GNOME NetworkManager allows remote attackers to cause a denial of service (IPv6 traffic disruption) via a crafted MTU value in an IPv6 Router Advertisement (RA) message, a different vulnerability than CVE-2015-8215.

The SUSE Linux Enterprise 11 SP2 kernel was updated to receive various security and bug fixes. The following security bugs were fixed :

  - CVE-2016-4486: Fixed 4 byte information leak in     net/core/rtnetlink.c (bsc#978822).

  - CVE-2016-3134: The netfilter subsystem in the Linux     kernel did not validate certain offset fields, which     allowed local users to gain privileges or cause a denial     of service (heap memory corruption) via an     IPT_SO_SET_REPLACE setsockopt call (bnc#971126).

  - CVE-2016-2847: fs/pipe.c in the Linux kernel did not     limit the amount of unread data in pipes, which allowed     local users to cause a denial of service (memory     consumption) by creating many pipes with non-default     sizes (bnc#970948).

  - CVE-2016-2188: The iowarrior_probe function in     drivers/usb/misc/iowarrior.c in the Linux kernel allowed     physically proximate attackers to cause a denial of     service (NULL pointer dereference and system crash) via     a crafted endpoints value in a USB device descriptor     (bnc#970956).

  - CVE-2016-3138: The acm_probe function in     drivers/usb/class/cdc-acm.c in the Linux kernel allowed     physically proximate attackers to cause a denial of     service (NULL pointer dereference and system crash) via     a USB device without both a control and a data endpoint     descriptor (bnc#970911).

  - CVE-2016-3137: drivers/usb/serial/cypress_m8.c in the     Linux kernel allowed physically proximate attackers to     cause a denial of service (NULL pointer dereference and     system crash) via a USB device without both an     interrupt-in and an interrupt-out endpoint descriptor,     related to the cypress_generic_port_probe and     cypress_open functions (bnc#970970).

  - CVE-2016-3140: The digi_port_init function in     drivers/usb/serial/digi_acceleport.c in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (NULL pointer dereference and system crash)     via a crafted endpoints value in a USB device descriptor     (bnc#970892).

  - CVE-2016-2186: The powermate_probe function in     drivers/input/misc/powermate.c in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (NULL pointer dereference and system crash)     via a crafted endpoints value in a USB device descriptor     (bnc#970958).

  - CVE-2016-2185: The ati_remote2_probe function in     drivers/input/misc/ati_remote2.c in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (NULL pointer dereference and system crash)     via a crafted endpoints value in a USB device descriptor     (bnc#971124).

  - CVE-2016-3156: The IPv4 implementation in the Linux     kernel mishandles destruction of device objects, which     allowed guest OS users to cause a denial of service     (host OS networking outage) by arranging for a large     number of IP addresses (bnc#971360).

  - CVE-2016-2184: The create_fixed_stream_quirk function in     sound/usb/quirks.c in the snd-usb-audio driver in the     Linux kernel allowed physically proximate attackers to     cause a denial of service (NULL pointer dereference or     double free, and system crash) via a crafted endpoints     value in a USB device descriptor (bnc#971125).

  - CVE-2016-3139: The wacom_probe function in     drivers/input/tablet/wacom_sys.c in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (NULL pointer dereference and system crash)     via a crafted endpoints value in a USB device descriptor     (bnc#970909).

  - CVE-2016-2143: The fork implementation in the Linux     kernel on s390 platforms mishandled the case of four     page-table levels, which allowed local users to cause a     denial of service (system crash) or possibly have     unspecified other impact via a crafted application,     related to arch/s390/include/asm/mmu_context.h and     arch/s390/include/asm/pgalloc.h (bnc#970504).

  - CVE-2016-2782: The treo_attach function in     drivers/usb/serial/visor.c in the Linux kernel allowed     physically proximate attackers to cause a denial of     service (NULL pointer dereference and system crash) or     possibly have unspecified other impact by inserting a     USB device that lacks a (1) bulk-in or (2) interrupt-in     endpoint (bnc#968670).

  - CVE-2015-8816: The hub_activate function in     drivers/usb/core/hub.c in the Linux kernel did not     properly maintain a hub-interface data structure, which     allowed physically proximate attackers to cause a denial     of service (invalid memory access and system crash) or     possibly have unspecified other impact by unplugging a     USB hub device (bnc#968010).

  - CVE-2015-7566: The clie_5_attach function in     drivers/usb/serial/visor.c in the Linux kernel allowed     physically proximate attackers to cause a denial of     service (NULL pointer dereference and system crash) or     possibly have unspecified other impact by inserting a     USB device that lacks a bulk-out endpoint (bnc#961512).

  - CVE-2016-2549: sound/core/hrtimer.c in the Linux kernel     did not prevent recursive callback access, which allowed     local users to cause a denial of service (deadlock) via     a crafted ioctl call (bnc#968013).

  - CVE-2016-2547: sound/core/timer.c in the Linux kernel     employed a locking approach that did not consider slave     timer instances, which allowed local users to cause a     denial of service (race condition, use-after-free, and     system crash) via a crafted ioctl call (bnc#968011).

  - CVE-2016-2548: sound/core/timer.c in the Linux kernel     retained certain linked lists after a close or stop     action, which allowed local users to cause a denial of     service (system crash) via a crafted ioctl call, related     to the (1) snd_timer_close and (2) _snd_timer_stop     functions (bnc#968012).

  - CVE-2016-2546: sound/core/timer.c in the Linux kernel     used an incorrect type of mutex, which allowed local     users to cause a denial of service (race condition,     use-after-free, and system crash) via a crafted ioctl     call (bnc#967975).

  - CVE-2016-2545: The snd_timer_interrupt function in     sound/core/timer.c in the Linux kernel did not properly     maintain a certain linked list, which allowed local     users to cause a denial of service (race condition and     system crash) via a crafted ioctl call (bnc#967974).

  - CVE-2016-2544: Race condition in the queue_delete     function in sound/core/seq/seq_queue.c in the Linux     kernel allowed local users to cause a denial of service     (use-after-free and system crash) by making an ioctl     call at a certain time (bnc#967973).

  - CVE-2016-2543: The snd_seq_ioctl_remove_events function     in sound/core/seq/seq_clientmgr.c in the Linux kernel     did not verify FIFO assignment before proceeding with     FIFO clearing, which allowed local users to cause a     denial of service (NULL pointer dereference and OOPS)     via a crafted ioctl call (bnc#967972).

  - CVE-2016-2384: Double free vulnerability in the     snd_usbmidi_create function in sound/usb/midi.c in the     Linux kernel allowed physically proximate attackers to     cause a denial of service (panic) or possibly have     unspecified other impact via vectors involving an     invalid USB descriptor (bnc#966693).

  - CVE-2015-8812: drivers/infiniband/hw/cxgb3/iwch_cm.c in     the Linux kernel did not properly identify error     conditions, which allowed remote attackers to execute     arbitrary code or cause a denial of service     (use-after-free) via crafted packets (bnc#966437).

  - CVE-2015-8785: The fuse_fill_write_pages function in     fs/fuse/file.c in the Linux kernel allowed local users     to cause a denial of service (infinite loop) via a     writev system call that triggers a zero length for the     first segment of an iov (bnc#963765).

  - CVE-2016-2069: Race condition in arch/x86/mm/tlb.c in     the Linux kernel .4.1 allowed local users to gain     privileges by triggering access to a paging structure by     a different CPU (bnc#963767).

  - CVE-2016-0723: Race condition in the tty_ioctl function     in drivers/tty/tty_io.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory or cause a denial of service (use-after-free and     system crash) by making a TIOCGETD ioctl call during     processing of a TIOCSETD ioctl call (bnc#961500).

  - CVE-2013-7446: Use-after-free vulnerability in     net/unix/af_unix.c in the Linux kernel allowed local     users to bypass intended AF_UNIX socket permissions or     cause a denial of service (panic) via crafted epoll_ctl     calls (bnc#955654).

  - CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux     kernel did not properly manage the relationship between     a lock and a socket, which allowed local users to cause     a denial of service (deadlock) via a crafted sctp_accept     call (bnc#961509).

