This kernel update for the SUSE Linux Enterprise 10 SP3 kernel fixes several security issues and bugs.

The following security issues were fixed :

  - Multiple integer overflows in the snd_ctl_new function     in sound/core/control.c in the Linux kernel before     2.6.36-rc5-next-20100929 allow local users to cause a     denial of service (heap memory corruption) or possibly     have unspecified other impact via a crafted (1)     SNDRV_CTL_IOCTL_ELEM_ADD or (2)     SNDRV_CTL_IOCTL_ELEM_REPLACE ioctl call. (CVE-2010-3442)

  - Integer signedness error in the pkt_find_dev_from_minor     function in drivers/block/pktcdvd.c in the Linux kernel     before 2.6.36-rc6 allows local users to obtain sensitive     information from kernel memory or cause a denial of     service (invalid pointer dereference and system crash)     via a crafted index value in a PKT_CTRL_CMD_STATUS ioctl     call. (CVE-2010-3437)

  - Uninitialized stack memory disclosure in the     FBIOGET_VBLANK ioctl in the sis and ivtv drivers could     leak kernel memory to userspace. (CVE-2010-4078)

  - Uninitialized stack memory disclosure in the rme9652     ALSA driver could leak kernel memory to userspace.
    (CVE-2010-4080 / CVE-2010-4081)

  - Uninitialized stack memory disclosure in the SystemV IPC     handling functions could leak kernel memory to     userspace. (CVE-2010-4073 / CVE-2010-4072 /     CVE-2010-4083)

  - Integer overflow in the do_io_submit function in     fs/aio.c in the Linux kernel allowed local users to     cause a denial of service or possibly have unspecified     other impact via crafted use of the io_submit system     call. (CVE-2010-3067)

  - Multiple integer signedness errors in net/rose/af_rose.c     in the Linux kernel allowed local users to cause a     denial of service (heap memory corruption) or possibly     have unspecified other impact via a rose_getname     function call, related to the rose_bind and rose_connect     functions. (CVE-2010-3310)

  - The xfs_swapext function in fs/xfs/xfs_dfrag.c in the     Linux kernel did not properly check the file descriptors     passed to the SWAPEXT ioctl, which allowed local users     to leverage write access and obtain read access by     swapping one file into another file. (CVE-2010-2226)

  - fs/jfs/xattr.c in the Linux kernel did not properly     handle a certain legacy format for storage of extended     attributes, which might have allowed local users by     bypass intended xattr namespace restrictions via an     'os2.' substring at the beginning of a name.
    (CVE-2010-2946)

  - The actions implementation in the network queueing     functionality in the Linux kernel did not properly     initialize certain structure members when performing     dump operations, which allowed local users to obtain     potentially sensitive information from kernel memory via     vectors related to (1) the tcf_gact_dump function in     net/sched/act_gact.c, (2) the tcf_mirred_dump function     in net/sched/act_mirred.c, (3) the tcf_nat_dump function     in net/sched/act_nat.c, (4) the tcf_simp_dump function     in net/sched/act_simple.c, and (5) the tcf_skbedit_dump     function in net/sched/act_skbedit.c. (CVE-2010-2942)

  - fs/cifs/cifssmb.c in the CIFS implementation in the     Linux kernel allowed remote attackers to cause a denial     of service (panic) via an SMB response packet with an     invalid CountHigh value, as demonstrated by a response     from an OS/2 server, related to the CIFSSMBWrite and     CIFSSMBWrite2 functions. (CVE-2010-2248)

  - A 32bit vs 64bit integer mismatch in gdth_ioctl_alloc     could lead to memory corruption in the GDTH driver.
    (CVE-2010-4157)

  - A remote (or local) attacker communicating over X.25     could cause a kernel panic by attempting to negotiate     malformed facilities. (CVE-2010-4164)

  - A missing lock prefix in the x86 futex code could be     used by local attackers to cause a denial of service.
    (CVE-2010-3086)

  - A memory information leak in berkely packet filter rules     allowed local attackers to read uninitialized memory of     the kernel stack. (CVE-2010-4158)

  - A local denial of service in the blockdevice layer was     fixed. (CVE-2010-4162)

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2010:0842 advisory.

