CVE-2015-6820
The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which allows remote attackers to cause a denial of service…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.41%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The ff_sbr_apply function in libavcodec/aacsbr.c in FFmpeg before 2.7.2 does not check for a matching AAC frame syntax element before proceeding with Spectral Band Replication calculations, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via crafted AAC data.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 2.41% probability · 83th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- ffmpeg/ffmpeg · canonical/ubuntu linux
- Source
- cve@mitre.org
References
- http://ffmpeg.org/security.html
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=79a98294da6cd85f8c86b34764c5e0c43b09eea3
- http://www.securitytracker.com/id/1033483
- http://www.ubuntu.com/usn/USN-2944-1
- https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html
- http://ffmpeg.org/security.html
- http://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=79a98294da6cd85f8c86b34764c5e0c43b09eea3
- http://www.securitytracker.com/id/1033483
- http://www.ubuntu.com/usn/USN-2944-1
- https://lists.debian.org/debian-lts-announce/2018/12/msg00009.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.