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.
Key facts
- CVSS score
- 4.3 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-310
- EPSS score
- 2.4% (84th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2013-2138)
- Published
- December 27, 2013
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2013-2138 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- x / x display manager
- x / x display manager
References
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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