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

    This update fixes the following security issues:

    * Missing sanity checks in the Intel i915 driver in the Linux kernel could     allow a local, unprivileged user to escalate their privileges.
    (CVE-2010-2962, Important)

    * compat_alloc_user_space() in the Linux kernel 32/64-bit compatibility     layer implementation was missing sanity checks. This function could be     abused in other areas of the Linux kernel if its length argument can be     controlled from user-space. On 64-bit systems, a local, unprivileged user     could use this flaw to escalate their privileges. (CVE-2010-3081,     Important)

    * A buffer overflow flaw in niu_get_ethtool_tcam_all() in the niu Ethernet     driver in the Linux kernel, could allow a local user to cause a denial of     service or escalate their privileges. (CVE-2010-3084, Important)

    * A flaw in the IA32 system call emulation provided in 64-bit Linux kernels     could allow a local user to escalate their privileges. (CVE-2010-3301,     Important)

    * A flaw in sctp_packet_config() in the Linux kernel's Stream Control     Transmission Protocol (SCTP) implementation could allow a remote attacker     to cause a denial of service. (CVE-2010-3432, Important)

    * A missing integer overflow check in snd_ctl_new() in the Linux kernel's     sound subsystem could allow a local, unprivileged user on a 32-bit system     to cause a denial of service or escalate their privileges. (CVE-2010-3442,     Important)

    * A flaw was found in sctp_auth_asoc_get_hmac() in the Linux kernel's SCTP     implementation. When iterating through the hmac_ids array, it did not reset     the last id element if it was out of range. This could allow a remote     attacker to cause a denial of service. (CVE-2010-3705, Important)

    * A function in the Linux kernel's Reliable Datagram Sockets (RDS) protocol     implementation was missing sanity checks, which could allow a local,     unprivileged user to escalate their privileges. (CVE-2010-3904, Important)

    * A flaw in drm_ioctl() in the Linux kernel's Direct Rendering Manager     (DRM) implementation could allow a local, unprivileged user to cause an     information leak. (CVE-2010-2803, Moderate)

    * It was found that wireless drivers might not always clear allocated     buffers when handling a driver-specific IOCTL information request. A local     user could trigger this flaw to cause an information leak. (CVE-2010-2955,     Moderate)

    * A NULL pointer dereference flaw in ftrace_regex_lseek() in the Linux     kernel's ftrace implementation could allow a local, unprivileged user to     cause a denial of service. Note: The debugfs file system must be mounted     locally to exploit this issue. It is not mounted by default.
    (CVE-2010-3079, Moderate)

    * A flaw in the Linux kernel's packet writing driver could be triggered     via the PKT_CTRL_CMD_STATUS IOCTL request, possibly allowing a local,     unprivileged user with access to /dev/pktcdvd/control to cause an     information leak. Note: By default, only users in the cdrom group have     access to /dev/pktcdvd/control. (CVE-2010-3437, Moderate)

    * A flaw was found in the way KVM (Kernel-based Virtual Machine) handled     the reloading of fs and gs segment registers when they had invalid     selectors. A privileged host user with access to /dev/kvm could use this     flaw to crash the host. (CVE-2010-3698, Moderate)

    Red Hat would like to thank Kees Cook for reporting CVE-2010-2962 and     CVE-2010-2803; Ben Hawkes for reporting CVE-2010-3081 and CVE-2010-3301;
    Dan Rosenberg for reporting CVE-2010-3442, CVE-2010-3705, CVE-2010-3904,     and CVE-2010-3437; and Robert Swiecki for reporting CVE-2010-3079.

    This update also fixes several bugs. Documentation for these bug fixes 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.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

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

ID	Name	Product	Family	Published	Updated	Severity
51158	SuSE 10 Security Update : the Linux kernel (ZYPP Patch Number 7257)	Nessus	SuSE Local Security Checks	12/14/2010	1/14/2021	high
50629	RHEL 6 : kernel (RHSA-2010:0842)	Nessus	Red Hat Local Security Checks	11/18/2010	4/14/2025	high

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