CVE catalog
CVE-2017-6961
apng2gif: CVE-2017-6961
- Severity
- Medium
- Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.80% · Oct 25, 2026
An issue was discovered in apng2gif 1.7. There is improper sanitization of user input causing huge memory allocations, resulting in a crash. This is related to the read_chunk function using the pChunk->size value (within the PNG file) to determine the amount of memory to allocate.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | apng2gif | sid | 1.8-5 | fixed |
| Debian | apng2gif | forky | 1.8-5 | fixed |
| Debian | apng2gif | trixie | 1.8-5 | fixed |
| Debian | apng2gif | bookworm | 1.8-4 | fixed |
| Ubuntu | apng2gif | 18.04 | 1.7-1 | vulnerable |
| Ubuntu | apng2gif | 20.04 | 1.8-0.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | apng2gif | source | sid | 1.8-0.1 | not yet assigned | Not reported | [854441] |
| Debian | apng2gif | source | forky | 1.8-0.1 | not yet assigned | Not reported | [854441] |
| Debian | apng2gif | source | trixie | 1.8-0.1 | not yet assigned | Not reported | [854441] |
| Debian | apng2gif | source | bookworm | 1.8-0.1 | not yet assigned | Not reported | [854441] |
| Ubuntu | apng2gif | deb | 20.04 | 1.8-0.1 | Not reported | UBUNTU-CVE-2017-6961 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [apng2gif]Fixed
Details (2)
1.8-4· amd64 · bookwormFixed · Fixed:
1.8-0.1dsa · apng2gif · debian · bookworm; dsa · apng2gif · debian · 12
1.8-4· arm64 · bookwormFixed · Fixed:
1.8-0.1dsa · apng2gif · debian · bookworm; dsa · apng2gif · debian · 12
[Debian 13 (Trixie)]
Observed: