CVE-2025-24528

NameCVE-2025-24528
DescriptionIn MIT Kerberos 5 (aka krb5) before 1.22 (with incremental propagation), there is an integer overflow for a large update size to resize() in kdb_log.c. An authenticated attacker can cause an out-of-bounds write and kadmind daemon crash.
SourceCVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-4065-1
Debian Bugs1094730

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
krb5 (PTS)bookworm, bookworm (security)1.20.1-2+deb12u5fixed
trixie (security), trixie1.21.3-5+deb13u1fixed
forky, sid1.22.1-3fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
krb5sourcebullseye1.18.3-6+deb11u6DLA-4065-1
krb5sourcebookworm1.20.1-2+deb12u3
krb5source(unstable)1.21.3-51094730

Notes

https://bugzilla.redhat.com/show_bug.cgi?id=2342796
Fixed by: https://github.com/krb5/krb5/commit/78ceba024b64d49612375be4a12d1c066b0bfbd0
Search for package or bug name: Reporting problems