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Test ID:1.3.6.1.4.1.25623.1.1.12.2022.5591.4
Category:Ubuntu Local Security Checks
Title:Ubuntu: Security Advisory (USN-5591-4)
Summary:The remote host is missing an update for the 'linux-aws' package(s) announced via the USN-5591-4 advisory.
Description:Summary:
The remote host is missing an update for the 'linux-aws' package(s) announced via the USN-5591-4 advisory.

Vulnerability Insight:
It was discovered that the virtual terminal driver in the Linux kernel did
not properly handle VGA console font changes, leading to an out-of-bounds
write. A local attacker could use this to cause a denial of service (system
crash) or possibly execute arbitrary code.

Affected Software/OS:
'linux-aws' package(s) on Ubuntu 18.04.

Solution:
Please install the updated package(s).

CVSS Score:
7.2

CVSS Vector:
AV:L/AC:L/Au:N/C:C/I:C/A:C

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2021-33656
https://git.kernel.org/pub/scm/linux/kernel/git/stable/stable-queue.git/tree/releases/5.10.127/vt-drop-old-font-ioctls.patch
https://www.openeuler.org/en/security/cve/detail.html?id=CVE-2021-33656&packageName=kernel
https://lists.debian.org/debian-lts-announce/2022/10/msg00000.html
http://www.openwall.com/lists/oss-security/2022/07/19/3
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