CVE-2013-2179

Impact:
Low
Public Date:
2013-06-11
CWE:
CWE-476
Bugzilla:
973695: CVE-2013-2179 xorg-x11-xdm: NULL pointer dereference (DoS) when verifying user credentials in FIPS-140 mode or using glibc >= 2.17

The MITRE CVE dictionary describes this issue as:

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.

Find out more about CVE-2013-2179 from the MITRE CVE dictionary dictionary and NIST NVD.

Statement

Not Vulnerable. This issue does not affect the version of xorg-x11-xdm as shipped with Red Hat Enterprise Linux 5 and 6.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

Base Score 1.9
Base Metrics AV:L/AC:M/Au:N/C:N/I:N/A:P
Access Vector Local
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 6 xorg-x11-xdm Not affected
Red Hat Enterprise Linux 5 xorg-x11-xdm Not affected

Last Modified

CVE description copyright © 2017, The MITRE Corporation

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