SUSE-SU-2018:0584-1: important: Security update for the Linux Kernel (Live Patch 11 for SLE 12 SP2)

\n\n SUSE Security Update: Security update for the Linux Kernel (Live Patch 11 for SLE 12 SP2)
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Announcement ID: SUSE-SU-2018:0584-1
Rating: important
References: #1077268 #1077404
Cross-References: CVE-2017-18075
Affected Products:
SUSE Linux Enterprise Live Patching 12
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An update that solves one vulnerability and has one errata
is now available.

Description:

This update for the Linux Kernel 4.4.74-92_32 fixes several issues.

The following security issue was fixed:

– CVE-2017-18075: crypto/pcrypt.c in the Linux kernel mishandled freeing
instances, allowing a local user able to access the AF_ALG-based AEAD
interface (CONFIG_CRYPTO_USER_API_AEAD) and pcrypt
(CONFIG_CRYPTO_PCRYPT) to cause a denial of service (kfree of an
incorrect pointer) or possibly have unspecified other impact by
executing a crafted sequence of system calls (bsc#1077404).

Non security issue fixed:

– btrfs: account for pinned bytes in should_alloc_chunk (bsc#1077268)

Patch Instructions:

To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product:

– SUSE Linux Enterprise Live Patching 12:

zypper in -t patch SUSE-SLE-Live-Patching-12-2018-390=1

To bring your system up-to-date, use “zypper patch”.

Package List:

– SUSE Linux Enterprise Live Patching 12 (x86_64):

kgraft-patch-4_4_74-92_32-default-7-2.1

References:

https://www.suse.com/security/cve/CVE-2017-18075.html
https://bugzilla.suse.com/1077268
https://bugzilla.suse.com/1077404


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