The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application.

The bt_sock_recvmsg function in net/bluetooth/af_bluetooth.c in the Linux kernel before 3.9-rc7 does not properly initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.

The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application.

The ftrace implementation in the Linux kernel before 3.8.8 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the CAP_SYS_ADMIN capability for write access to the (1) set_ftrace_pid or (2) set_graph_function file, and then making an lseek system call.

The rtnl_fill_ifinfo function in net/core/rtnetlink.c in the Linux kernel before 3.8.4 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.

The ip6_sk_dst_check function in net/ipv6/ip6_output.c in the Linux kernel before 3.10 allows local users to cause a denial of service (system crash) by using an AF_INET6 socket for a connection to an IPv4 interface.

The tcp_read_sock function in net/ipv4/tcp.c in the Linux kernel before 2.6.34 does not properly manage skb consumption, which allows local users to cause a denial of service (system crash) via a crafted splice system call for a TCP socket.

The rfcomm_sock_recvmsg function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.

Format string vulnerability in the b43_request_firmware function in drivers/net/wireless/b43/main.c in the Broadcom B43 wireless driver in the Linux kernel through 3.9.4 allows local users to gain privileges by leveraging root access and including format string specifiers in an fwpostfix modprobe parameter, leading to improper construction of an error message.

The (1) key_notify_sa_flush and (2) key_notify_policy_flush functions in net/key/af_key.c in the Linux kernel before 3.10 do not initialize certain structure members, which allows local users to obtain sensitive information from kernel heap memory by reading a broadcast message from the notify interface of an IPSec key_socket.

The vcc_recvmsg function in net/atm/common.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.

The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application containing a sigaction system call.

net/dcb/dcbnl.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.

fs/ext3/super.c in the Linux kernel before 3.8.4 uses incorrect arguments to functions in certain circumstances related to printk input, which allows local users to conduct format-string attacks and possibly gain privileges via a crafted application.

net/ceph/auth_none.c in the Linux kernel through 3.10 allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact via an auth_reply message that triggers an attempted build_request operation.

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-2546 advisory.

  - The mmc_ioctl_cdrom_read_data function in drivers/cdrom/cdrom.c in the Linux kernel through 3.10 allows     local users to obtain sensitive information from kernel memory via a read operation on a malfunctioning     CD-ROM drive. (CVE-2013-2164)

  - The (1) key_notify_sa_flush and (2) key_notify_policy_flush functions in net/key/af_key.c in the Linux     kernel before 3.10 do not initialize certain structure members, which allows local users to obtain     sensitive information from kernel heap memory by reading a broadcast message from the notify interface of     an IPSec key_socket. (CVE-2013-2234)

  - The isofs_export_encode_fh function in fs/isofs/export.c in the Linux kernel before 3.6 does not     initialize a certain structure member, which allows local users to obtain sensitive information from     kernel heap memory via a crafted application. (CVE-2012-6549)

  - The log_prefix function in kernel/printk.c in the Linux kernel 3.x before 3.4.33 does not properly remove     a prefix string from a syslog header, which allows local users to cause a denial of service (buffer     overflow and system crash) by leveraging /dev/kmsg write access and triggering a call_console_drivers     function call. (CVE-2013-1772)

  - The dispatch_discard_io function in drivers/block/xen-blkback/blkback.c in the Xen blkback implementation     in the Linux kernel before 3.10.5 allows guest OS users to cause a denial of service (data loss) via     filesystem write operations on a read-only disk that supports the (1) BLKIF_OP_DISCARD (aka discard or     TRIM) or (2) SCSI UNMAP feature. (CVE-2013-2140)

  - The crypto API in the Linux kernel through 3.9-rc8 does not initialize certain length variables, which     allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or     recvfrom system call, related to the hash_recvmsg function in crypto/algif_hash.c and the skcipher_recvmsg     function in crypto/algif_skcipher.c. (CVE-2013-3076)

  - The ip6_append_data_mtu function in net/ipv6/ip6_output.c in the IPv6 implementation in the Linux kernel     through 3.10.3 does not properly maintain information about whether the IPV6_MTU setsockopt option had     been specified, which allows local users to cause a denial of service (BUG and system crash) via a crafted     application that uses the UDP_CORK option in a setsockopt system call. (CVE-2013-4163)

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

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-2538 advisory.