  - CVE-2015-7515: The aiptek_probe function in     drivers/input/tablet/aiptek.c in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (NULL pointer dereference and system crash)     via a crafted USB device that lacks endpoints     (bnc#956708).

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in     the Linux kernel did not validate attempted changes to     the MTU value, which allowed context-dependent attackers     to cause a denial of service (packet loss) via a value     that is (1) smaller than the minimum compliant value or     (2) larger than the MTU of an interface, as demonstrated     by a Router Advertisement (RA) message that is not     validated by a daemon, a different vulnerability than     CVE-2015-0272 (bnc#955354).

  - CVE-2015-7550: The keyctl_read_key function in     security/keys/keyctl.c in the Linux kernel did not     properly use a semaphore, which allowed local users to     cause a denial of service (NULL pointer dereference and     system crash) or possibly have unspecified other impact     via a crafted application that leverages a race     condition between keyctl_revoke and keyctl_read calls     (bnc#958951).

  - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect     functions in drivers/net/ppp/pptp.c in the Linux kernel     did not verify an address length, which allowed local     users to obtain sensitive information from kernel memory     and bypass the KASLR protection mechanism via a crafted     application (bnc#959190).

  - CVE-2015-8575: The sco_sock_bind function in     net/bluetooth/sco.c in the Linux kernel did not verify     an address length, which allowed local users to obtain     sensitive information from kernel memory and bypass the     KASLR protection mechanism via a crafted application     (bnc#959399).

  - CVE-2015-8543: The networking implementation in the     Linux kernel did not validate protocol identifiers for     certain protocol families, which allowed local users to     cause a denial of service (NULL function pointer     dereference and system crash) or possibly gain     privileges by leveraging CLONE_NEWUSER support to     execute a crafted SOCK_RAW application (bnc#958886).

  - CVE-2015-8539: The KEYS subsystem in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (BUG) via crafted keyctl commands that     negatively instantiate a key, related to     security/keys/encrypted-keys/encrypted.c,     security/keys/trusted.c, and     security/keys/user_defined.c (bnc#958463).

  - CVE-2015-7509: fs/ext4/namei.c in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (system crash) via a crafted no-journal     filesystem, a related issue to CVE-2013-2015     (bnc#956709).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers are valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8104: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #DB (aka     Debug) exceptions, related to svm.c (bnc#954404).

  - CVE-2015-5307: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #AC (aka     Alignment Check) exceptions, related to svm.c and vmx.c     (bnc#953527).

  - CVE-2015-7990: Race condition in the rds_sendmsg     function in net/rds/sendmsg.c in the Linux kernel     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound (bnc#952384).

  - CVE-2015-7872: The key_gc_unused_keys function in     security/keys/gc.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) via crafted     keyctl commands (bnc#951440).

  - CVE-2015-6937: The __rds_conn_create function in     net/rds/connection.c in the Linux kernel allowed local     users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound (bnc#945825).

  - CVE-2015-6252: The vhost_dev_ioctl function in     drivers/vhost/vhost.c in the Linux kernel allowed local     users to cause a denial of service (memory consumption)     via a VHOST_SET_LOG_FD ioctl call that triggers     permanent file-descriptor allocation (bnc#942367).

  - CVE-2015-3339: Race condition in the prepare_binprm     function in fs/exec.c in the Linux kernel allowed local     users to gain privileges by executing a setuid program     at a time instant when a chown to root is in progress,     and the ownership is changed but the setuid bit is not     yet stripped (bnc#928130).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 11 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2013-7446: Use-after-free vulnerability in     net/unix/af_unix.c in the Linux kernel allowed local     users to bypass intended AF_UNIX socket permissions or     cause a denial of service (panic) via crafted epoll_ctl     calls (bnc#955654).

  - CVE-2015-7509: fs/ext4/namei.c in the Linux kernel     allowed physically proximate attackers to cause a denial     of service (system crash) via a crafted no-journal     filesystem, a related issue to CVE-2013-2015     (bnc#956707).

  - CVE-2015-7515: An out of bounds memory access in the     aiptek USB driver could be used by physical local     attackers to crash the kernel (bnc#956708).

  - CVE-2015-7550: The keyctl_read_key function in     security/keys/keyctl.c in the Linux kernel did not     properly use a semaphore, which allowed local users to     cause a denial of service (NULL pointer dereference and     system crash) or possibly have unspecified other impact     via a crafted application that leverages a race     condition between keyctl_revoke and keyctl_read calls     (bnc#958951).

  - CVE-2015-7566: A malicious USB device could cause kernel     crashes in the visor device driver (bnc#961512).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers are valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in     the Linux kernel did not validate attempted changes to     the MTU value, which allowed context-dependent attackers     to cause a denial of service (packet loss) via a value     that is (1) smaller than the minimum compliant value or     (2) larger than the MTU of an interface, as demonstrated     by a Router Advertisement (RA) message that is not     validated by a daemon, a different vulnerability than     CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is     limited to the NetworkManager product (bnc#955354).

  - CVE-2015-8539: The KEYS subsystem in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (BUG) via crafted keyctl commands that     negatively instantiate a key, related to     security/keys/encrypted-keys/encrypted.c,     security/keys/trusted.c, and     security/keys/user_defined.c (bnc#958463).

  - CVE-2015-8543: The networking implementation in the     Linux kernel did not validate protocol identifiers for     certain protocol families, which allowed local users to     cause a denial of service (NULL function pointer     dereference and system crash) or possibly gain     privileges by leveraging CLONE_NEWUSER support to     execute a crafted SOCK_RAW application (bnc#958886).

  - CVE-2015-8550: Optimizations introduced by the compiler     could have lead to double fetch vulnerabilities,     potentially possibly leading to arbitrary code execution     in backend (bsc#957988). (bsc#957988 XSA-155).

  - CVE-2015-8551: The PCI backend driver in Xen, when     running on an x86 system and using Linux as the driver     domain, allowed local guest administrators to hit BUG     conditions and cause a denial of service (NULL pointer     dereference and host OS crash) by leveraging a system     with access to a passed-through MSI or MSI-X capable     physical PCI device and a crafted sequence of     XEN_PCI_OP_* operations, aka 'Linux pciback missing     sanity checks (bnc#957990).

  - CVE-2015-8552: The PCI backend driver in Xen, when     running on an x86 system and using Linux as the driver     domain, allowed local guest administrators to generate a     continuous stream of WARN messages and cause a denial of     service (disk consumption) by leveraging a system with     access to a passed-through MSI or MSI-X capable physical     PCI device and XEN_PCI_OP_enable_msi operations, aka     'Linux pciback missing sanity checks (bnc#957990).

  - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect     functions in drivers/net/ppp/pptp.c in the Linux kernel     do not verify an address length, which allowed local     users to obtain sensitive information from kernel memory     and bypass the KASLR protection mechanism via a crafted     application (bnc#959190).

  - CVE-2015-8575: The sco_sock_bind function in     net/bluetooth/sco.c in the Linux kernel did not verify     an address length, which allowed local users to obtain     sensitive information from kernel memory and bypass the     KASLR protection mechanism via a crafted application     (bnc#959399).

  - CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux     kernel did not properly manage the relationship between     a lock and a socket, which allowed local users to cause     a denial of service (deadlock) via a crafted sctp_accept     call (bnc#961509).

  - CVE-2015-8785: The fuse_fill_write_pages function in     fs/fuse/file.c in the Linux kernel allowed local users     to cause a denial of service (infinite loop) via a     writev system call that triggers a zero length for the     first segment of an iov (bnc#963765).

  - CVE-2015-8812: A flaw was found in the CXGB3 kernel     driver when the network was considered congested. The     kernel would incorrectly misinterpret the congestion as     an error condition and incorrectly free/clean up the     skb. When the device would then send the skb's queued,     these structures would be referenced and may panic the     system or allow an attacker to escalate privileges in a     use-after-free scenario.(bsc#966437).

  - CVE-2015-8816: A malicious USB device could cause kernel     crashes in the in hub_activate() function (bnc#968010).

