Access Restriction Bypass Affecting torvalds/linux package, versions [,3.8.4)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.01% (1st percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006581
  • published26 Jan 2022
  • disclosed22 Mar 2013
  • creditUnknown

Introduced: 22 Mar 2013

CVE-2013-0914  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.8.4 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass. The flush_signal_handlers function in kernel/signal.c in the Linux kernel before 3.8.4 preserves the value of the sa_restorer field across an exec operation, which makes it easier for local users to bypass the ASLR protection mechanism via a crafted application containing a sigaction system call.

References

CVSS Base Scores

version 3.1