Denial of Service (DoS) Affecting torvalds/linux package, versions [2.4.0,2.6.20)


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.42% (35th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004107
  • published26 Jan 2022
  • disclosed17 Oct 2006
  • creditUnknown

Introduced: 17 Oct 2006

CVE-2006-5173  (opens in a new tab)
CWE-400  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 2.6.20 or higher.

Overview

Affected versions of this package are vulnerable to Denial of Service (DoS). Linux kernel does not properly save or restore EFLAGS during a context switch, or reset the flags when creating new threads, which allows local users to cause a denial of service (process crash), as demonstrated using a process that sets the Alignment Check flag (EFLAGS 0x40000), which triggers a SIGBUS in other processes that have an unaligned access.

References

CVSS Base Scores

version 3.1