Description
Format string vulnerabilities in the logging routines for MIT Kerberos V5 Key Distribution Center (KDC) before 1.2.5 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via format string specifiers in Kerberos principal names.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | krb5 | 1.2.4 | — |
| Debian 13 | krb5 | 1.2.4 | — |
| Debian 12 | krb5 | 1.2.4 | — |
References
- http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-001-multiple.txt
- CLSA-2003:639 vendor-advisory
- 6712 vdb-entry
- VU#787523 third-party-advisory
- kerberos-kdc-format-string(11189) vdb-entry
- 4879 vdb-entry