kernel: keyrings: find_keyring_by_name() can gain the freed keyring

Race condition in the find_keyring_by_name function in security/keys/keyring.c in the Linux kernel 2.6.34-rc5 and earlier allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via keyctl session commands that trigger access to a dead keyring that is undergoing deletion by the key_cleanup function.

The TSB I-TLB load implementation in arch/sparc/kernel/tsb.S in the Linux kernel before 2.6.33 on the SPARC platform does not properly obtain the value of a certain _PAGE_EXEC_4U bit and consequently does not properly implement a non-executable stack, which makes it easier for context-dependent attackers to exploit stack-based buffer overflows via a crafted application.

kernel: vhost: fix length for cross region descriptor

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.

The proc_oom_score function in fs/proc/base.c in the Linux kernel before 2.6.34-rc4 uses inappropriate data structures during selection of a candidate for the OOM killer, which might allow local users to cause a denial of service via unspecified patterns of task creation.

Unspecified vulnerability in HP Systems Insight Manager (SIM) 5.3, 5.3 Update 1, and 6.0 allows remote attackers to obtain sensitive information and modify data via unknown vectors.

kernel: guest crashes on non-EPT machines may crash the host as well

arch/x86/hvm/vmx/vmcs.c in the virtual-machine control structure (VMCS) implementation in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5, when an Intel platform without Extended Page Tables (EPT) functionality is used, accesses VMCS fields without verifying hardware support for these fields, which allows local users to cause a denial of service (host OS crash) by requesting a VMCS dump for a fully virtualized Xen guest.

The btrfs_ioctl_clone function in fs/btrfs/ioctl.c in the btrfs functionality in the Linux kernel 2.6.29 through 2.6.32, and possibly other versions, does not ensure that a cloned file descriptor has been opened for reading, which allows local users to read sensitive information from a write-only file descriptor.

Mathematica 7, when running on Linux, allows local users to overwrite arbitrary files via a symlink attack on (1) files within /tmp/MathLink/ or (2) /tmp/fonts$$.conf.

kernel: drm ioctls infoleak

The drm_ioctl function in drivers/gpu/drm/drm_drv.c in the Direct Rendering Manager (DRM) subsystem in the Linux kernel before 2.6.27.53, 2.6.32.x before 2.6.32.21, 2.6.34.x before 2.6.34.6, and 2.6.35.x before 2.6.35.4 allows local users to obtain potentially sensitive information from kernel memory by requesting a large memory-allocation amount.

kernel: handling of IPv6 temporary addresses

The ipv6_create_tempaddr function in net/ipv6/addrconf.c in the Linux kernel through 3.8 does not properly handle problems with the generation of IPv6 temporary addresses, which allows remote attackers to cause a denial of service (excessive retries and address-generation outage), and consequently obtain sensitive information, via ICMPv6 Router Advertisement (RA) messages.

kernel: gfs2: rename causes kernel panic

The gfs2_dirent_find_space function in fs/gfs2/dir.c in the Linux kernel before 2.6.35 uses an incorrect size value in calculations associated with sentinel directory entries, which allows local users to cause a denial of service (NULL pointer dereference and panic) and possibly have unspecified other impact by renaming a file in a GFS2 filesystem, related to the gfs2_rename function in fs/gfs2/ops_inode.c.

kernel: bluetooth HIDP implementation information disclosure

The hidp_setup_hid function in net/bluetooth/hidp/core.c in the Linux kernel before 3.7.6 does not properly copy a certain name field, which allows local users to obtain sensitive information from kernel memory by setting a long name and making an HIDPCONNADD ioctl call.

IBM WebSphere Application Server (WAS) 6.1 before 6.1.0.47, 7.0 before 7.0.0.29, 8.0 before 8.0.0.6, and 8.5 before 8.5.0.2 on Linux, Solaris, and HP-UX, when a Local OS registry is used, does not properly validate user accounts, which allows remote attackers to bypass intended access restrictions via unspecified vectors.

Google Chrome before 25.0.1364.97 on Windows and Linux, and before 25.0.1364.99 on Mac OS X, does not properly load Native Client (aka NaCl) code, which has unspecified impact and attack vectors.

Integer overflow in the padding implementation in the opus_packet_parse_impl function in src/opus_decoder.c in Opus before 1.0.2, as used in Google Chrome before 25.0.1364.97 on Windows and Linux and before 25.0.1364.99 on Mac OS X and other products, allows remote attackers to cause a denial of service (out-of-bounds read) via a long packet.

icu: Race condition leading to a use-after-free

Race condition in the International Components for Unicode (ICU) functionality in Google Chrome before 25.0.1364.97 on Windows and Linux, and before 25.0.1364.99 on Mac OS X, allows remote attackers to cause a denial of service or possibly have unspecified other impact via unknown vectors.

Kernel: drm/i915: heap writing overflow

Integer overflow in drivers/gpu/drm/i915/i915_gem_execbuffer.c in the i915 driver in the Direct Rendering Manager (DRM) subsystem in the Linux kernel through 3.8.3, as used in Google Chrome OS before 25.0.1364.173 and other products, allows local users to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a crafted application that triggers many relocation copies, and potentially leads to a race condition.

Kernel: sa_restorer information leak

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.

flash-plugin: multiple code execution flaws (APSB13-05)

Buffer overflow in Adobe Flash Player before 10.3.183.63 and 11.x before 11.6.602.168 on Windows, before 10.3.183.61 and 11.x before 11.6.602.167 on Mac OS X, before 10.3.183.61 and 11.x before 11.2.202.270 on Linux, before 11.1.111.43 on Android 2.x and 3.x, and before 11.1.115.47 on Android 4.x; Adobe AIR before 3.6.0.597; and Adobe AIR SDK before 3.6.0.599 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2013-0642, CVE-2013-0645, CVE-2013-1366, CVE-2013-1367, CVE-2013-1368, CVE-2013-1369, CVE-2013-1370, CVE-2013-1372, and CVE-2013-1373.

flash-plugin: multiple code execution flaws (APSB13-05)

Buffer overflow in Adobe Flash Player before 10.3.183.63 and 11.x before 11.6.602.168 on Windows, before 10.3.183.61 and 11.x before 11.6.602.167 on Mac OS X, before 10.3.183.61 and 11.x before 11.2.202.270 on Linux, before 11.1.111.43 on Android 2.x and 3.x, and before 11.1.115.47 on Android 4.x; Adobe AIR before 3.6.0.597; and Adobe AIR SDK before 3.6.0.599 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2013-0642, CVE-2013-0645, CVE-2013-1365, CVE-2013-1367, CVE-2013-1368, CVE-2013-1369, CVE-2013-1370, CVE-2013-1372, and CVE-2013-1373.