  - CVE-2016-0723: Race condition in the tty_ioctl function     in drivers/tty/tty_io.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory or cause a denial of service (use-after-free and     system crash) by making a TIOCGETD ioctl call during     processing of a TIOCSETD ioctl call (bnc#961500).

  - CVE-2016-2069: A race in invalidating paging structures     that were not in use locally could have lead to     disclosoure of information or arbitrary code exectution     (bnc#963767).

  - CVE-2016-2143: On zSeries a fork of a large process     could have caused memory corruption due to incorrect     page table handling. (bnc#970504, LTC#138810).

  - CVE-2016-2184: A malicious USB device could cause kernel     crashes in the alsa usb-audio device driver     (bsc#971125).

  - CVE-2016-2185: A malicious USB device could cause kernel     crashes in the usb_driver_claim_interface function     (bnc#971124).

  - CVE-2016-2186: A malicious USB device could cause kernel     crashes in the powermate device driver (bnc#970958).

  - CVE-2016-2384: A double free on the ALSA umidi object     was fixed. (bsc#966693).

  - CVE-2016-2543: A missing NULL check at remove_events     ioctl in the ALSA seq driver was fixed. (bsc#967972).

  - CVE-2016-2544: Fix race at timer setup and close in the     ALSA seq driver was fixed. (bsc#967973).

  - CVE-2016-2545: A double unlink of active_list in the     ALSA timer driver was fixed. (bsc#967974).

  - CVE-2016-2546: A race among ALSA timer ioctls was fixed     (bsc#967975).

  - CVE-2016-2547,CVE-2016-2548: The ALSA slave timer list     handling was hardened against hangs and races.
    (CVE-2016-2547,CVE-2016-2548,bsc#968011,bsc#968012).

  - CVE-2016-2549: A stall in ALSA hrtimer handling was     fixed (bsc#968013).

  - CVE-2016-2782: A malicious USB device could cause kernel     crashes in the visor device driver (bnc#968670).

  - CVE-2016-3137: A malicious USB device could cause kernel     crashes in the cypress_m8 device driver (bnc#970970).

  - CVE-2016-3139: A malicious USB device could cause kernel     crashes in the wacom device driver (bnc#970909).

  - CVE-2016-3140: A malicious USB device could cause kernel     crashes in the digi_acceleport device driver     (bnc#970892).

  - CVE-2016-3156: A quadratic algorithm could lead to long     kernel ipv4 hangs when removing a device with a large     number of addresses. (bsc#971360).

  - CVE-2016-3955: A remote buffer overflow in the usbip     driver could be used by authenticated attackers to crash     the kernel. (bsc#975945)

  - CVE-2016-2847: A local user could exhaust kernel memory     by pushing lots of data into pipes. (bsc#970948).

  - CVE-2016-2188: A malicious USB device could cause kernel     crashes in the iowarrior device driver (bnc#970956).

  - CVE-2016-3138: A malicious USB device could cause kernel     crashes in the cdc-acm device driver (bnc#970911).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.53 to receive various security and bugfixes.

The following security bugs were fixed :

  - CVE-2013-7446: Use-after-free vulnerability in     net/unix/af_unix.c in the Linux kernel allowed local     users to bypass intended AF_UNIX socket permissions or     cause a denial of service (panic) via crafted epoll_ctl     calls (bnc#955654).

  - CVE-2015-5707: Integer overflow in the sg_start_req     function in drivers/scsi/sg.c in the Linux kernel     allowed local users to cause a denial of service or     possibly have unspecified other impact via a large     iov_count value in a write request (bnc#940338).

  - CVE-2015-7550: The keyctl_read_key function in     security/keys/keyctl.c in the Linux kernel did not     properly use a semaphore, which allowed local users to     cause a denial of service (NULL pointer dereference and     system crash) or possibly have unspecified other impact     via a crafted application that leverages a race     condition between keyctl_revoke and keyctl_read calls     (bnc#958951).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers are valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in     the Linux kernel did not validate attempted changes to     the MTU value, which allowed context-dependent attackers     to cause a denial of service (packet loss) via a value     that was (1) smaller than the minimum compliant value or     (2) larger than the MTU of an interface, as demonstrated     by a Router Advertisement (RA) message that is not     validated by a daemon, a different vulnerability than     CVE-2015-0272 (bnc#955354).

  - CVE-2015-8539: The KEYS subsystem in the Linux kernel     allowed local users to gain privileges or cause a denial     of service (BUG) via crafted keyctl commands that     negatively instantiate a key, related to     security/keys/encrypted-keys/encrypted.c,     security/keys/trusted.c, and     security/keys/user_defined.c (bnc#958463).

  - CVE-2015-8543: The networking implementation in the     Linux kernel did not validate protocol identifiers for     certain protocol families, which allowed local users to     cause a denial of service (NULL function pointer     dereference and system crash) or possibly gain     privileges by leveraging CLONE_NEWUSER support to     execute a crafted SOCK_RAW application (bnc#958886).

  - CVE-2015-8550: Optimizations introduced by the compiler     could have lead to double fetch vulnerabilities,     potentially possibly leading to arbitrary code execution     in backend (bsc#957988).

  - CVE-2015-8551: Xen PCI backend driver did not perform     proper sanity checks on the device's state, allowing for     DoS (bsc#957990).

  - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect     functions in drivers/net/ppp/pptp.c in the Linux kernel     did not verify an address length, which allowed local     users to obtain sensitive information from kernel memory     and bypass the KASLR protection mechanism via a crafted     application (bnc#959190).

  - CVE-2015-8575: The sco_sock_bind function in     net/bluetooth/sco.c in the Linux kernel did not verify     an address length, which allowed local users to obtain     sensitive information from kernel memory and bypass the     KASLR protection mechanism via a crafted application     (bnc#959399).

  - CVE-2015-8660: The ovl_setattr function in     fs/overlayfs/inode.c in the Linux kernel attempted to     merge distinct setattr operations, which allowed local     users to bypass intended access restrictions and modify     the attributes of arbitrary overlay files via a crafted     application (bnc#960281).

  - CVE-2015-8767: net/sctp/sm_sideeffect.c in the Linux     kernel did not properly manage the relationship between     a lock and a socket, which allowed local users to cause     a denial of service (deadlock) via a crafted sctp_accept     call (bnc#961509).

  - CVE-2015-8785: The fuse_fill_write_pages function in     fs/fuse/file.c in the Linux kernel allowed local users     to cause a denial of service (infinite loop) via a     writev system call that triggers a zero length for the     first segment of an iov (bnc#963765).

  - CVE-2016-0723: Race condition in the tty_ioctl function     in drivers/tty/tty_io.c in the Linux kernel allowed     local users to obtain sensitive information from kernel     memory or cause a denial of service (use-after-free and     system crash) by making a TIOCGETD ioctl call during     processing of a TIOCSETD ioctl call (bnc#961500).

  - CVE-2016-2069: A race in invalidating paging structures     that were not in use locally could have lead to     disclosoure of information or arbitrary code exectution     (bnc#963767).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The openSUSE 13.2 kernel was updated to receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2016-0728: A reference leak in keyring handling with     join_session_keyring() could lead to local attackers     gain root privileges. (bsc#962075).

  - CVE-2015-7550: A local user could have triggered a race     between read and revoke in keyctl (bnc#958951).

  - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect     functions in drivers/net/ppp/pptp.c in the Linux kernel     did not verify an address length, which allowed local     users to obtain sensitive information from kernel memory     and bypass the KASLR protection mechanism via a crafted     application (bnc#959190).

  - CVE-2015-8543: The networking implementation in the     Linux kernel did not validate protocol identifiers for     certain protocol families, which allowed local users to     cause a denial of service (NULL function pointer     dereference and system crash) or possibly gain     privileges by leveraging CLONE_NEWUSER support to     execute a crafted SOCK_RAW application (bnc#958886).

  - CVE-2014-8989: The Linux kernel did not properly     restrict dropping of supplemental group memberships in     certain namespace scenarios, which allowed local users     to bypass intended file permissions by leveraging a     POSIX ACL containing an entry for the group category     that is more restrictive than the entry for the other     category, aka a 'negative groups' issue, related to     kernel/groups.c, kernel/uid16.c, and     kernel/user_namespace.c (bnc#906545).

  - CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux     kernel on the x86_64 platform mishandles IRET faults in     processing NMIs that occurred during userspace     execution, which might allow local users to gain     privileges by triggering an NMI (bnc#937969).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel through     4.2.3 did not ensure that certain slot numbers are     valid, which allowed local users to cause a denial of     service (NULL pointer dereference and system crash) via     a crafted PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8104: The KVM subsystem in the Linux kernel     through 4.2.6, and Xen 4.3.x through 4.6.x, allowed     guest OS users to cause a denial of service (host OS     panic or hang) by triggering many #DB (aka Debug)     exceptions, related to svm.c (bnc#954404).

  - CVE-2015-5307: The KVM subsystem in the Linux kernel     through 4.2.6, and Xen 4.3.x through 4.6.x, allowed     guest OS users to cause a denial of service (host OS     panic or hang) by triggering many #AC (aka Alignment     Check) exceptions, related to svm.c and vmx.c     (bnc#953527).

  - CVE-2014-9529: Race condition in the key_gc_unused_keys     function in security/keys/gc.c in the Linux kernel     allowed local users to cause a denial of service (memory     corruption or panic) or possibly have unspecified other     impact via keyctl commands that trigger access to a key     structure member during garbage collection of a key     (bnc#912202).

  - CVE-2015-7990: Race condition in the rds_sendmsg     function in net/rds/sendmsg.c in the Linux kernel     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound. NOTE: this vulnerability exists because     of an incomplete fix for CVE-2015-6937 (bnc#952384     953052).

  - CVE-2015-6937: The __rds_conn_create function in     net/rds/connection.c in the Linux kernel allowed local     users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound (bnc#945825).

  - CVE-2015-7885: The dgnc_mgmt_ioctl function in     drivers/staging/dgnc/dgnc_mgmt.c in the Linux kernel     through 4.3.3 did not initialize a certain structure     member, which allowed local users to obtain sensitive     information from kernel memory via a crafted application     (bnc#951627).

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in     the Linux kernel did not validate attempted changes to     the MTU value, which allowed context-dependent attackers     to cause a denial of service (packet loss) via a value     that is (1) smaller than the minimum compliant value or     (2) larger than the MTU of an interface, as demonstrated     by a Router Advertisement (RA) message that is not     validated by a daemon, a different vulnerability than     CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is     limited to the NetworkManager product (bnc#955354).

  - CVE-2015-8767: A case can occur when sctp_accept() is     called by the user during a heartbeat timeout event     after the 4-way handshake. Since sctp_assoc_migrate()     changes both assoc->base.sk and assoc->ep, the     bh_sock_lock in sctp_generate_heartbeat_event() will be     taken with the listening socket but released with the     new association socket. The result is a deadlock on any     future attempts to take the listening socket lock.
    (bsc#961509)

  - CVE-2015-8575: Validate socket address length in     sco_sock_bind() to prevent information leak     (bsc#959399).

  - CVE-2015-8551, CVE-2015-8552: xen/pciback: For     XEN_PCI_OP_disable_msi[|x] only disable if device has     MSI(X) enabled (bsc#957990).

  - CVE-2015-8550: Compiler optimizations in the XEN PV     backend drivers could have lead to double fetch     vulnerabilities, causing denial of service or arbitrary     code execution (depending on the configuration)     (bsc#957988).

The following non-security bugs were fixed :

  - ALSA: hda - Disable 64bit address for Creative HDA     controllers (bnc#814440).

  - ALSA: hda - Fix noise problems on Thinkpad T440s     (boo#958504).

  - Input: aiptek - fix crash on detecting device without     endpoints (bnc#956708).

  - KEYS: Make /proc/keys unconditional if CONFIG_KEYS=y     (boo#956934).

  - KVM: x86: update masterclock values on TSC writes     (bsc#961739).

  - NFS: Fix a NULL pointer dereference of migration     recovery ops for v4.2 client (bsc#960839).

  - apparmor: allow SYS_CAP_RESOURCE to be sufficient to     prlimit another task (bsc#921949).

  - blktap: also call blkif_disconnect() when frontend     switched to closed (bsc#952976).

  - blktap: refine mm tracking (bsc#952976).

  - cdrom: Random writing support for BD-RE media     (bnc#959568).

  - genksyms: Handle string literals with spaces in     reference files (bsc#958510).

  - ipv4: Do not increase PMTU with Datagram Too Big message     (bsc#955224).

  - ipv6: distinguish frag queues by device for multicast     and link-local packets (bsc#955422).

  - ipv6: fix tunnel error handling (bsc#952579).

  - route: Use ipv4_mtu instead of raw rt_pmtu (bsc#955224).

  - uas: Add response iu handling (bnc#954138).

  - usbvision fix overflow of interfaces array (bnc#950998).

  - x86/evtchn: make use of PHYSDEVOP_map_pirq.

  - xen/pciback: Do not allow MSI-X ops if     PCI_COMMAND_MEMORY is not set (bsc#957990 XSA-157).

The openSUSE 13.1 kernel was updated to receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2016-0728: A reference leak in keyring handling with     join_session_keyring() could lead to local attackers     gain root privileges. (bsc#962075).

  - CVE-2015-7550: A local user could have triggered a race     between read and revoke in keyctl (bnc#958951).

  - CVE-2015-8569: The (1) pptp_bind and (2) pptp_connect     functions in drivers/net/ppp/pptp.c in the Linux kernel     did not verify an address length, which allowed local     users to obtain sensitive information from kernel memory     and bypass the KASLR protection mechanism via a crafted     application (bnc#959190).

  - CVE-2015-8543: The networking implementation in the     Linux kernel did not validate protocol identifiers for     certain protocol families, which allowed local users to     cause a denial of service (NULL function pointer     dereference and system crash) or possibly gain     privileges by leveraging CLONE_NEWUSER support to     execute a crafted SOCK_RAW application (bnc#958886).

  - CVE-2014-8989: The Linux kernel did not properly     restrict dropping of supplemental group memberships in     certain namespace scenarios, which allowed local users     to bypass intended file permissions by leveraging a     POSIX ACL containing an entry for the group category     that is more restrictive than the entry for the other     category, aka a 'negative groups' issue, related to     kernel/groups.c, kernel/uid16.c, and     kernel/user_namespace.c (bnc#906545).

  - CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux     kernel on the x86_64 platform mishandles IRET faults in     processing NMIs that occurred during userspace     execution, which might allow local users to gain     privileges by triggering an NMI (bnc#937969).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel through     4.2.3 did not ensure that certain slot numbers are     valid, which allowed local users to cause a denial of     service (NULL pointer dereference and system crash) via     a crafted PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8104: The KVM subsystem in the Linux kernel     through 4.2.6, and Xen 4.3.x through 4.6.x, allowed     guest OS users to cause a denial of service (host OS     panic or hang) by triggering many #DB (aka Debug)     exceptions, related to svm.c (bnc#954404).

  - CVE-2015-5307: The KVM subsystem in the Linux kernel     through 4.2.6, and Xen 4.3.x through 4.6.x, allowed     guest OS users to cause a denial of service (host OS     panic or hang) by triggering many #AC (aka Alignment     Check) exceptions, related to svm.c and vmx.c     (bnc#953527).

  - CVE-2014-9529: Race condition in the key_gc_unused_keys     function in security/keys/gc.c in the Linux kernel     allowed local users to cause a denial of service (memory     corruption or panic) or possibly have unspecified other     impact via keyctl commands that trigger access to a key     structure member during garbage collection of a key     (bnc#912202).

  - CVE-2015-7990: Race condition in the rds_sendmsg     function in net/rds/sendmsg.c in the Linux kernel     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound. NOTE: this vulnerability exists because     of an incomplete fix for CVE-2015-6937 (bnc#952384     953052).

  - CVE-2015-6937: The __rds_conn_create function in     net/rds/connection.c in the Linux kernel allowed local     users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound (bnc#945825).

  - CVE-2015-7885: The dgnc_mgmt_ioctl function in     drivers/staging/dgnc/dgnc_mgmt.c in the Linux kernel     through 4.3.3 did not initialize a certain structure     member, which allowed local users to obtain sensitive     information from kernel memory via a crafted application     (bnc#951627).