  - The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value     of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the     ASLR protection mechanism via a crafted application containing a sigaction system call. (CVE-2013-0914)

  - The vcc_recvmsg function in net/atm/common.c in the Linux kernel before 3.9-rc7 does not initialize a     certain length variable, which allows local users to obtain sensitive information from kernel stack memory     via a crafted recvmsg or recvfrom system call. (CVE-2013-3222)

  - The bt_sock_recvmsg function in net/bluetooth/af_bluetooth.c in the Linux kernel before 3.9-rc7 does not     properly initialize a certain length variable, which allows local users to obtain sensitive information     from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3224)

  - The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain     structure member, which allows local users to obtain sensitive information from kernel heap memory via a     crafted application. (CVE-2012-6548)

  - net/dcb/dcbnl.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows     local users to obtain sensitive information from kernel stack memory via a crafted application.
    (CVE-2013-2634)

  - The rtnl_fill_ifinfo function in net/core/rtnetlink.c in the Linux kernel before 3.8.4 does not initialize     a certain structure member, which allows local users to obtain sensitive information from kernel stack     memory via a crafted application. (CVE-2013-2635)

  - Format string vulnerability in the b43_request_firmware function in drivers/net/wireless/b43/main.c in the     Broadcom B43 wireless driver in the Linux kernel through 3.9.4 allows local users to gain privileges by     leveraging root access and including format string specifiers in an fwpostfix modprobe parameter, leading     to improper construction of an error message. (CVE-2013-2852)

  - The rfcomm_sock_recvmsg function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 3.9-rc7 does     not initialize a certain length variable, which allows local users to obtain sensitive information from     kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3225)

  - The ftrace implementation in the Linux kernel before 3.8.8 allows local users to cause a denial of service     (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the     CAP_SYS_ADMIN capability for write access to the (1) set_ftrace_pid or (2) set_graph_function file, and     then making an lseek system call. (CVE-2013-3301)

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

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-2537 advisory.

  - The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value     of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the     ASLR protection mechanism via a crafted application containing a sigaction system call. (CVE-2013-0914)

  - The vcc_recvmsg function in net/atm/common.c in the Linux kernel before 3.9-rc7 does not initialize a     certain length variable, which allows local users to obtain sensitive information from kernel stack memory     via a crafted recvmsg or recvfrom system call. (CVE-2013-3222)

  - The bt_sock_recvmsg function in net/bluetooth/af_bluetooth.c in the Linux kernel before 3.9-rc7 does not     properly initialize a certain length variable, which allows local users to obtain sensitive information     from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3224)

  - The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain     structure member, which allows local users to obtain sensitive information from kernel heap memory via a     crafted application. (CVE-2012-6548)

  - net/dcb/dcbnl.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows     local users to obtain sensitive information from kernel stack memory via a crafted application.
    (CVE-2013-2634)

  - Format string vulnerability in the b43_request_firmware function in drivers/net/wireless/b43/main.c in the     Broadcom B43 wireless driver in the Linux kernel through 3.9.4 allows local users to gain privileges by     leveraging root access and including format string specifiers in an fwpostfix modprobe parameter, leading     to improper construction of an error message. (CVE-2013-2852)

  - The rfcomm_sock_recvmsg function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 3.9-rc7 does     not initialize a certain length variable, which allows local users to obtain sensitive information from     kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3225)

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

This update fixes the following security issues :

  - A flaw was found in the tcp_read_sock() function in the     Linux kernel's IPv4 TCP/IP protocol suite implementation     in the way socket buffers (skb) were handled. A local,     unprivileged user could trigger this issue via a call to     splice(), leading to a denial of service.
    (CVE-2013-2128, Moderate)

  - Information leak flaws in the Linux kernel could allow a     local, unprivileged user to leak kernel memory to     user-space. (CVE-2012-6548, CVE-2013-2634,     CVE-2013-2635, CVE-2013-3222, CVE-2013-3224,     CVE-2013-3225, Low)

  - An information leak was found in the Linux kernel's     POSIX signals implementation. A local, unprivileged user     could use this flaw to bypass the Address Space Layout     Randomization (ASLR) security feature. (CVE-2013-0914,     Low)

  - A format string flaw was found in the ext3_msg()     function in the Linux kernel's ext3 file system     implementation. A local user who is able to mount an     ext3 file system could use this flaw to cause a denial     of service or, potentially, escalate their privileges.
    (CVE-2013-1848, Low)

  - A format string flaw was found in the     b43_do_request_fw() function in the Linux kernel's b43     driver implementation. A local user who is able to     specify the 'fwpostfix' b43 module parameter could use     this flaw to cause a denial of service or, potentially,     escalate their privileges. (CVE-2013-2852, Low)

  - A NULL pointer dereference flaw was found in the Linux     kernel's ftrace and function tracer implementations. A     local user who has the CAP_SYS_ADMIN capability could     use this flaw to cause a denial of service.
    (CVE-2013-3301, Low)

The system must be rebooted for this update to take effect.

