This update fixes the following security issues :

  - A flaw was found in the sctp_icmp_proto_unreachable()     function in the Linux kernel's Stream Control     Transmission Protocol (SCTP) implementation. A remote     attacker could use this flaw to cause a denial of     service. (CVE-2010-4526, Important)

  - A missing boundary check was found in the dvb_ca_ioctl()     function in the Linux kernel's av7110 module. On systems     that use old DVB cards that require the av7110 module, a     local, unprivileged user could use this flaw to cause a     denial of service or escalate their privileges.
    (CVE-2011-0521, Important)

  - A race condition was found in the way the Linux kernel's     InfiniBand implementation set up new connections. This     could allow a remote user to cause a denial of service.
    (CVE-2011-0695, Important)

  - A heap overflow flaw in the iowarrior_write() function     could allow a user with access to an IO-Warrior USB     device, that supports more than 8 bytes per report, to     cause a denial of service or escalate their privileges.
    (CVE-2010-4656, Moderate)

  - A flaw was found in the way the Linux Ethernet bridge     implementation handled certain IGMP (Internet Group     Management Protocol) packets. A local, unprivileged user     on a system that has a network interface in an Ethernet     bridge could use this flaw to crash that system     (CVE-2011-0716, Moderate)

  - A NULL pointer dereference flaw was found in the Generic     Receive Offload (GRO) functionality in the Linux     kernel's networking implementation. If both GRO and     promiscuous mode were enabled on an interface in a     virtual LAN (VLAN), it could result in a denial of     service when a malformed VLAN frame is received on that     interface. (CVE-2011-1478, Moderate)

  - A missing initialization flaw in the Linux kernel could     lead to an information leak. (CVE-2010-3296, Low)

  - A missing security check in the Linux kernel's     implementation of the install_special_mapping() function     could allow a local, unprivileged user to bypass the     mmap_min_addr protection mechanism. (CVE-2010-4346, Low)

  - A logic error in the orinoco_ioctl_set_auth() function     in the Linux kernel's ORiNOCO wireless extensions     support implementation could render TKIP countermeasures     ineffective when it is enabled, as it enabled the card     instead of shutting it down. (CVE-2010-4648, Low)

  - A missing initialization flaw was found in the     ethtool_get_regs() function in the Linux kernel's     ethtool IOCTL handler. A local user who has the     CAP_NET_ADMIN capability could use this flaw to cause an     information leak. (CVE-2010-4655, Low)

  - An information leak was found in the Linux kernel's     task_show_regs() implementation. On IBM S/390 systems, a     local, unprivileged user could use this flaw to read     /proc/[PID]/status files, allowing them to discover the     CPU register values of processes. (CVE-2011-0710, Low)

This update also fixes several bugs.

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

This update of the openSUSE 11.2 kernel fixes lots of security issues.

Following security issues were fixed: CVE-2011-1493: In the rose networking stack, when parsing the FAC_NATIONAL_DIGIS facilities field, it was possible for a remote host to provide more digipeaters than expected, resulting in heap corruption. Check against ROSE_MAX_DIGIS to prevent overflows, and abort facilities parsing on failure.

CVE-2011-1182: Local attackers could send signals to their programs that looked like coming from the kernel, potentially gaining privileges in the context of setuid programs.

CVE-2011-1082: The epoll subsystem in Linux did not prevent users from creating circular epoll file structures, potentially leading to a denial of service (kernel deadlock).

CVE-2011-1163: The code for evaluating OSF partitions (in fs/partitions/osf.c) contained a bug that leaks data from kernel heap memory to userspace for certain corrupted OSF partitions.

CVE-2011-1012: The code for evaluating LDM partitions (in fs/partitions/ldm.c) contained a bug that could crash the kernel for certain corrupted LDM partitions.

CVE-2011-1010: The code for evaluating Mac partitions (in fs/partitions/mac.c) contained a bug that could crash the kernel for certain corrupted Mac partitions.

