Use After Free Affecting torvalds/linux package, versions [5.2,5.18)


Severity

Recommended
0.0
high
0
10

CVSS assessment made by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.01% (2nd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-2976186
  • published7 Aug 2022
  • disclosed7 Aug 2022
  • creditQiuhao Li (Harbin Institute of Technology), Gaoning Pan (Zhejiang University), Yongkang Jia (Zhejiang University)

Introduced: 7 Aug 2022

CVE-2022-1158  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 5.18 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free due to vm_pgoff being improperly used as the offset to get the page's pfn when updating a guest's page table entry.

CVSS Base Scores

version 3.1