CVE-2013-2179

Summary

CVECVE-2013-2179
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2013-12-27 01:55:05 UTC
Updated2026-04-29 01:13:23 UTC
DescriptionX.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.

Risk And Classification

Primary CVSS: v2.0 4.3 from [email protected]

AV:N/AC:M/Au:N/C:N/I:N/A:P

EPSS: 0.007580000 probability, percentile 0.733910000 (date 2026-04-30)

Problem Types: CWE-310 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial

AV:N/AC:M/Au:N/C:N/I:N/A:P

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application X X Display Manager 1.1.10 All All All
Application X X Display Manager 1.1.11 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
openSUSE-SU-2013:1117-1: moderate: xdm: fixed NULL pointer crash af854a3a-2127-422b-91ae-364da2661108 lists.opensuse.org
oss-security - Re: CVE request for possible NULL ptr deref in XDM when using crypt() from glibc 2.17+ af854a3a-2127-422b-91ae-364da2661108 www.openwall.com
xorg/app/xdm - X Display Manager / XDMCP server (mirrored from https://gitlab.freedesktop.org/xorg/app/xdm) af854a3a-2127-422b-91ae-364da2661108 cgit.freedesktop.org Exploit, Patch
10682 – xdm new security issue CVE-2013-2179 af854a3a-2127-422b-91ae-364da2661108 bugs.mageia.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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