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in     the Linux kernel did not validate attempted changes to     the MTU value, which allowed context-dependent attackers     to cause a denial of service (packet loss) via a value     that is (1) smaller than the minimum compliant value or     (2) larger than the MTU of an interface, as demonstrated     by a Router Advertisement (RA) message that is not     validated by a daemon, a different vulnerability than     CVE-2015-0272. NOTE: the scope of CVE-2015-0272 is     limited to the NetworkManager product (bnc#955354).

  - CVE-2015-8767: A case can occur when sctp_accept() is     called by the user during a heartbeat timeout event     after the 4-way handshake. Since sctp_assoc_migrate()     changes both assoc->base.sk and assoc->ep, the     bh_sock_lock in sctp_generate_heartbeat_event() will be     taken with the listening socket but released with the     new association socket. The result is a deadlock on any     future attempts to take the listening socket lock.
    (bsc#961509)

  - CVE-2015-8575: Validate socket address length in     sco_sock_bind() to prevent information leak     (bsc#959399).

  - CVE-2015-8551, CVE-2015-8552: xen/pciback: For     XEN_PCI_OP_disable_msi[|x] only disable if device has     MSI(X) enabled (bsc#957990).

  - CVE-2015-8550: Compiler optimizations in the XEN PV     backend drivers could have lead to double fetch     vulnerabilities, causing denial of service or arbitrary     code execution (depending on the configuration)     (bsc#957988).

The following non-security bugs were fixed :

  - ALSA: hda - Disable 64bit address for Creative HDA     controllers (bnc#814440).

  - ALSA: hda - Fix noise problems on Thinkpad T440s     (boo#958504).

  - Input: aiptek - fix crash on detecting device without     endpoints (bnc#956708).

  - KEYS: Make /proc/keys unconditional if CONFIG_KEYS=y     (boo#956934).

  - KVM: x86: update masterclock values on TSC writes     (bsc#961739).

  - NFS: Fix a NULL pointer dereference of migration     recovery ops for v4.2 client (bsc#960839).

  - apparmor: allow SYS_CAP_RESOURCE to be sufficient to     prlimit another task (bsc#921949).

  - blktap: also call blkif_disconnect() when frontend     switched to closed (bsc#952976).

  - blktap: refine mm tracking (bsc#952976).

  - cdrom: Random writing support for BD-RE media     (bnc#959568).

  - genksyms: Handle string literals with spaces in     reference files (bsc#958510).

  - ipv4: Do not increase PMTU with Datagram Too Big message     (bsc#955224).

  - ipv6: distinguish frag queues by device for multicast     and link-local packets (bsc#955422).

  - ipv6: fix tunnel error handling (bsc#952579).

  - route: Use ipv4_mtu instead of raw rt_pmtu (bsc#955224).

  - uas: Add response iu handling (bnc#954138).

  - usbvision fix overflow of interfaces array (bnc#950998).

  - x86/evtchn: make use of PHYSDEVOP_map_pirq.

  - xen/pciback: Do not allow MSI-X ops if     PCI_COMMAND_MEMORY is not set (bsc#957990 XSA-157).

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2015-7509: Mounting ext4 filesystems in no-journal     mode could hav lead to a system crash (bsc#956709).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers are valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-8104: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #DB (aka     Debug) exceptions, related to svm.c (bnc#954404).

  - CVE-2015-5307: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #AC (aka     Alignment Check) exceptions, related to svm.c and vmx.c     (bnc#953527).

  - CVE-2015-7990: RDS: There was no verification that an     underlying transport exists when creating a connection,     causing usage of a NULL pointer (bsc#952384).

  - CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux     kernel on the x86_64 platform mishandled IRET faults in     processing NMIs that occurred during userspace     execution, which might have allowed local users to gain     privileges by triggering an NMI (bnc#938706).

  - CVE-2015-7872: The key_gc_unused_keys function in     security/keys/gc.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) via crafted     keyctl commands (bnc#951440).

  - CVE-2015-0272: Missing checks allowed remote attackers     to cause a denial of service (IPv6 traffic disruption)     via a crafted MTU value in an IPv6 Router Advertisement     (RA) message, a different vulnerability than     CVE-2015-8215 (bnc#944296).

  - CVE-2015-6937: The __rds_conn_create function in     net/rds/connection.c in the Linux kernel allowed local     users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound (bnc#945825).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that NetworkManager would set device MTUs based on MTU values received in IPv6 RAs (Router Advertisements), without sanity checking the MTU value first. A remote attacker could exploit this flaw to create a denial of service attack, by sending a specially crafted IPv6 RA packet to disturb IPv6 communication. (CVE-2015-0272)

A flaw was found in the way NetworkManager handled router advertisements. An unprivileged user on a local network could use IPv6 Neighbor Discovery ICMP to broadcast a non-route with a low hop limit, causing machines to lower the hop limit on existing IPv6 routes. If this limit is small enough, IPv6 packets would be dropped before reaching the final destination. (CVE-2015-2924)

The network-manager-applet and NetworkManager-libreswan packages have been upgraded to upstream versions 1.0.6, and provide a number of bug fixes and enhancements over the previous versions.

Bugs :

  - It was not previously possible to set the Wi-Fi band to     the 'a' or 'bg' values to lock to a specific frequency     band. NetworkManager has been fixed, and it now sets the     wpa_supplicant's 'freq_list' option correctly, which     enables proper Wi-Fi band locking.

  - NetworkManager immediately failed activation of devices     that did not have a carrier early in the boot process.
    The legacy network.service then reported activation     failure. Now, NetworkManager has a grace period during     which it waits for the carrier to appear. Devices that     have a carrier down for a short time on system startup     no longer cause the legacy network.service to fail.

  - NetworkManager brought down a team device if the teamd     service managing it exited unexpectedly, and the team     device was deactivated. Now, NetworkManager respawns the     teamd instances that disappear and is able to recover     from a teamd failure avoiding disruption of the team     device operation.

  - NetworkManager did not send the FQDN DHCP option even if     host name was set to FQDN. Consequently, Dynamic DNS     (DDNS) setups failed to update the DNS records for     clients running NetworkManager. Now, NetworkManager     sends the FQDN option with DHCP requests, and the DHCP     server is able to create DNS records for such clients.

  - The command-line client was not validating the     vlan.flags property correctly, and a spurious warning     message was displayed when the nmcli tool worked with     VLAN connections. The validation routine has been fixed,     and the warning message no longer appears.

  - NetworkManager did not propagate a media access control     (MAC) address change from a bonding interface to a VLAN     interface on top of it. Consequently, a VLAN interface     on top of a bond used an incorrect MAC address. Now,     NetworkManager synchronizes the addresses correctly.

Enhancements :

  - IPv6 Privacy extensions are now enabled by default.
    NetworkManager checks the per-network configuration     files, NetworkManager.conf, and then falls back to     '/proc/sys/net/ipv6/conf/default/use_tempaddr' to     determine and set IPv6 privacy settings at device     activation.

  - The NetworkManager command-line tool, nmcli, now allows     setting the wake-on-lan property to 0 ('none',     'disable', 'disabled').

  - NetworkManager now provides information about metered     connections.

  - NetworkManager daemon and the connection editor now     support setting the Maximum Transmission Unit (MTU) of a     bond. It is now possible to change MTU of a bond     interface in a GUI.

  - NetworkManager daemon and the connection editor now     support setting the MTU of a team, allowing to change     MTU of a teaming interface.

The SUSE Linux Enterprise 12 SP1 kernel was updated to 3.12.51 to receive various security and bugfixes.

Following features were added :

  - hwrng: Add a driver for the hwrng found in power7+     systems (fate#315784).

