An error within the tar_directory_for_file() function (gsf-infile-tar.c) in GNOME Structured File Library before 1.14.41 can be exploited to trigger a Null pointer dereference and subsequently cause a crash via a crafted TAR file.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libgsf | Gnome | * | 1.14.40 (including) |
| Libgsf | Ubuntu | esm-apps/xenial | * |
| Libgsf | Ubuntu | esm-infra-legacy/trusty | * |
| Libgsf | Ubuntu | precise | * |
| Libgsf | Ubuntu | trusty | * |
| Libgsf | Ubuntu | trusty/esm | * |
| Libgsf | Ubuntu | upstream | * |
| Libgsf | Ubuntu | xenial | * |
| Libgsf | Ubuntu | yakkety | * |
Potential Mitigations
References
- http://www.securityfocus.com/bid/94860
- https://github.com/GNOME/libgsf/commit/95a8351a75758cf10b3bf6abae0b6b461f90d9e5
- https://lists.debian.org/debian-lts-announce/2020/04/msg00016.html
- https://secunia.com/advisories/71201/
- https://secunia.com/secunia_research/2016-17/
- http://www.securityfocus.com/bid/94860
- https://github.com/GNOME/libgsf/commit/95a8351a75758cf10b3bf6abae0b6b461f90d9e5
- https://lists.debian.org/debian-lts-announce/2020/04/msg00016.html
- https://secunia.com/advisories/71201/
- https://secunia.com/secunia_research/2016-17/