ALAS-2019-1167


Amazon Linux AMI Security Advisory: ALAS-2019-1167
Advisory Release Date: 2019-03-25 23:18 Pacific
Severity: Important
References: CVE-2019-8912 

Issue Overview:

In the Linux kernel af_alg_release() in crypto/af_alg.c neglects to set a NULL value for a certain structure member, which leads to a use-after-free (UAF) in sockfs_setattr. A local attacker can use this flaw to escalate privileges and take control of the system. (CVE-2019-8912 )


Affected Packages:

kernel


Issue Correction:
Run yum update kernel to update your system.

New Packages:
i686:
    kernel-debuginfo-common-i686-4.14.104-78.84.amzn1.i686
    kernel-tools-devel-4.14.104-78.84.amzn1.i686
    kernel-devel-4.14.104-78.84.amzn1.i686
    perf-4.14.104-78.84.amzn1.i686
    kernel-4.14.104-78.84.amzn1.i686
    kernel-headers-4.14.104-78.84.amzn1.i686
    perf-debuginfo-4.14.104-78.84.amzn1.i686
    kernel-tools-debuginfo-4.14.104-78.84.amzn1.i686
    kernel-debuginfo-4.14.104-78.84.amzn1.i686
    kernel-tools-4.14.104-78.84.amzn1.i686

src:
    kernel-4.14.104-78.84.amzn1.src

x86_64:
    perf-debuginfo-4.14.104-78.84.amzn1.x86_64
    kernel-debuginfo-common-x86_64-4.14.104-78.84.amzn1.x86_64
    kernel-headers-4.14.104-78.84.amzn1.x86_64
    kernel-devel-4.14.104-78.84.amzn1.x86_64
    kernel-tools-debuginfo-4.14.104-78.84.amzn1.x86_64
    perf-4.14.104-78.84.amzn1.x86_64
    kernel-debuginfo-4.14.104-78.84.amzn1.x86_64
    kernel-4.14.104-78.84.amzn1.x86_64
    kernel-tools-4.14.104-78.84.amzn1.x86_64
    kernel-tools-devel-4.14.104-78.84.amzn1.x86_64