Following security bugs were fixed :

  - CVE-2015-8215: net/ipv6/addrconf.c in the IPv6 stack in     the Linux kernel did not validate attempted changes to     the MTU value, which allowed context-dependent attackers     to cause a denial of service (packet loss) via a value     that is (1) smaller than the minimum compliant value or     (2) larger than the MTU of an interface, as demonstrated     by a Router Advertisement (RA) message that is not     validated by a daemon, a different vulnerability than     CVE-2015-0272. (bsc#955354)

  - CVE-2015-5156: The virtnet_probe function in     drivers/net/virtio_net.c in the Linux kernel attempted     to support a FRAGLIST feature without proper memory     allocation, which allowed guest OS users to cause a     denial of service (buffer overflow and memory     corruption) via a crafted sequence of fragmented packets     (bnc#940776).

  - CVE-2015-7872: The key_gc_unused_keys function in     security/keys/gc.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) via crafted     keyctl commands (bnc#951440).

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers are valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-2925: The prepend_path function in fs/dcache.c     in the Linux kernel did not properly handle rename     actions inside a bind mount, which allowed local users     to bypass an intended container protection mechanism by     renaming a directory, related to a 'double-chroot attack     (bnc#926238).

  - CVE-2015-7990: RDS: Verify the underlying transport     exists before creating a connection, preventing possible     DoS (bsc#952384).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 12 kernel was updated to 3.12.51 to receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2015-7799: The slhc_init function in     drivers/net/slip/slhc.c in the Linux kernel did not     ensure that certain slot numbers were valid, which     allowed local users to cause a denial of service (NULL     pointer dereference and system crash) via a crafted     PPPIOCSMAXCID ioctl call (bnc#949936).

  - CVE-2015-5283: The sctp_init function in     net/sctp/protocol.c in the Linux kernel had an incorrect     sequence of protocol-initialization steps, which allowed     local users to cause a denial of service (panic or     memory corruption) by creating SCTP sockets before all     of the steps have finished (bnc#947155).

  - CVE-2015-2925: The prepend_path function in fs/dcache.c     in the Linux kernel did not properly handle rename     actions inside a bind mount, which allowed local users     to bypass an intended container protection mechanism by     renaming a directory, related to a 'double-chroot attack     (bnc#926238).

  - CVE-2015-8104: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #DB (aka     Debug) exceptions, related to svm.c (bnc#954404).

  - CVE-2015-5307: The KVM subsystem in the Linux kernel     allowed guest OS users to cause a denial of service     (host OS panic or hang) by triggering many #AC (aka     Alignment Check) exceptions, related to svm.c and vmx.c     (bnc#953527).

  - CVE-2015-7990: RDS: There was no verification that an     underlying transport exists when creating a connection,     causing usage of a NULL pointer (bsc#952384).

  - CVE-2015-7872: The key_gc_unused_keys function in     security/keys/gc.c in the Linux kernel allowed local     users to cause a denial of service (OOPS) via crafted     keyctl commands (bnc#951440).

  - CVE-2015-0272: Missing checks allowed remote attackers     to cause a denial of service (IPv6 traffic disruption)     via a crafted MTU value in an IPv6 Router Advertisement     (RA) message, a different vulnerability than     CVE-2015-8215 (bnc#944296).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Updated NetworkManager packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

NetworkManager is a system network service that manages network devices and connections.

It was discovered that NetworkManager would set device MTUs based on MTU values received in IPv6 RAs (Router Advertisements), without sanity checking the MTU value first. A remote attacker could exploit this flaw to create a denial of service attack, by sending a specially crafted IPv6 RA packet to disturb IPv6 communication. (CVE-2015-0272)

A flaw was found in the way NetworkManager handled router advertisements. An unprivileged user on a local network could use IPv6 Neighbor Discovery ICMP to broadcast a non-route with a low hop limit, causing machines to lower the hop limit on existing IPv6 routes. If this limit is small enough, IPv6 packets would be dropped before reaching the final destination. (CVE-2015-2924)

The network-manager-applet and NetworkManager-libreswan packages have been upgraded to upstream versions 1.0.6, and provide a number of bug fixes and enhancements over the previous versions. (BZ#1177582, BZ#1243057)

Bugs :

* It was not previously possible to set the Wi-Fi band to the 'a' or 'bg' values to lock to a specific frequency band. NetworkManager has been fixed, and it now sets the wpa_supplicant's 'freq_list' option correctly, which enables proper Wi-Fi band locking. (BZ#1254461)

* NetworkManager immediately failed activation of devices that did not have a carrier early in the boot process. The legacy network.service then reported activation failure. Now, NetworkManager has a grace period during which it waits for the carrier to appear. Devices that have a carrier down for a short time on system startup no longer cause the legacy network.service to fail. (BZ#1079353)

* NetworkManager brought down a team device if the teamd service managing it exited unexpectedly, and the team device was deactivated.
Now, NetworkManager respawns the teamd instances that disappear and is able to recover from a teamd failure avoiding disruption of the team device operation. (BZ#1145988)

* NetworkManager did not send the FQDN DHCP option even if host name was set to FQDN. Consequently, Dynamic DNS (DDNS) setups failed to update the DNS records for clients running NetworkManager. Now, NetworkManager sends the FQDN option with DHCP requests, and the DHCP server is able to create DNS records for such clients. (BZ#1212597)

* The command-line client was not validating the vlan.flags property correctly, and a spurious warning message was displayed when the nmcli tool worked with VLAN connections. The validation routine has been fixed, and the warning message no longer appears. (BZ#1244048)

* NetworkManager did not propagate a media access control (MAC) address change from a bonding interface to a VLAN interface on top of it. Consequently, a VLAN interface on top of a bond used an incorrect MAC address. Now, NetworkManager synchronizes the addresses correctly.
(BZ#1264322)

Enhancements :

* IPv6 Privacy extensions are now enabled by default. NetworkManager checks the per-network configuration files, NetworkManager.conf, and then falls back to '/proc/sys/net/ipv6/conf/default/use_tempaddr' to determine and set IPv6 privacy settings at device activation.
(BZ#1187525)

* The NetworkManager command-line tool, nmcli, now allows setting the wake-on-lan property to 0 ('none', 'disable', 'disabled').
(BZ#1260584)

* NetworkManager now provides information about metered connections.
(BZ#1200452)

* NetworkManager daemon and the connection editor now support setting the Maximum Transmission Unit (MTU) of a bond. It is now possible to change MTU of a bond interface in a GUI. (BZ#1177582, BZ#1177860)

* NetworkManager daemon and the connection editor now support setting the MTU of a team, allowing to change MTU of a teaming interface.
(BZ#1255927)

NetworkManager users are advised to upgrade to these updated packages, which correct these issues and add these enhancements.

The SUSE Linux Enterprise 11 Service Pack 3 kernel was updated to receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2015-8104: Prevent guest to host DoS caused by     infinite loop in microcode via #DB exception     (bsc#954404).

  - CVE-2015-5307: Prevent guest to host DoS caused by     infinite loop in microcode via #AC exception     (bsc#953527).

  - CVE-2015-7990: RDS: Verify the underlying transport     exists before creating a connection, preventing possible     DoS (bsc#952384).

  - CVE-2015-5157: arch/x86/entry/entry_64.S in the Linux     kernel on the x86_64 platform mishandled IRET faults in     processing NMIs that occurred during userspace     execution, which might have allowed local users to gain     privileges by triggering an NMI (bsc#938706).

  - CVE-2015-7872: Possible crash when trying to garbage     collect an uninstantiated keyring (bsc#951440).

  - CVE-2015-0272: Prevent remote DoS using IPv6 RA with     bogus MTU by validating before applying it (bsc#944296).

  - CVE-2015-6937: The __rds_conn_create function in     net/rds/connection.c in the Linux kernel allowed local     users to cause a denial of service (NULL pointer     dereference and system crash) or possibly have     unspecified other impact by using a socket that was not     properly bound (bsc#945825).

  - CVE-2015-6252: The vhost_dev_ioctl function in     drivers/vhost/vhost.c in the Linux kernel allowed local     users to cause a denial of service (memory consumption)     via a VHOST_SET_LOG_FD ioctl call that triggered     permanent file-descriptor allocation (bsc#942367).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

From Red Hat Security Advisory 2015:2315 :

Updated NetworkManager packages that fix two security issues, several bugs, and add various enhancements are now available for Red Hat Enterprise Linux 7.

Red Hat Product Security has rated this update as having Moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

NetworkManager is a system network service that manages network devices and connections.

