Description
Double free vulnerability in MIT Kerberos 5 (aka krb5) allows attackers to have unspecified impact via vectors involving automatic deletion of security contexts on error.
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 | 1.15.2-1 | — |
| Debian 13 | krb5 | 1.15.2-1 | — |
| Debian 12 | krb5 | 1.15.2-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | krb5 | 1.13.2+dfsg-5ubuntu2.1 | — |
| Ubuntu 14.04 LTS | krb5 | 1.12+dfsg-2ubuntu5.4 | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP3 | krb5 | 1.12.5-40.13.1 | SUSE-SU-2017:2659-1 |
| SLES 12 SP2 | krb5 | 1.12.5-40.13.1 | SUSE-SU-2017:2659-1 |
| SLES 11 SP4 | krb5 | 1.6.3-133.49.113.7.1 | SUSE-SU-2018:0859-1 |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP3 | krb5 | 1.12.5-40.13.1 | SUSE-SU-2017:2659-1 |
| SLES for SAP 12 SP2 | krb5 | 1.12.5-40.13.1 | SUSE-SU-2017:2659-1 |
| SLES for SAP 11 SP4 | krb5 | 1.6.3-133.49.113.7.1 | SUSE-SU-2018:0859-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | krb5 | 1.19.2-2.2 | openSUSE-SU-2024:10899-1 |
Advisories 3
- SUSE-SU-2017:2659-1 Security update for krb5 SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2018:0859-1 Security update for krb5 SUSE / openSUSE Security Updates · Feb 4, 2026
- openSUSE-SU-2024:10899-1 krb5-1.19.2-2.2 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026