Description
KDC in MIT Kerberos 5 (krb5kdc) does not set a global variable for some krb4 message types, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via crafted messages that trigger a NULL pointer dereference or double-free.
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 | 1.6.dfsg.3~beta1-4 | — |
| Debian 13 | krb5 | 1.6.dfsg.3~beta1-4 | — |
| Debian 12 | krb5 | 1.6.dfsg.3~beta1-4 | — |
| Debian 4.0 | krb5 | 1.4.4-7etch5 | DSA-1524-1 |
| Debian 3.1 | krb5 | 1.3.6-2sarge6 | DSA-1524-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | krb5 +4 | 1.6.1-17.el5_1.1 | RHSA-2008:0164 |
| RHEL 4 | krb5 +4 | 1.3.4-54.el4_6.1 | RHSA-2008:0180 |
| RHEL 3 | krb5 +4 | 1.2.7-68 | RHSA-2008:0181 |
| RHEL 2 | krb5 +4 | 1.2.2-48 | RHSA-2008:0181 |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 4.5 EUS | krb5 +4 | 1.3.4-49.el4_5.1 | RHSA-2008:0182 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | krb5 | 1.19.2-2.2 | openSUSE-SU-2024:10899-1 |
Advisories 6
- RHSA-2008:0164 Red Hat Security Advisory: krb5 security and bugfix update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2008:0182 Red Hat Security Advisory: krb5 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2008:0180 Red Hat Security Advisory: krb5 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- RHSA-2008:0181 Red Hat Security Advisory: krb5 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1524-1 krb5 - multiple vulnerabilities Debian Security (DSA / DLA) · Mar 9, 2026
- openSUSE-SU-2024:10899-1 krb5-1.19.2-2.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
References
- ADV-2008-1744 vdb-entry
- 29457 third-party-advisory
- MDVSA-2008:069 vendor-advisory
- 29464 third-party-advisory
- GLSA-200803-31 vendor-advisory
- FEDORA-2008-2637 vendor-advisory
- MDVSA-2008:071 vendor-advisory
- http://wiki.rpath.com/Advisories:rPSA-2008-0112
- http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5022542.html
- SSRT100495 vendor-advisory
- 29451 third-party-advisory
- 29663 third-party-advisory
- FEDORA-2008-2647 vendor-advisory
- http://wiki.rpath.com/wiki/Advisories:rPSA-2008-0112
- 29438 third-party-advisory
- http://www.vmware.com/security/advisories/VMSA-2008-0009.html
- oval:org.mitre.oval:def:9496 vdb-entry signature
- ADV-2008-0924 vdb-entry
- RHSA-2008:0164 vendor-advisory
- MDVSA-2008:070 vendor-advisory
- ADV-2008-0922 vdb-entry
- 29450 third-party-advisory
- 29435 third-party-advisory
- krb5-kdc-code-execution(41275) vdb-entry
- 1019626 vdb-entry
- 20080319 rPSA-2008-0112-1 krb5 krb5-server krb5-services krb5-test krb5-workstation mailing-list
- 29428 third-party-advisory
- 29420 third-party-advisory
- DSA-1524 vendor-advisory
- 30535 third-party-advisory
- APPLE-SA-2008-03-18 vendor-advisory
- RHSA-2008:0182 vendor-advisory
- http://support.novell.com/docs/Readmes/InfoDocument/patchbuilder/readme_5022520.html
- 20080604 VMSA-2008-0009 Updates to VMware Workstation, VMware Player, VMware ACE, VMware Fusion, VMware Server, VMware VIX API, VMware ESX, VMware ESXi resolve critical security issues mailing-list
- RHSA-2008:0180 vendor-advisory
- SUSE-SA:2008:016 vendor-advisory
- 29516 third-party-advisory
- 29462 third-party-advisory
- 29424 third-party-advisory
- http://docs.info.apple.com/article.html?artnum=307562
- RHSA-2008:0181 vendor-advisory
- 29423 third-party-advisory
- USN-587-1 vendor-advisory
- ADV-2008-1102 vdb-entry
- 28303 vdb-entry
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2008-001.txt
- 20080318 MITKRB5-SA-2008-001: double-free, uninitialized data vulnerabilities in krb5kdc mailing-list
- VU#895609 third-party-advisory