CVE-2013-2179

NONE EPSS 82.3%
Published Dec 27, 201312y ago · Modified Jun 16, 20262w ago
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Published Dec 27, 2013 12y ago
Last Modified Jun 16, 2026 2w ago

Description

X.Org xdm 1.1.10, 1.1.11, and possibly other versions, when performing authentication using certain implementations of the crypt API function that can return NULL, allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by attempting to log into an account whose password field contains invalid characters, as demonstrated using the crypt function from glibc 2.17 and later with (1) the "!" character in the salt portion of a password field or (2) a password that has been encrypted using DES or MD5 in FIPS-140 mode.

Threat Intelligence

EPSS Exploit Probability
82.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-310

Affected Products 2

VendorProductVersionRange
xx_display_manager1.1.10any
xx_display_manager1.1.11any

References 4

  • cgit.freedesktop.org http://cgit.freedesktop.org/xorg/app/xdm/commit/?id=8d1eb5c74413e4c9a21f689fc106949b121c0117
    ExploitPatch
  • lists.opensuse.org http://lists.opensuse.org/opensuse-updates/2013-07/msg00002.html
  • openwall.com http://www.openwall.com/lists/oss-security/2013/06/13/8
  • bugs.mageia.org https://bugs.mageia.org/show_bug.cgi?id=10682

Remediation

  • cgit.freedesktop.org http://cgit.freedesktop.org/xorg/app/xdm/commit/?id=8d1eb5c74413e4c9a21f689fc106949b121c0117
    ExploitPatch