Out-of-Bounds Affecting gpg/libksba package, versions [0,1.3.3)


Severity

Recommended
0.0
high
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
3.28% (89th percentile)

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  • Snyk IDSNYK-UNMANAGED-GPGLIBKSBA-2364887
  • published26 Jan 2022
  • disclosed13 Jun 2016
  • creditUnknown

Introduced: 13 Jun 2016

CVE-2016-4356  (opens in a new tab)
CWE-119  (opens in a new tab)

How to fix?

Upgrade gpg/libksba to version 1.3.3 or higher.

Overview

Affected versions of this package are vulnerable to Out-of-Bounds. The append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.3 allows remote attackers to cause a denial of service (out-of-bounds read) by clearing the high bit of the byte after invalid utf-8 encoded data.

CVSS Base Scores

version 3.1