An update for kernel is now available for Red Hat Enterprise Linux 6.4 AdvancedUpdate Support.Red Hat Product Security has rated this update as having a security impact ofImportant.

A Common Vulnerability Scoring System (CVSS) base score, which givesa detailed severity rating, is available for each vulnerability from the CVElink(s) in the References section.
The kernel packages contain the Linux kernel, the core of any Linux operatingsystem.Security Fix(es):* A race condition was found in the way the Linux kernel’s memory subsystemhandled the copy-on-write (COW) breakage of private read-only memory mappings.An unprivileged, local user could use this flaw to gain write access tootherwise read-only memory mappings and thus increase their privileges on thesystem. (CVE-2016-5195, Important)* A flaw was found in the Linux kernel’s keyring handling code: thekey_reject_and_link() function could be forced to free an arbitrary memoryblock.

An attacker could use this flaw to trigger a use-after-free condition onthe system, potentially allowing for privilege escalation. (CVE-2016-4470,Important)Red Hat would like to thank Phil Oester for reporting CVE-2016-5195.

TheCVE-2016-4470 issue was discovered by David Howells (Red Hat).
For details on how to apply this update, which includes the changes described inthis advisory, refer to:https://access.redhat.com/articles/11258The system must be rebooted for this update to take effect.Red Hat Enterprise Linux Server AUS (v. 6.4)

SRPMS:
kernel-2.6.32-358.75.1.el6.src.rpm
    MD5: 51d6b9d37cbdcf53f199f713865716e8SHA-256: 740df836dad8278a46aac340648d32099c182d383a3f0d48ef466e469bee968b
 
x86_64:
kernel-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: abae9b6c9ffd4b9f5525ad4a2374ac0fSHA-256: 8e6181c577bd727f456a7d6ea77ac9853a204397cf6b07bf1388ec124113b851
kernel-debug-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: 31b409f89791ae233c2885ac26f91d7aSHA-256: 34d8b6eb8b009d36e3bf76b8bc9288d7f38f28f8b7c1a46ef2861e3efe260e14
kernel-debug-debuginfo-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: ae2fc5391f3518f08bebae5354c578e9SHA-256: 0f82325cb38a66ed6a8588a7b93cb730caa5a9278073b5ea305b5d8875fbd6cf
kernel-debug-devel-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: 4d5d95078ee37fd8173c2af264cd5deeSHA-256: 822419f37dd3d0270d45fd0a29bf65a60e04673c6c786830ce6222f021ef5824
kernel-debuginfo-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: bfee6133e778518252d8f413eaf04afaSHA-256: c5046f3269761a93d049511b4d6de3132d1d2e53f9062727611431bd41749cda
kernel-debuginfo-common-x86_64-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: 4be841d7a1f7f5f4148c3748f585598dSHA-256: 08d53cba010e399c4ab49c07053cee27dd50b221e93532e87d8168a5c502c3e5
kernel-devel-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: a3b369e00c7ed6c80581005d63491506SHA-256: bc7be5fb5e4552b740c6c69146aab9ad023ca3f34732ae99410b5598a4c7a130
kernel-doc-2.6.32-358.75.1.el6.noarch.rpm
    MD5: ac8fb89b94113bb139be209b4fb7caf1SHA-256: 796d78ffe2eaf51a507b9abefc055036f3063a4e3d94553ed5fb8909635f1aac
kernel-firmware-2.6.32-358.75.1.el6.noarch.rpm
    MD5: e955f5a337794e3c66742954c6206c71SHA-256: 1b14916b79525c6ad4d83618edbdf05af99c0d300d0b8f037c9467c42ed17697
kernel-headers-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: dd98e4c98033e0c1164464bef52810d1SHA-256: f51979830311736ae941aafb0aede4503616e214b8889137fef501d46a109227
perf-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: bde3b59750a84b3b97c53878457711cfSHA-256: 62aab0474d32e3329411f764e7b694d130292a7ed8b3e199a71be3b6ce56a7b1
perf-debuginfo-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: dd3b1acdf53a66af90d96c5273f0f05dSHA-256: 5788ef3808837a1831fbe58e8b7e34e4414153c2e0ab847e1743b984fc5d0707
python-perf-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: 96500ca15f2261b659d69b04c37e3621SHA-256: acc869b8a2d0fc1e0abac9189d1da78b1d96aa785b819408b92dee515186c494
python-perf-debuginfo-2.6.32-358.75.1.el6.x86_64.rpm
    MD5: a61b723cbac7cb19fb9b9f97e6aaef3bSHA-256: 8b8b03cfd8cbabfb78c9e8176ff531756ecc3fa7d47ae91a83e41295fe05b18b
 
(The unlinked packages above are only available from the Red Hat Network)

1341716 – CVE-2016-4470 kernel: Uninitialized variable in request_key handling causes kernel crash in error handling path1384344 – CVE-2016-5195 kernel: mm: privilege escalation via MAP_PRIVATE COW breakage

These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from:

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