Description
The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.7 before 1.7.2, and 1.8 alpha, allows remote attackers to cause a denial of service (assertion failure and daemon crash) via an invalid (1) AS-REQ or (2) TGS-REQ request.
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 | 1.8+dfsg~alpha1-7 | — |
| Debian 13 | krb5 | 1.8+dfsg~alpha1-7 | — |
| Debian 12 | krb5 | 1.8+dfsg~alpha1-7 | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | krb5 | 1.15-1.1 | openSUSE-SU-2024:10004-1 |
Advisories 1
- openSUSE-SU-2024:10004-1 krb5-1.15-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- APPLE-SA-2010-06-15-1 vendor-advisory
- 38260 vdb-entry
- USN-916-1 vendor-advisory
- ADV-2010-1481 vdb-entry
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-001.txt
- FEDORA-2010-1722 vendor-advisory
- 1023593 vdb-entry
- http://support.apple.com/kb/HT4188
- 40220 third-party-advisory
- 39023 third-party-advisory
- 20100216 MITKRB5-SA-2010-001 [CVE-2010-0283] krb5-1.7 KDC denial of service mailing-list
- 38598 third-party-advisory