It was discovered that NetworkManager would set device MTUs based on MTU values received in IPv6 RAs (Router Advertisements), without sanity checking the MTU value first. A remote attacker could exploit this flaw to create a denial of service attack, by sending a specially crafted IPv6 RA packet to disturb IPv6 communication. (CVE-2015-0272)

A flaw was found in the way NetworkManager handled router advertisements. An unprivileged user on a local network could use IPv6 Neighbor Discovery ICMP to broadcast a non-route with a low hop limit, causing machines to lower the hop limit on existing IPv6 routes. If this limit is small enough, IPv6 packets would be dropped before reaching the final destination. (CVE-2015-2924)

The network-manager-applet and NetworkManager-libreswan packages have been upgraded to upstream versions 1.0.6, and provide a number of bug fixes and enhancements over the previous versions. (BZ#1177582, BZ#1243057)

Bugs :

* It was not previously possible to set the Wi-Fi band to the 'a' or 'bg' values to lock to a specific frequency band. NetworkManager has been fixed, and it now sets the wpa_supplicant's 'freq_list' option correctly, which enables proper Wi-Fi band locking. (BZ#1254461)

* NetworkManager immediately failed activation of devices that did not have a carrier early in the boot process. The legacy network.service then reported activation failure. Now, NetworkManager has a grace period during which it waits for the carrier to appear. Devices that have a carrier down for a short time on system startup no longer cause the legacy network.service to fail. (BZ#1079353)

* NetworkManager brought down a team device if the teamd service managing it exited unexpectedly, and the team device was deactivated.
Now, NetworkManager respawns the teamd instances that disappear and is able to recover from a teamd failure avoiding disruption of the team device operation. (BZ#1145988)

* NetworkManager did not send the FQDN DHCP option even if host name was set to FQDN. Consequently, Dynamic DNS (DDNS) setups failed to update the DNS records for clients running NetworkManager. Now, NetworkManager sends the FQDN option with DHCP requests, and the DHCP server is able to create DNS records for such clients. (BZ#1212597)

* The command-line client was not validating the vlan.flags property correctly, and a spurious warning message was displayed when the nmcli tool worked with VLAN connections. The validation routine has been fixed, and the warning message no longer appears. (BZ#1244048)

* NetworkManager did not propagate a media access control (MAC) address change from a bonding interface to a VLAN interface on top of it. Consequently, a VLAN interface on top of a bond used an incorrect MAC address. Now, NetworkManager synchronizes the addresses correctly.
(BZ#1264322)

Enhancements :

* IPv6 Privacy extensions are now enabled by default. NetworkManager checks the per-network configuration files, NetworkManager.conf, and then falls back to '/proc/sys/net/ipv6/conf/default/use_tempaddr' to determine and set IPv6 privacy settings at device activation.
(BZ#1187525)

* The NetworkManager command-line tool, nmcli, now allows setting the wake-on-lan property to 0 ('none', 'disable', 'disabled').
(BZ#1260584)

* NetworkManager now provides information about metered connections.
(BZ#1200452)

* NetworkManager daemon and the connection editor now support setting the Maximum Transmission Unit (MTU) of a bond. It is now possible to change MTU of a bond interface in a GUI. (BZ#1177582, BZ#1177860)

* NetworkManager daemon and the connection editor now support setting the MTU of a team, allowing to change MTU of a teaming interface.
(BZ#1255927)

NetworkManager users are advised to upgrade to these updated packages, which correct these issues and add these enhancements.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2797-1 advisory.

  - GNOME NetworkManager allows remote attackers to cause a denial of service (IPv6 traffic disruption) via a     crafted MTU value in an IPv6 Router Advertisement (RA) message, a different vulnerability than     CVE-2015-8215. (CVE-2015-0272)

  - The prepend_path function in fs/dcache.c in the Linux kernel before 4.2.4 does not properly handle rename     actions inside a bind mount, which allows local users to bypass an intended container protection mechanism     by renaming a directory, related to a double-chroot attack. (CVE-2015-2925)

  - drivers/usb/serial/whiteheat.c in the Linux kernel before 4.2.4 allows physically proximate attackers to     cause a denial of service (NULL pointer dereference and OOPS) or possibly have unspecified other impact     via a crafted USB device. NOTE: this ID was incorrectly used for an Apache Cordova issue that has the     correct ID of CVE-2015-8320. (CVE-2015-5257)

  - The sctp_init function in net/sctp/protocol.c in the Linux kernel before 4.2.3 has an incorrect sequence     of protocol-initialization steps, which allows local users to cause a denial of service (panic or memory     corruption) by creating SCTP sockets before all of the steps have finished. (CVE-2015-5283)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Dmitry Vyukov discovered that the Linux kernel did not properly initialize IPC object state in certain situations. A local attacker could use this to escalate their privileges, expose confidential information, or cause a denial of service (system crash).
(CVE-2015-7613)

It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service. (CVE-2015-0272)

It was discovered that in certain situations, a directory could be renamed outside of a bind mounted location. An attacker could use this to escape bind mount containment and gain access to sensitive information. (CVE-2015-2925)

Moein Ghasemzadeh discovered that the USB WhiteHEAT serial driver contained hardcoded attributes about the USB devices. An attacker could construct a fake WhiteHEAT USB device that, when inserted, causes a denial of service (system crash). (CVE-2015-5257).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The openSUSE 13.2 kernel was updated to receive various security and bugfixes.

Following security bugs were fixed :

  - CVE-2015-3290: arch/x86/entry/entry_64.S in the Linux     kernel on the x86_64 platform improperly relied on     espfix64 during nested NMI processing, which allowed     local users to gain privileges by triggering an NMI     within a certain instruction window (bnc#937969)

  - CVE-2015-0272: It was reported that it's possible to     craft a Router Advertisement message which will bring     the receiver in a state where new IPv6 connections will     not be accepted until correct Router Advertisement     message received. (bsc#944296).

  - CVE-2015-5283: The sctp_init function in     net/sctp/protocol.c in the Linux kernel had an incorrect     sequence of protocol-initialization steps, which allowed     local users to cause a denial of service (panic or     memory corruption) by creating SCTP sockets before all     of the steps have finished (bnc#947155).

  - CVE-2015-1333: Memory leak in the __key_link_end     function in security/keys/keyring.c in the Linux kernel     allowed local users to cause a denial of service (memory     consumption) via many add_key system calls that refer to     existing keys. (bsc#938645)

  - CVE-2015-5707: Integer overflow in the sg_start_req     function in drivers/scsi/sg.c in the Linux kernel     allowed local users to cause a denial of service or     possibly have unspecified other impact via a large     iov_count value in a write request. (bsc#940338)

  - CVE-2015-2925: An attacker could potentially break out     of a namespace or container, depending on if he had     specific rights in these containers. (bsc#926238).

  - CVE-2015-7872: A vulnerability in keyrings garbage     collector allowed a local user to trigger an oops was     found, caused by using request_key() or keyctl request2.
    (bsc#951440)

The following non-security bugs were fixed :

  - input: evdev - do not report errors form flush()     (bsc#939834).

  - NFSv4: Recovery of recalled read delegations is broken     (bsc#942178).

  - apparmor: temporary work around for bug while unloading     policy (boo#941867).

  - config/x86_64/ec2: Align CONFIG_STRICT_DEVMEM     CONFIG_STRICT_DEVMEM is enabled in every other kernel     flavor, so enable it for x86_64/ec2 as well.

  - kernel-obs-build: add btrfs to initrd This is needed for     kiwi builds.

  - mmc: card: Do not access RPMB partitions for normal     read/write (bnc#941104).

  - netback: coalesce (guest) RX SKBs as needed     (bsc#919154).

  - rpm/kernel-obs-build.spec.in: Add virtio_rng to the     initrd. This allows to feed some randomness to the OBS     workers.

  - xfs: Fix file type directory corruption for btree     directories (bsc#941305).

  - xfs: ensure buffer types are set correctly (bsc#941305).

  - xfs: inode unlink does not set AGI buffer type     (bsc#941305).

  - xfs: set buf types when converting extent formats     (bsc#941305).