Updated kernel packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team 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.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

This update fixes the following security issues :

* A flaw was found in the tcp_read_sock() function in the Linux kernel's IPv4 TCP/IP protocol suite implementation in the way socket buffers (skb) were handled. A local, unprivileged user could trigger this issue via a call to splice(), leading to a denial of service.
(CVE-2013-2128, Moderate)

* Information leak flaws in the Linux kernel could allow a local, unprivileged user to leak kernel memory to user-space. (CVE-2012-6548, CVE-2013-2634, CVE-2013-2635, CVE-2013-3222, CVE-2013-3224, CVE-2013-3225, Low)

* An information leak was found in the Linux kernel's POSIX signals implementation. A local, unprivileged user could use this flaw to bypass the Address Space Layout Randomization (ASLR) security feature.
(CVE-2013-0914, Low)

* A format string flaw was found in the ext3_msg() function in the Linux kernel's ext3 file system implementation. A local user who is able to mount an ext3 file system could use this flaw to cause a denial of service or, potentially, escalate their privileges.
(CVE-2013-1848, Low)

* A format string flaw was found in the b43_do_request_fw() function in the Linux kernel's b43 driver implementation. A local user who is able to specify the 'fwpostfix' b43 module parameter could use this flaw to cause a denial of service or, potentially, escalate their privileges. (CVE-2013-2852, Low)

* A NULL pointer dereference flaw was found in the Linux kernel's ftrace and function tracer implementations. A local user who has the CAP_SYS_ADMIN capability could use this flaw to cause a denial of service. (CVE-2013-3301, Low)

Red Hat would like to thank Kees Cook for reporting CVE-2013-2852.

This update also fixes several bugs. Documentation for these changes will be available shortly from the Technical Notes document linked to in the References section.

Users should upgrade to these updated packages, which contain backported patches to correct these issues. The system must be rebooted for this update to take effect.

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2013-1051 advisory.

  - fs/ext3/super.c in the Linux kernel before 3.8.4 uses incorrect arguments to functions in certain     circumstances related to printk input, which allows local users to conduct format-string attacks and     possibly gain privileges via a crafted application. (CVE-2013-1848)

  - The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value     of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the     ASLR protection mechanism via a crafted application containing a sigaction system call. (CVE-2013-0914)

  - The vcc_recvmsg function in net/atm/common.c in the Linux kernel before 3.9-rc7 does not initialize a     certain length variable, which allows local users to obtain sensitive information from kernel stack memory     via a crafted recvmsg or recvfrom system call. (CVE-2013-3222)

  - The bt_sock_recvmsg function in net/bluetooth/af_bluetooth.c in the Linux kernel before 3.9-rc7 does not     properly initialize a certain length variable, which allows local users to obtain sensitive information     from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3224)

  - The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain     structure member, which allows local users to obtain sensitive information from kernel heap memory via a     crafted application. (CVE-2012-6548)

  - The tcp_read_sock function in net/ipv4/tcp.c in the Linux kernel before 2.6.34 does not properly manage     skb consumption, which allows local users to cause a denial of service (system crash) via a crafted splice     system call for a TCP socket. (CVE-2013-2128)

  - net/dcb/dcbnl.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows     local users to obtain sensitive information from kernel stack memory via a crafted application.
    (CVE-2013-2634)

  - The rtnl_fill_ifinfo function in net/core/rtnetlink.c in the Linux kernel before 3.8.4 does not initialize     a certain structure member, which allows local users to obtain sensitive information from kernel stack     memory via a crafted application. (CVE-2013-2635)

  - Format string vulnerability in the b43_request_firmware function in drivers/net/wireless/b43/main.c in the     Broadcom B43 wireless driver in the Linux kernel through 3.9.4 allows local users to gain privileges by     leveraging root access and including format string specifiers in an fwpostfix modprobe parameter, leading     to improper construction of an error message. (CVE-2013-2852)

  - The rfcomm_sock_recvmsg function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 3.9-rc7 does     not initialize a certain length variable, which allows local users to obtain sensitive information from     kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3225)

  - The ftrace implementation in the Linux kernel before 3.8.8 allows local users to cause a denial of service     (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging the     CAP_SYS_ADMIN capability for write access to the (1) set_ftrace_pid or (2) set_graph_function file, and     then making an lseek system call. (CVE-2013-3301)

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

Multiple vulnerabilities has been found and corrected in the Linux kernel :

The scm_set_cred function in include/net/scm.h in the Linux kernel before 3.8.11 uses incorrect uid and gid values during credentials passing, which allows local users to gain privileges via a crafted application. (CVE-2013-1979)

The nr_recvmsg function in net/netrom/af_netrom.c in the Linux kernel before 3.9-rc7 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3232)

net/tipc/socket.c in the Linux kernel before 3.9-rc7 does not initialize a certain data structure and a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.
(CVE-2013-3235)

