kbrain

CVE-2013-4122

MEDIUM · CVSS 4.3EPSS 3.6%EU EUVD

Cyrus SASL 2.1.23, 2.1.26, and earlier does not properly handle when a NULL value is returned upon an error by the crypt function as implemented in glibc 2.17 and later, which allows remote attackers to cause a denial of service (thread crash and consumption) via (1) an invalid salt or, when FIPS-140 is enabled, a (2) DES or (3) MD5 encrypted password, which triggers a NULL pointer dereference.

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-189
EPSS score
3.6% (89th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2013-4050)
Published
October 27, 2013
NVD last modified
June 16, 2026
Status
Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2013-4050 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.

View on the EU Vulnerability Database

Affected products

  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • cmu / cyrus-sasl
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc
  • gnu / glibc

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain