Description
The spnego_gss_accept_sec_context function in lib/gssapi/spnego/spnego_mech.c in the SPNEGO GSS-API functionality in MIT Kerberos 5 (aka krb5) 1.7 before 1.7.2 and 1.8 before 1.8.1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) via an invalid packet that triggers incorrect preparation of an error token.
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-1.1 | — |
| Debian 13 | krb5 | 1.8+dfsg-1.1 | — |
| Debian 12 | krb5 | 1.8+dfsg-1.1 | — |
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
- USN-916-1 vendor-advisory
- 20100323 MITKRB5-SA-2010-002 denial of service in SPNEGO [CVE-2010-0628 VU#839413] mailing-list
- 38904 vdb-entry
- https://bugzilla.redhat.com/show_bug.cgi?id=566258
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-002.txt
- 39023 third-party-advisory
- VU#839413 third-party-advisory