The rose_recvmsg function in net/rose/af_rose.c in the Linux kernel before 3.9-rc7 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3234)

The llcp_sock_recvmsg function in net/nfc/llcp/sock.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable and a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3233)

The llc_ui_recvmsg function in net/llc/af_llc.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3231)

The iucv_sock_recvmsg function in net/iucv/af_iucv.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.
(CVE-2013-3229)

The irda_recvmsg_dgram function in net/irda/af_irda.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call.
(CVE-2013-3228)

The caif_seqpkt_recvmsg function in net/caif/caif_socket.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3227)

The rfcomm_sock_recvmsg function in net/bluetooth/rfcomm/sock.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3225)

The bt_sock_recvmsg function in net/bluetooth/af_bluetooth.c in the Linux kernel before 3.9-rc7 does not properly initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3224)

The ax25_recvmsg function in net/ax25/af_ax25.c in the Linux kernel before 3.9-rc7 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3223)

The vcc_recvmsg function in net/atm/common.c in the Linux kernel before 3.9-rc7 does not initialize a certain length variable, which allows local users to obtain sensitive information from kernel stack memory via a crafted recvmsg or recvfrom system call. (CVE-2013-3222)

Integer overflow in the fb_mmap function in drivers/video/fbmem.c in the Linux kernel before 3.8.9, as used in a certain Motorola build of Android 4.1.2 and other products, allows local users to create a read-write memory mapping for the entirety of kernel memory, and consequently gain privileges, via crafted /dev/graphics/fb0 mmap2 system calls, as demonstrated by the Motochopper pwn program.
(CVE-2013-2596)

arch/x86/kernel/cpu/perf_event_intel.c in the Linux kernel before 3.8.9, when the Performance Events Subsystem is enabled, specifies an incorrect bitmask, which allows local users to cause a denial of service (general protection fault and system crash) by attempting to set a reserved bit. (CVE-2013-2146)

The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9 uses an incorrect integer data type, which allows local users to gain privileges via a crafted perf_event_open system call. (CVE-2013-2094)

The ioapic_read_indirect function in virt/kvm/ioapic.c in the Linux kernel through 3.8.4 does not properly handle a certain combination of invalid IOAPIC_REG_SELECT and IOAPIC_REG_WINDOW operations, which allows guest OS users to obtain sensitive information from host OS memory or cause a denial of service (host OS OOPS) via a crafted application. (CVE-2013-1798)

Use-after-free vulnerability in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 allows guest OS users to cause a denial of service (host OS memory corruption) or possibly have unspecified other impact via a crafted application that triggers use of a guest physical address (GPA) in (1) movable or (2) removable memory during an MSR_KVM_SYSTEM_TIME kvm_set_msr_common operation. (CVE-2013-1797)

The kvm_set_msr_common function in arch/x86/kvm/x86.c in the Linux kernel through 3.8.4 does not ensure a required time_page alignment during an MSR_KVM_SYSTEM_TIME operation, which allows guest OS users to cause a denial of service (buffer overflow and host OS memory corruption) or possibly have unspecified other impact via a crafted application. (CVE-2013-1796)

The do_tkill function in kernel/signal.c in the Linux kernel before 3.8.9 does not initialize a certain data structure, which allows local users to obtain sensitive information from kernel memory via a crafted application that makes a (1) tkill or (2) tgkill system call.
(CVE-2013-2141)

Heap-based buffer overflow in the tg3_read_vpd function in drivers/net/ethernet/broadcom/tg3.c in the Linux kernel before 3.8.6 allows physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via crafted firmware that specifies a long string in the Vital Product Data (VPD) data structure. (CVE-2013-1929)

The main function in tools/hv/hv_kvp_daemon.c in hypervkvpd, as distributed in the Linux kernel before 3.8-rc1, allows local users to cause a denial of service (daemon exit) via a crafted application that sends a Netlink message. NOTE: this vulnerability exists because of an incorrect fix for CVE-2012-2669. (CVE-2012-5532)

The udf_encode_fh function in fs/udf/namei.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application. (CVE-2012-6548)

The isofs_export_encode_fh function in fs/isofs/export.c in the Linux kernel before 3.6 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel heap memory via a crafted application. (CVE-2012-6549)

net/dcb/dcbnl.c in the Linux kernel before 3.8.4 does not initialize certain structures, which allows local users to obtain sensitive information from kernel stack memory via a crafted application.
(CVE-2013-2634)

The rtnl_fill_ifinfo function in net/core/rtnetlink.c in the Linux kernel before 3.8.4 does not initialize a certain structure member, which allows local users to obtain sensitive information from kernel stack memory via a crafted application. (CVE-2013-2635)

fs/ext3/super.c in the Linux kernel before 3.8.4 uses incorrect arguments to functions in certain circumstances related to printk input, which allows local users to conduct format-string attacks and possibly gain privileges via a crafted application. (CVE-2013-1848)

