CVE-2013-4122: cmu cyrus-sasl Numeric Errors
Vulnerability summary
CVE-2013-4122 is a medium (CVSS 4.3) Numeric Errors vulnerability in cmu cyrus-sasl. EPSS estimates a 3.59% chance of exploitation in the next 30 days, higher than 89.3% of scored vulnerabilities. 1 public exploit is recorded.
Timeline
- 27-10-2013PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
3.59%
Chance of exploitation in the next 30 days
Percentile
89%
Versus all other CVEs
30-day change
0.00 pp
From 3.59% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (git.cyrusimap.org)
Maturity: unknown
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- cyrus-sasl< 2.1.26-r7
Cmu1 product
- cyrus-sasl≤ 2.1.26 | 1.5.28 | 2.1.19 | 2.1.20 | 2.1.21 | 2.1.22 | 2.1.23 | 2.1.24 | 2.1.25
Debian1 product
- cyrus-sasl2< 2.1.26.dfsg1-14 | < 2.1.26.dfsg1-13+deb8u1
Ubuntu1 product
- cyrus-sasl2< 2.1.25.dfsg1-17
4 vendors · 4 products
References
16 links- git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40dX Refsource CONFIRMExploitPatchREPORT
- www.linuxquestions.org/questions/…X Refsource MISC
