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CVE-2013-2179

4.3 · MEDIUM

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…

Published Dec 27, 2013xCWE-310EPSS 2.44%

Overview

CVE-2013-2179 is a medium-severity vulnerability affecting x x_display_manager. It was published on December 27, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories and patches from x. Update x_display_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected products

VendorProductVersionsStatus

References

Refcgit.freedesktop.org/xorg/app/xdm/commit/?id=8d1eb5c74413e4c9a21f689fc106949b121c0117Reflists.opensuse.org/opensuse-updates/2013-07/msg00002.htmlRefwww.openwall.com/lists/oss-security/2013/06/13/8Refbugs.mageia.org/show_bug.cgi?id=10682Refcgit.freedesktop.org/xorg/app/xdm/commit/?id=8d1eb5c74413e4c9a21f689fc106949b121c0117Reflists.opensuse.org/opensuse-updates/2013-07/msg00002.htmlRefwww.openwall.com/lists/oss-security/2013/06/13/8Refbugs.mageia.org/show_bug.cgi?id=10682

How CyberStrike helps

Frequently asked questions

What is CVE-2013-2179?

CVE-2013-2179 is a medium-severity vulnerability affecting x x_display_manager. It was published on December 27, 2013 and has a CVSS 2.0 base score of 4.3 (MEDIUM).

How severe is CVE-2013-2179?

This vulnerability has a CVSS 2.0 base score of 4.3, rated MEDIUM. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2013-2179?

Check the references section for vendor advisories and patches from x. Update x_display_manager to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2013-2179?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2013-2179 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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