The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application containing a sigaction system call. (CVE-2013-0914)

Heap-based buffer overflow in the wdm_in_callback function in drivers/usb/class/cdc-wdm.c in the Linux kernel before 3.8.4 allows physically proximate attackers to cause a denial of service (system crash) or possibly execute arbitrary code via a crafted cdc-wdm USB device. (CVE-2013-1860)

Race condition in the install_user_keyrings function in security/keys/process_keys.c in the Linux kernel before 3.8.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) via crafted keyctl system calls that trigger keyring operations in simultaneous threads. (CVE-2013-1792)

The report API in the crypto user configuration API in the Linux kernel through 3.8.2 uses an incorrect C library function for copying strings, which allows local users to obtain sensitive information from kernel stack memory by leveraging the CAP_NET_ADMIN capability.
(CVE-2013-2546)

The crypto_report_one function in crypto/crypto_user.c in the report API in the crypto user configuration API in the Linux kernel through 3.8.2 does not initialize certain structure members, which allows local users to obtain sensitive information from kernel heap memory by leveraging the CAP_NET_ADMIN capability. (CVE-2013-2547)

The crypto_report_one function in crypto/crypto_user.c in the report API in the crypto user configuration API in the Linux kernel through 3.8.2 uses an incorrect length value during a copy operation, which allows local users to obtain sensitive information from kernel memory by leveraging the CAP_NET_ADMIN capability. (CVE-2013-2548)

The translate_desc function in drivers/vhost/vhost.c in the Linux kernel before 3.7 does not properly handle cross-region descriptors, which allows guest OS users to obtain host OS privileges by leveraging KVM guest OS privileges. (CVE-2013-0311)

Array index error in the __sock_diag_rcv_msg function in net/core/sock_diag.c in the Linux kernel before 3.7.10 allows local users to gain privileges via a large family value in a Netlink message. (CVE-2013-1763)

The __skb_recv_datagram function in net/core/datagram.c in the Linux kernel before 3.8 does not properly handle the MSG_PEEK flag with zero-length data, which allows local users to cause a denial of service (infinite loop and system hang) via a crafted application.
(CVE-2013-0290)

Use-after-free vulnerability in the shmem_remount_fs function in mm/shmem.c in the Linux kernel before 3.7.10 allows local users to gain privileges or cause a denial of service (system crash) by remounting a tmpfs filesystem without specifying a required mpol (aka mempolicy) mount option. (CVE-2013-1767)

The xen_iret function in arch/x86/xen/xen-asm_32.S in the Linux kernel before 3.7.9 on 32-bit Xen paravirt_ops platforms does not properly handle an invalid value in the DS segment register, which allows guest OS users to gain guest OS privileges via a crafted application.
(CVE-2013-0228)

Memory leak in drivers/net/xen-netback/netback.c in the Xen netback functionality in the Linux kernel before 3.7.8 allows guest OS users to cause a denial of service (memory consumption) by triggering certain error conditions. (CVE-2013-0217)

The Xen netback functionality in the Linux kernel before 3.7.8 allows guest OS users to cause a denial of service (loop) by triggering ring pointer corruption. (CVE-2013-0216)

The __tun_chr_ioctl function in drivers/net/tun.c in the Linux kernel before 3.6 does not initialize a certain structure, which allows local users to obtain sensitive information from kernel stack memory via a crafted application. (CVE-2012-6547)

The updated packages provides a solution for these security issues.

Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service, information leak or privilege escalation. The Common Vulnerabilities and Exposures project identifies the following problems :

  - CVE-2012-2121     Benjamin Herrenschmidt and Jason Baron discovered issues     with the IOMMU mapping of memory slots used in KVM     device assignment. Local users with the ability to     assign devices could cause a denial of service due to a     memory page leak.

  - CVE-2012-3552     Hafid Lin reported an issue in the IP networking     subsystem. A remote user can cause a denial of service     (system crash) on servers running applications that set     options on sockets which are actively being processed.

  - CVE-2012-4461     Jon Howell reported a denial of service issue in the KVM     subsystem. On systems that do not support the XSAVE     feature, local users with access to the /dev/kvm     interface can cause a system crash.

  - CVE-2012-4508     Dmitry Monakhov and Theodore Ts'o reported a race     condition in the ext4 filesystem. Local users could gain     access to sensitive kernel memory.

  - CVE-2012-6537     Mathias Krause discovered information leak issues in the     Transformation user configuration interface. Local users     with the CAP_NET_ADMIN capability can gain access to     sensitive kernel memory.

  - CVE-2012-6539     Mathias Krause discovered an issue in the networking     subsystem. Local users on 64-bit systems can gain access     to sensitive kernel memory.

