Description
The iakerb_gss_export_sec_context function in lib/gssapi/krb5/iakerb.c in MIT Kerberos 5 (aka krb5) 1.14 pre-release 2015-09-14 improperly accesses a certain pointer, which allows remote authenticated users to cause a denial of service (memory corruption) or possibly have unspecified other impact by interacting with an application that calls the gss_export_sec_context function. NOTE: this vulnerability exists because of an incorrect fix for CVE-2015-2696.
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 | 1.13.2+dfsg-4 | — |
| Debian 13 | krb5 | 1.13.2+dfsg-4 | — |
| Debian 12 | krb5 | 1.13.2+dfsg-4 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | krb5 | 1.12+dfsg-2ubuntu5.2 | USN-2810-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 12 SP1 | krb5 | 1.12.1-22.5 | SUSE-SU-2015:2302-1 |
| SLES 12 | krb5 | 1.12.1-22.5 | SUSE-SU-2015:2302-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 12 SP1 | krb5 | 1.12.1-22.5 | SUSE-SU-2015:2302-1 |
| SLES for SAP 12 | krb5 | 1.12.1-22.5 | SUSE-SU-2015:2302-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | krb5 | 1.15-1.1 | openSUSE-SU-2024:10004-1 |
Advisories 3
- USN-2810-1 krb5 vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- openSUSE-SU-2024:10004-1 krb5-1.15-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:2302-1 Security update for krb5 SUSE / openSUSE Security Updates · Feb 4, 2026
References
- https://github.com/krb5/krb5/commit/3db8dfec1ef50ddd78d6ba9503185995876a39fd
- http://krbdev.mit.edu/rt/Ticket/Display.html?id=8273
- openSUSE-SU-2015:2055 vendor-advisory
- openSUSE-SU-2015:2376 vendor-advisory
- USN-2810-1 vendor-advisory