Out-of-bounds Write Affecting qemu-arm package, versions <4.2.1-11.16.3


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.04% (6th percentile)

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  • Snyk IDSNYK-SLES152-QEMUARM-2682984
  • published14 Apr 2022
  • disclosed16 Apr 2021

Introduced: 16 Apr 2021

CVE-2020-27821  (opens in a new tab)
CWE-787  (opens in a new tab)

How to fix?

Upgrade SLES:15.2 qemu-arm to version 4.2.1-11.16.3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream qemu-arm package and not the qemu-arm package as distributed by SLES. See How to fix? for SLES:15.2 relevant fixed versions and status.

A flaw was found in the memory management API of QEMU during the initialization of a memory region cache. This issue could lead to an out-of-bounds write access to the MSI-X table while performing MMIO operations. A guest user may abuse this flaw to crash the QEMU process on the host, resulting in a denial of service. This flaw affects QEMU versions prior to 5.2.0.

CVSS Scores

version 3.1