  - CVE-2012-6540     Mathias Krause discovered an issue in the Linux virtual     server subsystem. Local users can gain access to     sensitive kernel memory. Note: this issue does not     affect Debian provided kernels, but may affect custom     kernels built from Debian's linux-source-2.6.32 package.

  - CVE-2012-6542     Mathias Krause discovered an issue in the LLC protocol     support code. Local users can gain access to sensitive     kernel memory.

  - CVE-2012-6544     Mathias Krause discovered issues in the Bluetooth     subsystem. Local users can gain access to sensitive     kernel memory.

  - CVE-2012-6545     Mathias Krause discovered issues in the Bluetooth RFCOMM     protocol support. Local users can gain access to     sensitive kernel memory.

  - CVE-2012-6546     Mathias Krause discovered issues in the ATM networking     support. Local users can gain access to sensitive kernel     memory.

  - CVE-2012-6548     Mathias Krause discovered an issue in the UDF file     system support. Local users can obtain access to     sensitive kernel memory.

  - CVE-2012-6549     Mathias Krause discovered an issue in the isofs file     system support. Local users can obtain access to     sensitive kernel memory.

  - CVE-2013-0349     Anderson Lizardo discovered an issue in the Bluetooth     Human Interface Device Protocol (HIDP) stack. Local     users can obtain access to sensitive kernel memory.

  - CVE-2013-0914     Emese Revfy discovered an issue in the signal     implementation. Local users may be able to bypass the     address space layout randomization (ASLR) facility due     to a leaking of information to child processes.

  - CVE-2013-1767     Greg Thelen reported an issue in the tmpfs virtual     memory filesystem. Local users with sufficient privilege     to mount filesystems can cause a denial of service or     possibly elevated privileges due to a use-after free     defect.

  - CVE-2013-1773     Alan Stern provided a fix for a defect in the     UTF8->UTF16 string conversion facility used by the VFAT     filesystem. A local user could cause a buffer overflow     condition, resulting in a denial of service or     potentially elevated privileges.

  - CVE-2013-1774     Wolfgang Frisch provided a fix for a NULL pointer     dereference defect in the driver for some serial USB     devices from Inside Out Networks. Local users with     permission to access these devices can create a denial     of service (kernel oops) by causing the device to be     removed while it is in use.

  - CVE-2013-1792     Mateusz Guzik of Red Hat EMEA GSS SEG Team discovered a     race condition in the access key retention support in     the kernel. A local user could cause a denial of service     (NULL pointer dereference).

  - CVE-2013-1796     Andrew Honig of Google reported an issue in the KVM     subsystem. A user in a guest operating system could     corrupt kernel memory, resulting in a denial of service.

  - CVE-2013-1798     Andrew Honig of Google reported an issue in the KVM     subsystem. A user in a guest operating system could     cause a denial of service due to a use after-free     defect.

  - CVE-2013-1826     Mathias Krause discovered an issue in the Transformation     (XFRM) user configuration interface of the networking     stack. A user with the CAP_NET_ADMIN capability may be     able to gain elevated privileges.

  - CVE-2013-1860     Oliver Neukum discovered an issue in the USB CDC WCM     Device Management driver. Local users with the ability     to attach devices can cause a denial of service (kernel     crash) or potentially gain elevated privileges.

  - CVE-2013-1928     Kees Cook provided a fix for an information leak in the     VIDEO_SET_SPU_PALETTE ioctl for 32-bit applications     running on a 64-bit kernel. Local users can gain access     to sensitive kernel memory.

  - CVE-2013-1929     Oded Horovitz and Brad Spengler reported an issue in the     device driver for Broadcom Tigon3 based gigabit     Ethernet. Users with the ability to attach untrusted     devices can create an overflow condition, resulting in a     denial of service or elevated privileges.

  - CVE-2013-2015     Theodore Ts'o provided a fix for an issue in the ext4     filesystem. Local users with the ability to mount a     specially crafted filesystem can cause a denial of     service (infinite loop).

  - CVE-2013-2634     Mathias Krause discovered a few issues in the Data     Center Bridging (DCB) netlink interface. Local users can     gain access to sensitive kernel memory.

  - CVE-2013-3222     Mathias Krause discovered an issue in the Asynchronous     Transfer Mode (ATM) protocol support. Local users can     gain access to sensitive kernel memory.

  - CVE-2013-3223     Mathias Krause discovered an issue in the Amateur Radio     AX.25 protocol support. Local users can gain access to     sensitive kernel memory.

  - CVE-2013-3224     Mathias Krause discovered an issue in the Bluetooth     subsystem. Local users can gain access to sensitive     kernel memory.

