Denial of Service (DoS) Affecting torvalds/linux package, versions [,3.2.2)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.87% (74th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006407
  • published26 Jan 2022
  • disclosed3 Jul 2012
  • creditUnknown

Introduced: 3 Jul 2012

CVE-2012-2100  (opens in a new tab)
CWE-189  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.2.2 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). The ext4_fill_flex_info function in fs/ext4/super.c in the Linux kernel before 3.2.2, on the x86 platform and unspecified other platforms, allows user-assisted remote attackers to trigger inconsistent filesystem-groups data and possibly cause a denial of service via a malformed ext4 filesystem containing a super block with a large FLEX_BG group size (aka s_log_groups_per_flex value). NOTE: this vulnerability exists because of an incomplete fix for CVE-2009-4307.

References

CVSS Base Scores

version 3.1