An issue was discovered in Exempi through 2.4.4. XMPFiles/source/FormatSupport/WEBP_Support.cpp does not check whether a bitstream has a NULL value, leading to a NULL pointer dereference in the WEBP::VP8XChunk class.
Weakness
The product dereferences a pointer that it expects to be valid but is NULL.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Exempi | Exempi_project | * | 2.4.4 (including) |
| Exempi | Ubuntu | artful | * |
Potential Mitigations
References
- https://bugs.freedesktop.org/show_bug.cgi?id=105247
- https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BCFXKOOATZ2B5G3G7EBXZWVZHEABN4ZV/
- https://usn.ubuntu.com/3668-1/
- https://bugs.freedesktop.org/show_bug.cgi?id=105247
- https://cgit.freedesktop.org/exempi/commit/?id=aabedb5e749dd59112a3fe1e8e08f2d934f56666
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BCFXKOOATZ2B5G3G7EBXZWVZHEABN4ZV/
- https://usn.ubuntu.com/3668-1/