  - CVE-2013-3225     Mathias Krause discovered an issue in the Bluetooth     RFCOMM protocol support. Local users can gain access to     sensitive kernel memory.

  - CVE-2013-3228     Mathias Krause discovered an issue in the IrDA     (infrared) subsystem support. Local users can gain     access to sensitive kernel memory.

  - CVE-2013-3229     Mathias Krause discovered an issue in the IUCV support     on s390 systems. Local users can gain access to     sensitive kernel memory.

  - CVE-2013-3231     Mathias Krause discovered an issue in the ANSI/IEEE     802.2 LLC type 2 protocol support. Local users can gain     access to sensitive kernel memory.

  - CVE-2013-3234     Mathias Krause discovered an issue in the Amateur Radio     X.25 PLP (Rose) protocol support. Local users can gain     access to sensitive kernel memory.

  - CVE-2013-3235     Mathias Krause discovered an issue in the Transparent     Inter Process Communication (TIPC) protocol support.
    Local users can gain access to sensitive kernel memory.

Mathias Krause discovered an information leak in the Linux kernel's UDF file system implementation. A local user could exploit this flaw to examine some of the kernel's heap memory. (CVE-2012-6548)

Mathias Krause discovered an information leak in the Linux kernel's ISO 9660 CDROM file system driver. A local user could exploit this flaw to examine some of the kernel's heap memory. (CVE-2012-6549)

An integer overflow was discovered in the Direct Rendering Manager (DRM) subsystem for the i915 video driver in the Linux kernel. A local user could exploit this flaw to cause a denial of service (crash) or potentially escalate privileges. (CVE-2013-0913)

Andrew Honig discovered a flaw in guest OS time updates in the Linux kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could exploit this flaw to cause a denial of service (crash host system) or potential escalate privilege to the host kernel level.
(CVE-2013-1796)

Andrew Honig discovered a use after free error in guest OS time updates in the Linux kernel;s KVM (Kernel-based Virtual Machine). A privileged guest user could exploit this flaw to escalate privilege to the host kernel level. (CVE-2013-1797)

Andrew Honig reported a flaw in the way KVM (Kernel-based Virtual Machine) emulated the IOAPIC. A privileged guest user could exploit this flaw to read host memory or cause a denial of service (crash the host). (CVE-2013-1798)

A format-string bug was discovered in the Linux kernel's ext3 filesystem driver. A local user could exploit this flaw to possibly escalate privileges on the system. (CVE-2013-1848)

A buffer overflow was discovered in the Linux Kernel's USB subsystem for devices reporting the cdc-wdm class. A specially crafted USB device when plugged-in could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2013-1860)

An information leak in the Linux kernel's dcb netlink interface was discovered. A local user could obtain sensitive information by examining kernel stack memory. (CVE-2013-2634)

A kernel stack information leak was discovered in the RTNETLINK component of the Linux kernel. A local user could read sensitive information from the kernel stack. (CVE-2013-2635).

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.

Mathias Krause discovered an information leak in the Linux kernel's UDF file system implementation. A local user could exploit this flaw to examine some of the kernel's heap memory. (CVE-2012-6548)

Mathias Krause discovered an information leak in the Linux kernel's ISO 9660 CDROM file system driver. A local user could exploit this flaw to examine some of the kernel's heap memory. (CVE-2012-6549)

An integer overflow was discovered in the Direct Rendering Manager (DRM) subsystem for the i915 video driver in the Linux kernel. A local user could exploit this flaw to cause a denial of service (crash) or potentially escalate privileges. (CVE-2013-0913)

Andrew Honig discovered a flaw in guest OS time updates in the Linux kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could exploit this flaw to cause a denial of service (crash host system) or potentially escalate privilege to the host kernel level.
(CVE-2013-1796)

Andrew Honig discovered a use after free error in guest OS time updates in the Linux kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could exploit this flaw to escalate privilege to the host kernel level. (CVE-2013-1797)

Andrew Honig reported a flaw in the way KVM (Kernel-based Virtual Machine) emulated the IOAPIC. A privileged guest user could exploit this flaw to read host memory or cause a denial of service (crash the host). (CVE-2013-1798)

A format-string bug was discovered in the Linux kernel's ext3 filesystem driver. A local user could exploit this flaw to possibly escalate privileges on the system. (CVE-2013-1848)

A buffer overflow was discovered in the Linux Kernel's USB subsystem for devices reporting the cdc-wdm class. A specially crafted USB device when plugged-in could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2013-1860)

An information leak in the Linux kernel's dcb netlink interface was discovered. A local user could obtain sensitive information by examining kernel stack memory. (CVE-2013-2634)

A kernel stack information leak was discovered in the RTNETLINK component of the Linux kernel. A local user could read sensitive information from the kernel stack. (CVE-2013-2635).

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.

