Amazon Linux 2 Security Advisory: ALAS-2019-1167
Advisory Release Date: 2019-03-07 05:52 Pacific
Advisory Updated Date: 2019-03-08 00:39 Pacific
Severity:
Important
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
Note:
This advisory is applicable to Amazon Linux 2 (AL2) Core repository. Visit this FAQ section for the difference between AL2 Core and AL2 Extras advisories.
Issue Correction:
Run yum update kernel to update your system.
New Packages:
aarch64:
kernel-4.14.104-95.84.amzn2.aarch64
kernel-headers-4.14.104-95.84.amzn2.aarch64
kernel-debuginfo-common-aarch64-4.14.104-95.84.amzn2.aarch64
perf-4.14.104-95.84.amzn2.aarch64
perf-debuginfo-4.14.104-95.84.amzn2.aarch64
python-perf-4.14.104-95.84.amzn2.aarch64
python-perf-debuginfo-4.14.104-95.84.amzn2.aarch64
kernel-tools-4.14.104-95.84.amzn2.aarch64
kernel-tools-devel-4.14.104-95.84.amzn2.aarch64
kernel-tools-debuginfo-4.14.104-95.84.amzn2.aarch64
kernel-devel-4.14.104-95.84.amzn2.aarch64
kernel-debuginfo-4.14.104-95.84.amzn2.aarch64
i686:
kernel-headers-4.14.104-95.84.amzn2.i686
src:
kernel-4.14.104-95.84.amzn2.src
x86_64:
kernel-4.14.104-95.84.amzn2.x86_64
kernel-headers-4.14.104-95.84.amzn2.x86_64
kernel-debuginfo-common-x86_64-4.14.104-95.84.amzn2.x86_64
perf-4.14.104-95.84.amzn2.x86_64
perf-debuginfo-4.14.104-95.84.amzn2.x86_64
python-perf-4.14.104-95.84.amzn2.x86_64
python-perf-debuginfo-4.14.104-95.84.amzn2.x86_64
kernel-tools-4.14.104-95.84.amzn2.x86_64
kernel-tools-devel-4.14.104-95.84.amzn2.x86_64
kernel-tools-debuginfo-4.14.104-95.84.amzn2.x86_64
kernel-devel-4.14.104-95.84.amzn2.x86_64
kernel-debuginfo-4.14.104-95.84.amzn2.x86_64