Use After Free Affecting torvalds/linux package, versions [,6.3)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-5820007
  • published4 Aug 2023
  • disclosed3 Aug 2023
  • creditUnknown

Introduced: 3 Aug 2023

CVE-2023-4133  (opens in a new tab)
CWE-416  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 6.3 or higher.

Overview

Affected versions of this package are vulnerable to Use After Free. The bug occurs when the cxgb4 device is detaching due to a possible rearming of the flower_stats_timer from the work queue. This flaw allows a local user to crash the system, causing a denial of service condition.

CVSS Base Scores

version 3.1