libgssapi and libgssglue before 0.4 do not properly check privileges, which allows local users to load untrusted configuration files and execute arbitrary code via the GSSAPI_MECH_CONF environment variable, as demonstrated using mount.nfs.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libgssglue | Umich | * | 0.3 (including) |
| Libgssglue | Umich | 0.1 (including) | 0.1 (including) |
| Libgssglue | Umich | 0.2 (including) | 0.2 (including) |
| Libgssglue | Ubuntu | hardy | * |
| Libgssglue | Ubuntu | lucid | * |
| Libgssglue | Ubuntu | maverick | * |
| Libgssglue | Ubuntu | natty | * |
| Libgssglue | Ubuntu | oneiric | * |
| Libgssglue | Ubuntu | precise | * |
References
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082072.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082297.html
- http://lwn.net/Alerts/449415/
- http://secunia.com/advisories/45075
- http://secunia.com/advisories/50785
- http://secunia.com/advisories/50973
- http://www.citi.umich.edu/projects/nfsv4/linux/libgssglue/libgssglue-0.4.tar.gz
- http://www.openwall.com/lists/oss-security/2011/07/21/3
- http://www.openwall.com/lists/oss-security/2011/07/22/4
- http://www.openwall.com/lists/oss-security/2011/08/12/10
- http://www.securityfocus.com/bid/48490
- https://bugzilla.novell.com/show_bug.cgi?id=694598
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082072.html
- http://lists.fedoraproject.org/pipermail/package-announce/2012-June/082297.html
- http://lwn.net/Alerts/449415/
- http://secunia.com/advisories/45075
- http://secunia.com/advisories/50785
- http://secunia.com/advisories/50973
- http://www.citi.umich.edu/projects/nfsv4/linux/libgssglue/libgssglue-0.4.tar.gz
- http://www.openwall.com/lists/oss-security/2011/07/21/3
- http://www.openwall.com/lists/oss-security/2011/07/22/4
- http://www.openwall.com/lists/oss-security/2011/08/12/10
- http://www.securityfocus.com/bid/48490
- https://bugzilla.novell.com/show_bug.cgi?id=694598