Description
The original patch for CVE-2007-3999 in svc_auth_gss.c in the RPCSEC_GSS RPC library in MIT Kerberos 5 (krb5) 1.4 through 1.6.2, as used by the Kerberos administration daemon (kadmind) and other applications that use krb5, does not correctly check the buffer length in some environments and architectures, which might allow remote attackers to conduct a buffer overflow attack.
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.1-7 | — |
| Debian 13 | krb5 | 1.6.dfsg.1-7 | — |
| Debian 12 | krb5 | 1.6.dfsg.1-7 | — |
| Debian 4.0 | krb5 | 1.4.4-7etch4 | DSA-1367-1 |
| Debian 4.0 | librpcsecgss | 0.14-2etch3 | DSA-1387-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 5 | krb5 +4 | 1.5-29 | RHSA-2007:0892 |
Advisories 3
- RHSA-2007:0892 Red Hat Security Advisory: krb5 security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
- DSA-1367-1 krb5 - arbitrary code execution Debian Security (DSA / DLA) · Mar 9, 2026
- DSA-1387-1 librpcsecgss Debian Security (DSA / DLA) · Mar 9, 2026
References
- DSA-1387 vendor-advisory
- 26699 third-party-advisory
- SUSE-SR:2007:019 vendor-advisory
- RHSA-2007:0892 vendor-advisory
- https://issues.rpath.com/browse/RPL-1696
- 26444 vdb-entry
- USN-511-2 vendor-advisory
- 20070907 FLEA-2007-0050-1 krb5 krb5-workstation mailing-list
- 26987 third-party-advisory
- APPLE-SA-2007-11-14 vendor-advisory
- http://docs.info.apple.com/article.html?artnum=307041
- 20070906 rPSA-2007-0179-1 krb5 krb5-server krb5-services krb5-test krb5-workstation mailing-list
- oval:org.mitre.oval:def:10239 vdb-entry signature
- http://article.gmane.org/gmane.comp.encryption.kerberos.announce/86
- ADV-2007-3868 vdb-entry
- 27643 third-party-advisory
- TA07-319A third-party-advisory