A NULL pointer dereference flaw was found in Libtiffs LZWDecode() function in the libtiff/tif_lzw.c file. This flaw allows a local attacker to craft specific input data that can cause the program to dereference a NULL pointer when decompressing a TIFF format file, resulting in a program crash or denial of service.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Libtiff | Libtiff | * | 4.5.0 (excluding) |
| Red Hat Enterprise Linux 9 | RedHat | libtiff-0:4.4.0-10.el9 | * |
| Tiff | Ubuntu | kinetic | * |
| Tiff | Ubuntu | lunar | * |
| Tiff | Ubuntu | trusty | * |
| Tiff | Ubuntu | upstream | * |
| Tiff | Ubuntu | xenial | * |
Potential Mitigations
References
- https://access.redhat.com/security/cve/CVE-2023-2731
- https://bugzilla.redhat.com/show_bug.cgi?id=2207635
- https://github.com/libsdl-org/libtiff/commit/9be22b639ea69e102d3847dca4c53ef025e9527b
- https://gitlab.com/libtiff/libtiff/-/issues/548
- https://security.netapp.com/advisory/ntap-20230703-0009/
- https://access.redhat.com/security/cve/CVE-2023-2731
- https://bugzilla.redhat.com/show_bug.cgi?id=2207635
- https://github.com/libsdl-org/libtiff/commit/9be22b639ea69e102d3847dca4c53ef025e9527b
- https://gitlab.com/libtiff/libtiff/-/issues/548
- https://security.netapp.com/advisory/ntap-20230703-0009/