Privilege Escalation Affecting torvalds/linux package, versions [,2.6.29.6)


Severity

Recommended
0.0
medium
0
10

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

Threat Intelligence

EPSS
0.06% (21st percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3005021
  • published26 Jan 2022
  • disclosed18 Aug 2009
  • creditUnknown

Introduced: 18 Aug 2009

CVE-2009-2848  (opens in a new tab)
CWE-269  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 2.6.29.6 or higher.

Overview

Affected versions of this package are vulnerable to Privilege Escalation. The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current->clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.

CVSS Base Scores

version 3.1