Access Restriction Bypass Affecting torvalds/linux package, versions [,2.6.27.22)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.08% (26th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006619
  • published26 Jan 2022
  • disclosed22 Apr 2009
  • creditUnknown

Introduced: 22 Apr 2009

CVE-2009-1338  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 2.6.27.22 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. The kill_something_info function in kernel/signal.c in the Linux kernel before 2.6.28 does not consider PID namespaces when processing signals directed to PID -1, which allows local users to bypass the intended namespace isolation, and send arbitrary signals to all processes in all namespaces, via a kill command.

References

CVSS Base Scores

version 3.1