NULL Pointer Dereference Affecting torvalds/linux package, versions [,3.1)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.08% (25th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006106
  • published26 Jan 2022
  • disclosed29 Aug 2011
  • creditUnknown

Introduced: 29 Aug 2011

CVE-2011-2928  (opens in a new tab)
CWE-476  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.1 or higher.

Overview

Affected versions of this package are vulnerable to NULL Pointer Dereference. The befs_follow_link function in fs/befs/linuxvfs.c in the Linux kernel before 3.1-rc3 does not validate the length attribute of long symlinks, which allows local users to cause a denial of service (incorrect pointer dereference and OOPS) by accessing a long symlink on a malformed Be filesystem.

References

CVSS Base Scores

version 3.1