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.

CVSS v2.0 4.3 MEDIUM

4.3^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 2.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References

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

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:x:x_display_manager:1.1.11:::::::*
	cpe:2.3:a:x:x_display_manager:1.1.10:::::::*

Information

Published : 2013-12-26 17:55

Updated : 2013-12-27 08:00

NVD link : CVE-2013-2179

Mitre link : CVE-2013-2179

JSON object : View

CWE

CWE-310

Cryptographic Issues

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Products Affected

x

x_display_manager

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