CVE-2011-1476: Specially crafted requests may be written to /dev/sequencer resulting in an underflow when calculating a size for a copy_from_user() operation in the driver for MIDI interfaces. On x86, this just returns an error, but it could have caused memory corruption on other architectures. Other malformed requests could have resulted in the use of uninitialized variables.

CVE-2011-1477: Due to a failure to validate user-supplied indexes in the driver for Yamaha YM3812 and OPL-3 chips, a specially crafted ioctl request could have been sent to /dev/sequencer, resulting in reading and writing beyond the bounds of heap buffers, and potentially allowing privilege escalation.

CVE-2011-1090: A page allocator issue in NFS v4 ACL handling that could lead to a denial of service (crash) was fixed.

CVE-2010-3880: net/ipv4/inet_diag.c in the Linux kernel did not properly audit INET_DIAG bytecode, which allowed local users to cause a denial of service (kernel infinite loop) via crafted INET_DIAG_REQ_BYTECODE instructions in a netlink message that contains multiple attribute elements, as demonstrated by INET_DIAG_BC_JMP instructions.

CVE-2011-0521: The dvb_ca_ioctl function in drivers/media/dvb/ttpci/av7110_ca.c in the Linux kernel did not check the sign of a certain integer field, which allowed local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a negative value.

CVE-2010-3875: The ax25_getname function in net/ax25/af_ax25.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory by reading a copy of this structure.

CVE-2010-3876: net/packet/af_packet.c in the Linux kernel did not properly initialize certain structure members, which allowed local users to obtain potentially sensitive information from kernel stack memory by leveraging the CAP_NET_RAW capability to read copies of the applicable structures.

CVE-2010-3877: The get_name function in net/tipc/socket.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory by reading a copy of this structure.

CVE-2010-3705: The sctp_auth_asoc_get_hmac function in net/sctp/auth.c in the Linux kernel did not properly validate the hmac_ids array of an SCTP peer, which allowed remote attackers to cause a denial of service (memory corruption and panic) via a crafted value in the last element of this array.

CVE-2011-0711: A stack memory information leak in the xfs FSGEOMETRY_V1 ioctl was fixed.

CVE-2011-0712: Multiple buffer overflows in the caiaq Native Instruments USB audio functionality in the Linux kernel might have allowed attackers to cause a denial of service or possibly have unspecified other impact via a long USB device name, related to (1) the snd_usb_caiaq_audio_init function in sound/usb/caiaq/audio.c and (2) the snd_usb_caiaq_midi_init function in sound/usb/caiaq/midi.c.

CVE-2010-1173: The sctp_process_unk_param function in net/sctp/sm_make_chunk.c in the Linux kernel, when SCTP is enabled, allowed remote attackers to cause a denial of service (system crash) via an SCTPChunkInit packet containing multiple invalid parameters that require a large amount of error data.

CVE-2010-4075: The uart_get_count function in drivers/serial/serial_core.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

CVE-2010-4076: The rs_ioctl function in drivers/char/amiserial.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

CVE-2010-4077: The ntty_ioctl_tiocgicount function in drivers/char/nozomi.c in the Linux kernel did not properly initialize a certain structure member, which allowed local users to obtain potentially sensitive information from kernel stack memory via a TIOCGICOUNT ioctl call.

CVE-2010-4248: Race condition in the __exit_signal function in kernel/exit.c in the Linux kernel allowed local users to cause a denial of service via vectors related to multithreaded exec, the use of a thread group leader in kernel/posix-cpu-timers.c, and the selection of a new thread group leader in the de_thread function in fs/exec.c.

CVE-2010-4243: fs/exec.c in the Linux kernel did not enable the OOM Killer to assess use of stack memory by arrays representing the (1) arguments and (2) environment, which allows local users to cause a denial of service (memory consumption) via a crafted exec system call, aka an 'OOM dodging issue,' a related issue to CVE-2010-3858.

CVE-2010-4648: Fixed cryptographic weakness potentially leaking information to remote (but physically nearby) users in the orinoco wireless driver.

