CVE-2015-6820: Buffer Overflow
First published: Sun Sep 06 2015(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| FFmpeg | <=2.7.1 | |
| Ubuntu | =12.04 |
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Reference Links
- http://ffmpeg.org/security.html
- http://git.videolan.org/?p=ffmpeg.git;a=commit;h=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://git.videolan.org/?p=ffmpeg.git%3Ba=commit%3Bh=79a98294da6cd85f8c86b34764c5e0c43b09eea3
Frequently Asked Questions
What is the severity of CVE-2015-6820?
CVE-2015-6820 has been classified as a denial of service vulnerability that can lead to out-of-bounds array access.
How do I fix CVE-2015-6820?
To fix CVE-2015-6820, update FFmpeg to version 2.7.2 or later.
Which software versions are affected by CVE-2015-6820?
CVE-2015-6820 affects FFmpeg versions prior to 2.7.2 and Ubuntu Linux 12.04.
What kind of attack can CVE-2015-6820 facilitate?
CVE-2015-6820 allows remote attackers to cause a denial of service through out-of-bounds array access.
What component of FFmpeg is vulnerable in CVE-2015-6820?
The vulnerability in CVE-2015-6820 is found in the ff_sbr_apply function within libavcodec/aacsbr.c.
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