A double-free bug in the read_gif function in gifread.c in gifsicle 1.90 allows a remote attacker to cause a denial-of-service attack or unspecified other impact via a maliciously crafted file, because last_name is mishandled, a different vulnerability than CVE-2017-1000421.
Weakness
The product calls free() twice on the same memory address.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gifsicle | Lcdf | 1.90 (including) | 1.90 (including) |
| Gifsicle | Ubuntu | artful | * |
| Gifsicle | Ubuntu | esm-apps/xenial | * |
| Gifsicle | Ubuntu | esm-infra-legacy/trusty | * |
| Gifsicle | Ubuntu | trusty | * |
| Gifsicle | Ubuntu | trusty/esm | * |
| Gifsicle | Ubuntu | upstream | * |
| Gifsicle | Ubuntu | xenial | * |
Potential Mitigations
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120
- https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909
- https://github.com/kohler/gifsicle/issues/117
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=878739
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=881120
- https://github.com/kohler/gifsicle/commit/118a46090c50829dc543179019e6140e1235f909
- https://github.com/kohler/gifsicle/issues/117