CVE-2010-4527: The load_mixer_volumes function in sound/oss/soundcard.c in the OSS sound subsystem in the Linux kernel incorrectly expected that a certain name field ends with a '\0' character, which allowed local users to conduct buffer overflow attacks and gain privileges, or possibly obtain sensitive information from kernel memory, via a SOUND_MIXER_SETLEVELS ioctl call.

CVE-2010-4668: The blk_rq_map_user_iov function in block/blk-map.c in the Linux kernel allowed local users to cause a denial of service (panic) via a zero-length I/O request in a device ioctl to a SCSI device, related to an unaligned map. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-4163.

CVE-2010-4650: A kernel buffer overflow in the cuse server module was fixed, which might have allowed local privilege escalation. However only CUSE servers could exploit it and /dev/cuse is normally restricted to root.

CVE-2010-4649: Integer overflow in the ib_uverbs_poll_cq function in drivers/infiniband/core/uverbs_cmd.c in the Linux kernel allowed local users to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large value of a certain structure member.

CVE-2010-4346: The install_special_mapping function in mm/mmap.c in the Linux kernel did not make an expected security_file_mmap function call, which allowed local users to bypass intended mmap_min_addr restrictions and possibly conduct NULL pointer dereference attacks via a crafted assembly-language application.

CVE-2010-4529: Integer underflow in the irda_getsockopt function in net/irda/af_irda.c in the Linux kernel on platforms other than x86 allowed local users to obtain potentially sensitive information from kernel heap memory via an IRLMP_ENUMDEVICES getsockopt call.

CVE-2010-4342: The aun_incoming function in net/econet/af_econet.c in the Linux kernel, when Econet is enabled, allowed remote attackers to cause a denial of service (NULL pointer dereference and OOPS) by sending an Acorn Universal Networking (AUN) packet over UDP.

CVE-2010-3849: The econet_sendmsg function in net/econet/af_econet.c in the Linux kernel, when an econet address is configured, allowed local users to cause a denial of service (NULL pointer dereference and OOPS) via a sendmsg call that specifies a NULL value for the remote address field.

CVE-2010-3848: Stack-based buffer overflow in the econet_sendmsg function in net/econet/af_econet.c in the Linux kernel when an econet address is configured, allowed local users to gain privileges by providing a large number of iovec structures.

CVE-2010-3850: The ec_dev_ioctl function in net/econet/af_econet.c in the Linux kernel did not require the CAP_NET_ADMIN capability, which allowed local users to bypass intended access restrictions and configure econet addresses via an SIOCSIFADDR ioctl call.

CVE-2010-3699: The backend driver in Xen 3.x allows guest OS users to cause a denial of service via a kernel thread leak, which prevents the device and guest OS from being shut down or create a zombie domain, causes a hang in zenwatch, or prevents unspecified xm commands from working properly, related to (1) netback, (2) blkback, or (3) blktap.

CVE-2010-4073: The ipc subsystem in the Linux kernel did not initialize certain structures, which allowed local users to obtain potentially sensitive information from kernel stack memory via vectors related to the (1) compat_sys_semctl, (2) compat_sys_msgctl, and (3) compat_sys_shmctl functions in ipc/compat.c; and the (4) compat_sys_mq_open and (5) compat_sys_mq_getsetattr functions in ipc/compat_mq.c.

CVE-2010-4072: The copy_shmid_to_user function in ipc/shm.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory via vectors related to the shmctl system call and the 'old shm interface.'

CVE-2010-4083: The copy_semid_to_user function in ipc/sem.c in the Linux kernel did not initialize a certain structure, which allowed local users to obtain potentially sensitive information from kernel stack memory via a (1) IPC_INFO, (2) SEM_INFO, (3) IPC_STAT, or (4) SEM_STAT command in a semctl system call.

ID	Name	Product	Family	Published	Updated	Severity
61012	Scientific Linux Security Update : kernel on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	high
53740	openSUSE Security Update : kernel (openSUSE-SU-2011:0346-1)	Nessus	SuSE Local Security Checks	5/5/2011	1/14/2021	high

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