CVE-2017-14171
Description
In libavformat/nsvdec.c in FFmpeg 2.4 and 3.3.3, a DoS in nsv_parse_NSVf_header() due to lack of an EOF (End of File) check might cause huge CPU consumption. When a crafted NSV file, which claims a large "table_entries_used" field in the header but does not contain sufficient backing data, is provided, the loop over 'table_entries_used' would consume huge CPU resources, since there is no EOF check inside the loop.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2017-14171
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2017-14171.html
Vendor advisory: cve@mitre.org — https://github.com/FFmpeg/FFmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7
Vendor advisory: arch — https://security.archlinux.org/ASA-201709-10
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| arch | fixed | 1:3.3.4-1 | |
| debian | bookworm | fixed | 7:3.3.4-1 |
| debian | bullseye | fixed | 7:3.3.4-1 |
| debian | forky | fixed | 7:3.3.4-1 |
| debian | sid | fixed | 7:3.3.4-1 |
| debian | trixie | fixed | 7:3.3.4-1 |
Application impact
| Vendor | Product | Versions | Fixed |
|---|---|---|---|
| ffmpeg | ffmpeg | 3.3.3 | |
References
- https://security.archlinux.org/ASA-201709-10
- http://www.debian.org/security/2017/dsa-3996
- http://www.securityfocus.com/bid/100706
- https://github.com/FFmpeg/FFmpeg/commit/c24bcb553650b91e9eff15ef6e54ca73de2453b7
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html
- https://www.suse.com/security/cve/CVE-2017-14171.html
- https://security-tracker.debian.org/tracker/CVE-2017-14171
CWEs
CWE-834
Verify integrity in audit chain (admin only). AS-IS.