In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption
Published Aug 31, 2017
6.5
MEDIUMCVSS 3.0
EPSS 1.82%
Description
In libavformat/rl2.c in FFmpeg 3.3.3, a DoS in rl2_read_header() due to lack of an EOF (End of File) check might cause huge CPU and memory consumption. When a crafted RL2 file, which claims a large "frame_count" field in the header but does not contain sufficient backing data, is provided, the loops (for offset and size tables) would consume huge CPU and memory resources, since there is no EOF check inside these loops.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
AV:N/AC:M/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (9 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 1.82% (0.01822) | 78.02th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.82% (0.01822) | 77.80th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.20% (0.00199) | 57.93th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.20% (0.00199) | 57.07th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.28% (0.00283) | 63.65th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (4)
- http://www.debian.org/security/2017/dsa-3996 vendor-advisoryx_refsource_DEBIAN
- http://www.securityfocus.com/bid/100628 vdb-entryx_refsource_BID
- https://github.com/FFmpeg/FFmpeg/commit/96f24d1bee7fe7bac08e2b7c74db1a046c9dc0de x_refsource_CONFIRMPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html mailing-listx_refsource_MLIST
| Link | Providers | Tags |
|---|---|---|
| http://www.debian.org/security/2017/dsa-3996 | vendor-advisoryx_refsource_DEBIAN | |
| http://www.securityfocus.com/bid/100628 | vdb-entryx_refsource_BID | |
| https://github.com/FFmpeg/FFmpeg/commit/96f24d1bee7fe7bac08e2b7c74db1a046c9dc0de | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/01/msg00006.html | mailing-listx_refsource_MLIST |
Change history (0)
No recorded changes yet.