Access Restriction Bypass Affecting torvalds/linux package, versions [,3.18.2)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.04% (13th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004437
  • published26 Jan 2022
  • disclosed17 Dec 2014
  • creditUnknown

Introduced: 17 Dec 2014

CVE-2014-8133  (opens in a new tab)
CWE-264  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 3.18.2 or higher.

Overview

Affected versions of this package are vulnerable to Access Restriction Bypass arch/x86/kernel/tls.c in the Thread Local Storage (TLS) implementation in the Linux kernel through 3.18.1 allows local users to bypass the espfix protection mechanism, and consequently makes it easier for local users to bypass the ASLR protection mechanism, via a crafted application that makes a set_thread_area system call and later reads a 16-bit value.

References

CVSS Base Scores

version 3.1