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Fencer Intel
medium 4.3

CVE-2013-4122 json

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 implem…

published 13y ago modified 4mo ago also EUVD-2013-4050

cvss
4.3
version 2.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
3.6%
EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits
0
none known

Summary

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.

Patch / fix

  • cyrus-sasl2 Debian 14, Debian 13, Debian 12 2.1.26.dfsg1-14

debian advisories DEBIAN-CVE-2013-4122

  • cyrus-sasl Alpine 3.24, Alpine 3.23, Alpine 3.22 +16 more 2.1.26-r7

alpine advisories ALPINE-CVE-2013-4122

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2013-4122 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2013-4122 updated cvss 5.0

cyrus-sasl: NULL pointer dereference (DoS) when glibc v.2.17 or FIPS-140 enabled Linux system used

  • Red Hat Enterprise Linux 5 cyrus-sasl Red Hat Enterprise Linux 6 cyrus-sasl, cyrus-sasl-lib, cyrus-sasl-md5, cyrus-sasl-sql, cyrus-sasl-ldap, cyrus-sasl-ntlm, +2 more Red Hat Enterprise Linux 7 cyrus-sasl, cyrus-sasl-gs2, cyrus-sasl-lib, cyrus-sasl-md5, cyrus-sasl-sql, cyrus-sasl-ldap, +4 more Red Hat JBoss Enterprise Application Platform 5 cyrus-sasl Red Hat JBoss Enterprise Application Platform 6 cyrus-sasl Red Hat JBoss Enterprise Web Server 2 cyrus-sasl
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

3.59% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • git.cyrusimap.org http://git.cyrusimap.org/cyrus-sasl/commit/?id=dedad73e5e7a75d01a5f3d5a6702ab8ccd2ff40d referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:N/A:P

Classification

Weakness

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.