CVE-2013-2179: x x_display_manager Cryptographic Issues

Vulnerability summary

CVE-2013-2179 is a medium (CVSS 4.3) Cryptographic Issues vulnerability in x x_display_manager. EPSS estimates a 2.44% chance of exploitation in the next 30 days, higher than 84% of scored vulnerabilities. 1 public exploit is recorded.

Timeline

1. 27-12-2013
   PublishedVulnerability first disclosed.
2. 06-08-2024
   Last modifiedVulnerability information updated.

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.

• CWE-310Cryptographic IssuesWeaknesses in this category are related to the design and implementation of data confidentiality and integrity. Frequently these deal with the use of encoding techniques, encryption libraries, and hashing algorithms. The weaknesses in this category could lead to a degradation of the quality data if they are not addressed.