Mathias Krause discovered an information leak in the Linux kernel's getsockname implementation for Logical Link Layer (llc) sockets. A local user could exploit this flaw to examine some of the kernel's stack memory. (CVE-2012-6542)

Mathias Krause discovered information leaks in the Linux kernel's Bluetooth Logical Link Control and Adaptation Protocol (L2CAP) implementation. A local user could exploit these flaws to examine some of the kernel's stack memory. (CVE-2012-6544)

Mathias Krause discovered information leaks in the Linux kernel's Bluetooth RFCOMM protocol implementation. A local user could exploit these flaws to examine parts of kernel memory. (CVE-2012-6545)

Mathias Krause discovered information leaks in the Linux kernel's Asynchronous Transfer Mode (ATM) networking stack. A local user could exploit these flaws to examine some parts of kernel memory.
(CVE-2012-6546)

Mathias Krause discovered an information leak in the Linux kernel's UDF file system implementation. A local user could exploit this flaw to examine some of the kernel's heap memory. (CVE-2012-6548)

Andrew Jones discovered a flaw with the xen_iret function in Linux kernel's Xen virtualizeation. In the 32-bit Xen paravirt platform an unprivileged guest OS user could exploit this flaw to cause a denial of service (crash the system) or gain guest OS privilege.
(CVE-2013-0228)

An information leak was discovered in the Linux kernel's Bluetooth stack when HIDP (Human Interface Device Protocol) support is enabled.
A local unprivileged user could exploit this flaw to cause an information leak from the kernel. (CVE-2013-0349)

A flaw was discovered in the Edgeort USB serial converter driver when the device is disconnected while it is in use. A local user could exploit this flaw to cause a denial of service (system crash).
(CVE-2013-1774)

Andrew Honig discovered a flaw in guest OS time updates in the Linux kernel's KVM (Kernel-based Virtual Machine). A privileged guest user could exploit this flaw to cause a denial of service (crash host system) or potential escalate privilege to the host kernel level.
(CVE-2013-1796).

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.

ID	Name	Product	Family	Severity
83611	SUSE SLES11 Security Update : kernel (SUSE-SU-2014:0287-1)	Nessus	SuSE Local Security Checks	high
70222	Amazon Linux AMI : kernel (ALAS-2013-218)	Nessus	Amazon Linux Local Security Checks	medium
69942	Oracle Linux 5 / 6 : Unbreakable Enterprise Kernel (ELSA-2013-2546)	Nessus	Oracle Linux Local Security Checks	high
68978	Oracle Linux 5 / 6 : unbreakable enterprise kernel (ELSA-2013-2538)	Nessus	Oracle Linux Local Security Checks	high
68977	Oracle Linux 5 / 6 : unbreakable enterprise kernel (ELSA-2013-2537)	Nessus	Oracle Linux Local Security Checks	medium
68945	Scientific Linux Security Update : kernel on SL6.x i386/x86_64 (20130716)	Nessus	Scientific Linux Local Security Checks	medium
68940	CentOS 6 : kernel (CESA-2013:1051)	Nessus	CentOS Local Security Checks	medium
68921	RHEL 6 : kernel (RHSA-2013:1051)	Nessus	Red Hat Local Security Checks	medium
68920	Oracle Linux 6 : kernel (ELSA-2013-1051)	Nessus	Oracle Linux Local Security Checks	medium
66975	Mandriva Linux Security Advisory : kernel (MDVSA-2013:176)	Nessus	Mandriva Local Security Checks	high
66431	Debian DSA-2668-1 : linux-2.6 - privilege escalation/denial of service/information leak	Nessus	Debian Local Security Checks	medium
66344	SuSE 11.2 Security Update : Linux kernel (SAT Patch Numbers 7667 / 7669 / 7675)	Nessus	SuSE Local Security Checks	high
66302	Ubuntu 12.10 : linux vulnerabilities (USN-1813-1)	Nessus	Ubuntu Local Security Checks	high
66292	Ubuntu 12.04 LTS : linux-lts-quantal vulnerabilities (USN-1812-1)	Nessus	Ubuntu Local Security Checks	high
66291	Ubuntu 12.04 LTS : linux vulnerabilities (USN-1809-1)	Nessus	Ubuntu Local Security Checks	high
66232	Ubuntu 10.04 LTS : linux-ec2 vulnerabilities (USN-1808-1)	Nessus	Ubuntu Local Security Checks	medium
66171	Ubuntu 10.04 LTS : linux vulnerabilities (USN-1805-1)	Nessus	Ubuntu Local Security Checks	medium

Detections

Analytics

CVE-2012-6548

medium

Tenable Plugins

high

medium

high

high

medium

medium

medium

medium

medium

high

medium

high

high

high

high

medium

medium