{"cve":"CVE-2013-2179","nvd":{"published":"2013-12-27T01:55:05.283","modified":"2026-06-16T23:52:53.747","status":"Modified","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.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-310"],"references":["http://cgit.freedesktop.org/xorg/app/xdm/commit/?id=8d1eb5c74413e4c9a21f689fc106949b121c0117","http://lists.opensuse.org/opensuse-updates/2013-07/msg00002.html","http://www.openwall.com/lists/oss-security/2013/06/13/8","https://bugs.mageia.org/show_bug.cgi?id=10682","http://cgit.freedesktop.org/xorg/app/xdm/commit/?id=8d1eb5c74413e4c9a21f689fc106949b121c0117"],"products":["x:x_display_manager"],"source":"nvd","synced_at":"2026-10-19T20:30:15.895642412+00:00"},"epss":{"cve":"CVE-2013-2179","score":0.02437,"percentile":0.84285,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}