Synopsis

Important: kernel-rt security, bug fix, and enhancement update

Type/Severity

Security Advisory: Important

Topic

Updated kernel-rt packages that fix one security issue, several bugs, and
add various enhancements are now available for Red Hat Enterprise MRG 2.5.

Red Hat Product Security has rated this update as having Important security
impact. A Common Vulnerability Scoring System (CVSS) base score, which
gives a detailed severity rating, is available from the CVE link in the
References section.

Description

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

• A buffer overflow flaw was found in the way the Linux kernel's Intel
  AES-NI instructions optimized version of the RFC4106 GCM mode decryption
  functionality handled fragmented packets. A remote attacker could use this
  flaw to crash, or potentially escalate their privileges on, a system over a
  connection with an active AEC-GCM mode IPSec security association.
  (CVE-2015-3331, Important)
  

This update provides a build of the kernel-rt package for Red Hat
Enterprise MRG 2.5, which is layered on Red Hat Enterprise Linux 6.
The kernel-rt sources have been updated to include fixes for the following
issues:

• Audit subsystem not resolving path name on directory watches
  
• audit watches do not track correctly after a rename
  
• auditctl output is changed in RHEL 7
  
• megaraid_sas: non-booting system with intel_iommu=on kernel parameter
  
• GFS2: kernel NULL pointer dereference in gfs2_inplace_reserve
  
• Crypto adapter cannot be brought online - affect all HW
  
• crypto/seqiv.c: wrong check of return code from crypto_rng_get_bytes
  
• Backport crypto: sha256_ssse3 - also test for BMI2
  
• Null pointer at team_handle_frame+0x62/0x100 [team]
  
• AES CTR x86_64 "by8" AVX optimization
  
• Intel RDSEED - Fix for entropy counting
  
• Intel SHA1 multi-buffer crypto implementation
  
• Intel SHA1 AVX2 optimization support
  
• mlx4_en: HW timestamp ends up in error queue of socket which does not
  have SO_TIMESTAMPING enabled
  

(BZ#1213945)

All kernel-rt users are advised to upgrade to these updated packages, which
correct these issues and add these enhancements. The system must be
rebooted for this update to take effect.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• MRG Realtime 2 x86_64

Fixes

• BZ - 1213322 - CVE-2015-3331 Kernel: crypto: buffer overruns in RFC4106 implementation using AESNI
• BZ - 1213945 - RFE: rebase the 3.10 kernel-rt

CVEs

• CVE-2015-3331

References

• https://access.redhat.com/security/updates/classification/#important

MRG Realtime 2

SRPM
kernel-rt-3.10.0-229.rt56.151.el6rt.src.rpm	SHA-256: cb83009f5559c399a2a95bcb547bf579e54154c2d4dee3f7162c993c2cdc506d
x86_64
kernel-rt-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 238022322fc1565e8598eae03acc3190081f5028d51db63a401377ef540427ae
kernel-rt-debug-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 1d99bd45f6be6dfe5862a715ec094966203c1b8b873930e105a7b3afc31d28d9
kernel-rt-debug-debuginfo-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 5d85a2e6ecea2839631b78bf48d3d8da40e9b3fc13ad2adee0d9bdd5ecfae09f
kernel-rt-debug-devel-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: f397608a7208deee7ca1f425cd3c0d9a979a36b4bd62716c88bea16d71d0576c
kernel-rt-debuginfo-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 5bc89727e91ffe7ea13cb6c89c01d133994dae4aaf5b9e656bcc13c70ff4302d
kernel-rt-debuginfo-common-x86_64-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 009fe1b71dfe831364675fe9e1b147917c335a4266a9e513cf00c528af0ea0e6
kernel-rt-devel-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 9b4bcb73bbe7bafc1b61c6078fe786ed253c5da335a584801748aa0ff5d0e1d8
kernel-rt-doc-3.10.0-229.rt56.151.el6rt.noarch.rpm	SHA-256: 59257a63bf0305438a60ac716dac54e410501e560b5158db5aa788deb74e972f
kernel-rt-firmware-3.10.0-229.rt56.151.el6rt.noarch.rpm	SHA-256: 8be4b28d9c07110f11d83a35ca4a9669188ae5254c745b094ebc55c2136ed4b9
kernel-rt-trace-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: fed0843a64d9071005260e9d3ee31916db94c84770e2903434dbb3f91b52d70e
kernel-rt-trace-debuginfo-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 9318d0e9a83deaf86366ff76112215973f933ee9b3cb6558472d99365363a296
kernel-rt-trace-devel-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 02aad3f7d0cfbd492b2ded73a1b5656c97f2d1986379c8a4f15e75f1c38d4cf5
kernel-rt-vanilla-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 63dfdbe927ba0a10ad53b8118e309855cdb370df30684f58ef37dd96ae5d53e8
kernel-rt-vanilla-debuginfo-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: 84f1bb844686e2250fa438334c056d37fc973cb7dde4e2725f00a2ec69215007
kernel-rt-vanilla-devel-3.10.0-229.rt56.151.el6rt.x86_64.rpm	SHA-256: fa4b4e4e219b55346cf27ce97537662ef013d1d5146a6d215fa61a890c60c33d