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Vulnerability Details : CVE-2013-2179

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.
Publish Date : 2013-12-26 Last Update Date : 2013-12-27
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- CVSS Scores & Vulnerability Types

CVSS Score
4.3
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 310

- Related OVAL Definitions

Title Definition Id Class Family
NULL pointer crash oval:org.mitre.oval:def:16888 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2013-2179

# Product Type Vendor Product Version Update Edition Language
1 Application X X Display Manager 1.1.10 Version Details Vulnerabilities
2 Application X X Display Manager 1.1.11 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
X X Display Manager 2

- References For CVE-2013-2179

http://lists.opensuse.org/opensuse-updates/2013-07/msg00002.html
SUSE openSUSE-SU-2013:1117
http://cgit.freedesktop.org/xorg/app/xdm/commit/?id=8d1eb5c74413e4c9a21f689fc106949b121c0117 CONFIRM
http://www.openwall.com/lists/oss-security/2013/06/13/8
MLIST [oss-security] 20130613 Re: CVE request for possible NULL ptr deref in XDM when using crypt() from glibc 2.17+
https://bugs.mageia.org/show_bug.cgi?id=10682 CONFIRM

- Metasploit Modules Related To CVE-2013-2179

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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