Cross-site Scripting (XSS) Affecting torvalds/linux package, versions [,2.6.31.1)


Severity

Recommended
0.0
high
0
10

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

Threat Intelligence

EPSS
0.06% (20th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3004650
  • published26 Jan 2022
  • disclosed16 Jul 2009
  • creditUnknown

Introduced: 16 Jul 2009

CVE-2009-1895  (opens in a new tab)
CWE-16  (opens in a new tab)

How to fix?

Upgrade torvalds/linux to version 2.6.31.1 or higher.

Overview

Affected versions of this package are vulnerable to Cross-site Scripting (XSS). The personality subsystem in the Linux kernel before 2.6.31-rc3 has a PER_CLEAR_ON_SETID setting that does not clear the ADDR_COMPAT_LAYOUT and MMAP_PAGE_ZERO flags when executing a setuid or setgid program, which makes it easier for local users to leverage the details of memory usage to (1) conduct NULL pointer dereference attacks, (2) bypass the mmap_min_addr protection mechanism, or (3) defeat address space layout randomization (ASLR).

References

CVSS Base Scores

version 3.1