  - xfs: set superblock buffer type correctly (bsc#941305).

  - xhci: Add spurious wakeup quirk for LynxPoint-LP     controllers (bnc#951195).

It was discovered that the Linux kernel did not check if a new IPv6 MTU set by a user space application was valid. A remote attacker could forge a route advertisement with an invalid MTU that a user space daemon like NetworkManager would honor and apply to the kernel, causing a denial of service. (CVE-2015-0272)

It was discovered that virtio networking in the Linux kernel did not handle fragments correctly, leading to kernel memory corruption. A remote attacker could use this to cause a denial of service (system crash) or possibly execute code with administrative privileges.
(CVE-2015-5156)

It was discovered that the Reliable Datagram Sockets (RDS) implementation in the Linux kernel did not verify sockets were properly bound before attempting to send a message, which could cause a NULL pointer dereference. An attacker could use this to cause a denial of service (system crash). (CVE-2015-6937)

Ben Hutchings discovered that the Advanced Union Filesystem (aufs) for the Linux kernel did not correctly handle references of memory mapped files from an aufs mount. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code with administrative privileges. (CVE-2015-7312).

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2778-1 advisory.

  - GNOME NetworkManager allows remote attackers to cause a denial of service (IPv6 traffic disruption) via a     crafted MTU value in an IPv6 Router Advertisement (RA) message, a different vulnerability than     CVE-2015-8215. (CVE-2015-0272)

  - The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support     a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of     service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets.
    (CVE-2015-5156)

  - The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local     users to cause a denial of service (NULL pointer dereference and system crash) or possibly have     unspecified other impact by using a socket that was not properly bound. (CVE-2015-6937)

  - Multiple race conditions in the Advanced Union Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch     patches for the Linux kernel 3.x and 4.x allow local users to cause a denial of service (use-after-free     and BUG) or possibly gain privileges via a (1) madvise or (2) msync system call, related to mm/madvise.c     and mm/msync.c. (CVE-2015-7312)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 14.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-2776-1 advisory.

  - GNOME NetworkManager allows remote attackers to cause a denial of service (IPv6 traffic disruption) via a     crafted MTU value in an IPv6 Router Advertisement (RA) message, a different vulnerability than     CVE-2015-8215. (CVE-2015-0272)

  - The virtnet_probe function in drivers/net/virtio_net.c in the Linux kernel before 4.2 attempts to support     a FRAGLIST feature without proper memory allocation, which allows guest OS users to cause a denial of     service (buffer overflow and memory corruption) via a crafted sequence of fragmented packets.
    (CVE-2015-5156)

  - The __rds_conn_create function in net/rds/connection.c in the Linux kernel through 4.2.3 allows local     users to cause a denial of service (NULL pointer dereference and system crash) or possibly have     unspecified other impact by using a socket that was not properly bound. (CVE-2015-6937)

  - Multiple race conditions in the Advanced Union Filesystem (aufs) aufs3-mmap.patch and aufs4-mmap.patch     patches for the Linux kernel 3.x and 4.x allow local users to cause a denial of service (use-after-free     and BUG) or possibly gain privileges via a (1) madvise or (2) msync system call, related to mm/madvise.c     and mm/msync.c. (CVE-2015-7312)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

This update fixes the CVEs described below.

CVE-2015-0272

It was discovered that NetworkManager would set IPv6 MTUs based on the values received in IPv6 RAs (Router Advertisements), without sufficiently validating these values. A remote attacker could exploit this attack to disable IPv6 connectivity. This has been mitigated by adding validation in the kernel.

CVE-2015-5156

Jason Wang discovered that when a virtio_net device is connected to a bridge in the same VM, a series of TCP packets forwarded through the bridge may cause a heap buffer overflow. A remote attacker could use this to cause a denial of service (crash) or possibly for privilege escalation.

CVE-2015-5364

It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker could exploit this flaw to cause a denial of service using a flood of UDP packets with invalid checksums.

CVE-2015-5366

It was discovered that the Linux kernel does not properly handle invalid UDP checksums. A remote attacker can cause a denial of service against applications that use epoll by injecting a single packet with an invalid checksum.

CVE-2015-5697

A flaw was discovered in the md driver in the Linux kernel leading to an information leak.

CVE-2015-5707

An integer overflow in the SCSI generic driver in the Linux kernel was discovered. A local user with write permission on a SCSI generic device could potentially exploit this flaw for privilege escalation.

CVE-2015-6937

It was found that the Reliable Datagram Sockets (RDS) protocol implementation did not verify that an underlying transport exists when creating a connection. Depending on how a local RDS application initialised its sockets, a remote attacker might be able to cause a denial of service (crash) by sending a crafted packet.

For the oldoldstable distribution (squeeze), these problems have been fixed in version 2.6.32-48squeeze14.

For the oldstable distribution (wheezy), these problems have been fixed in version 3.2.68-1+deb7u4 or earlier.

For the stable distribution (jessie), these problems have been fixed in version 3.16.7-ckt11-1+deb8u4 or earlier.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	Name	Product	Family	Severity
93289	SUSE SLES11 Security Update : kernel (SUSE-SU-2016:2074-1)	Nessus	SuSE Local Security Checks	critical
90884	SUSE SLES11 Security Update : kernel (SUSE-SU-2016:1203-1)	Nessus	SuSE Local Security Checks	critical
89022	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2016:0585-1)	Nessus	SuSE Local Security Checks	high
88605	openSUSE Security Update : the Linux Kernel (openSUSE-2016-136)	Nessus	SuSE Local Security Checks	high
88545	openSUSE Security Update : the Linux Kernel (openSUSE-2016-124)	Nessus	SuSE Local Security Checks	high
87651	SUSE SLED11 / SLES11 Security Update : kernel (SUSE-SU-2015:2339-1)	Nessus	SuSE Local Security Checks	medium
87548	Scientific Linux Security Update : NetworkManager on SL7.x x86_64 (20151119)	Nessus	Scientific Linux Local Security Checks	medium
87495	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2015:2292-1)	Nessus	SuSE Local Security Checks	medium
87214	SUSE SLED12 / SLES12 Security Update : kernel (SUSE-SU-2015:2194-1)	Nessus	SuSE Local Security Checks	medium
87149	CentOS 7 : ModemManager / NetworkManager / NetworkManager-libreswan / network-manager-applet (CESA-2015:2315)	Nessus	CentOS Local Security Checks	medium
87104	SUSE SLED11 / SLES11 Security Update : kernel (SUSE-SU-2015:2108-1)	Nessus	SuSE Local Security Checks	medium
87094	Oracle Linux 7 : NetworkManager (ELSA-2015-2315)	Nessus	Oracle Linux Local Security Checks	medium
86981	RHEL 7 : NetworkManager (RHSA-2015:2315)	Nessus	Red Hat Local Security Checks	medium
86787	Ubuntu 14.04 LTS : Linux kernel (Utopic HWE) vulnerabilities (USN-2797-1)	Nessus	Ubuntu Local Security Checks	high
86783	Ubuntu 12.04 LTS : linux vulnerabilities (USN-2792-1)	Nessus	Ubuntu Local Security Checks	medium
86668	openSUSE Security Update : the Linux Kernel (openSUSE-2015-686)	Nessus	SuSE Local Security Checks	high
86493	Ubuntu 15.04 : linux vulnerabilities (USN-2779-1)	Nessus	Ubuntu Local Security Checks	medium
86492	Ubuntu 14.04 LTS : Linux kernel (Vivid HWE) vulnerabilities (USN-2778-1)	Nessus	Ubuntu Local Security Checks	high
86467	Ubuntu 14.04 LTS : Linux kernel vulnerabilities (USN-2776-1)	Nessus	Ubuntu Local Security Checks	high
86466	Ubuntu 12.04 LTS : linux-lts-trusty vulnerabilities (USN-2775-1)	Nessus	Ubuntu Local Security Checks	medium
86049	Debian DLA-310-1 : linux-2.6 security update	Nessus	Debian Local Security Checks	high

Detections

Analytics

CVE-2015-0272

high

Tenable Plugins

critical

critical

high

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medium

medium

medium

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medium

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medium

high