Improper Input Validation Affecting torvalds/linux package, versions [,2.6.31)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
1.81% (82nd percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006324
  • published26 Jan 2022
  • disclosed27 Jan 2010
  • creditUnknown

Introduced: 27 Jan 2010

CVE-2009-4272  (opens in a new tab)
CWE-20  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 2.6.31 or higher.

Overview

Affected versions of this package are vulnerable to Improper Input Validation. A certain Red Hat patch for net/ipv4/route.c in the Linux kernel 2.6.18 on Red Hat Enterprise Linux (RHEL) 5 allows remote attackers to cause a denial of service (deadlock) via crafted packets that force collisions in the IPv4 routing hash table, and trigger a routing "emergency" in which a hash chain is too long. NOTE: this is related to an issue in the Linux kernel before 2.6.31, when the kernel routing cache is disabled, involving an uninitialized pointer and a panic.

CVSS Base Scores

version 3.1