The krb5_gss_process_context_token function in lib/gssapi/krb5/process_context_token.c in the libgssapi_krb5 library in MIT Kerberos 5 (aka krb5) through 1.11.5, 1.12.x through 1.12.2, and 1.13.x before 1.13.1 does not properly maintain security-context handles, which allows remote authenticated users to cause a denial of service (use-after-free and double free, and daemon crash) or possibly execute arbitrary code via crafted GSSAPI traffic, as demonstrated by traffic to kadmind.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Kerberos_5 | Mit | 1.11 (including) | 1.11 (including) |
| Kerberos_5 | Mit | 1.11.1 (including) | 1.11.1 (including) |
| Kerberos_5 | Mit | 1.11.2 (including) | 1.11.2 (including) |
| Kerberos_5 | Mit | 1.11.3 (including) | 1.11.3 (including) |
| Kerberos_5 | Mit | 1.11.4 (including) | 1.11.4 (including) |
| Kerberos_5 | Mit | 1.11.5 (including) | 1.11.5 (including) |
| Kerberos_5 | Mit | 1.12 (including) | 1.12 (including) |
| Kerberos_5 | Mit | 1.12.1 (including) | 1.12.1 (including) |
| Kerberos_5 | Mit | 1.12.2 (including) | 1.12.2 (including) |
| Kerberos_5 | Mit | 1.13 (including) | 1.13 (including) |
| Red Hat Enterprise Linux 6 | RedHat | krb5-0:1.10.3-37.el6_6 | * |
| Red Hat Enterprise Linux 7 | RedHat | krb5-0:1.12.2-14.el7 | * |
| Krb5 | Ubuntu | devel | * |
| Krb5 | Ubuntu | esm-infra-legacy/trusty | * |
| Krb5 | Ubuntu | lucid | * |
| Krb5 | Ubuntu | precise | * |
| Krb5 | Ubuntu | trusty | * |
| Krb5 | Ubuntu | trusty/esm | * |
| Krb5 | Ubuntu | upstream | * |
| Krb5 | Ubuntu | utopic | * |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151437.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00044.html
- http://rhn.redhat.com/errata/RHSA-2015-0439.html
- http://rhn.redhat.com/errata/RHSA-2015-0794.html
- http://web.mit.edu/kerberos/advisories/2015-001-patch-r113.txt
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2015-001.txt
- http://www.debian.org/security/2015/dsa-3153
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:069
- http://www.securityfocus.com/bid/72495
- http://www.ubuntu.com/usn/USN-2498-1
- https://github.com/krb5/krb5/commit/82dc33da50338ac84c7b4102dc6513d897d0506a
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151103.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-March/151437.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2015-02/msg00016.html
- http://lists.opensuse.org/opensuse-updates/2015-02/msg00044.html
- http://rhn.redhat.com/errata/RHSA-2015-0439.html
- http://rhn.redhat.com/errata/RHSA-2015-0794.html
- http://web.mit.edu/kerberos/advisories/2015-001-patch-r113.txt
- http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2015-001.txt
- http://www.debian.org/security/2015/dsa-3153
- http://www.mandriva.com/security/advisories?name=MDVSA-2015:069
- http://www.securityfocus.com/bid/72495
- http://www.ubuntu.com/usn/USN-2498-1
- https://github.com/krb5/krb5/commit/82dc33da50338ac84c7b4102dc6513d897d0506a