Out-of-Bounds 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
0.04% (12th percentile)

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  • Snyk IDSNYK-UNMANAGED-TORVALDSLINUX-3006508
  • published26 Jan 2022
  • disclosed28 Aug 2009
  • creditUnknown

Introduced: 28 Aug 2009

CVE-2009-2695  (opens in a new tab)
CWE-119  (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 Out-of-Bounds. The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which allows local users to gain privileges by exploiting NULL pointer dereference vulnerabilities, related to (1) the default configuration of the allow_unconfined_mmap_low boolean in SELinux on Red Hat Enterprise Linux (RHEL) 5, (2) an error that causes allow_unconfined_mmap_low to be ignored in the unconfined_t domain, (3) lack of a requirement for the CAP_SYS_RAWIO capability for these mmap operations, and (4) interaction between the mmap_min_addr protection mechanism and certain application programs.

References

CVSS Scores

version 3.1