NULL Pointer Dereference Affecting linux-5.10 package, versions <5.10.149-2~deb10u1


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.04% (5th percentile)

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  • Snyk IDSNYK-DEBIAN10-LINUX510-3091174
  • published22 Jun 2022
  • disclosed31 Aug 2022

Introduced: 22 Jun 2022

CVE-2022-2153  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade Debian:10 linux-5.10 to version 5.10.149-2~deb10u1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream linux-5.10 package and not the linux-5.10 package as distributed by Debian. See How to fix? for Debian:10 relevant fixed versions and status.

A flaw was found in the Linux kernel’s KVM when attempting to set a SynIC IRQ. This issue makes it possible for a misbehaving VMM to write to SYNIC/STIMER MSRs, causing a NULL pointer dereference. This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a kernel oops condition that results in a denial of service.

CVSS Scores

version 3.1