CVE-2015-6818
Published: 5 September 2015
The decode_ihdr_chunk function in libavcodec/pngdec.c in FFmpeg before 2.7.2 does not enforce uniqueness of the IHDR (aka image header) chunk in a PNG image, which allows remote attackers to cause a denial of service (out-of-bounds array access) or possibly have unspecified other impact via a crafted image with two or more of these chunks.
Notes
| Author | Note |
|---|---|
| mdeslaur | as of 2016-03-11, no equivalent fix in libav |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ffmpeg Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(7:2.8.3-1)
|
| bionic |
Not vulnerable
(7:2.8.3-1)
|
|
| precise |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| vivid |
Not vulnerable
(7:2.5.9-0ubuntu0.15.04.1)
|
|
| wily |
Not vulnerable
(7:2.7.3-0ubuntu0.15.10.1)
|
|
| xenial |
Not vulnerable
(7:2.8.3-1)
|
|
| yakkety |
Not vulnerable
(7:2.8.3-1)
|
|
| zesty |
Not vulnerable
(7:2.8.3-1)
|
|
|
Patches: upstream: http://git.videolan.org/?p=ffmpeg.git;a=commit;h=47f4e2d8960ca756ca153ab8e3e93d80449b8c91 |
||
|
libav Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| precise |
Does not exist
(precise was released [4:0.8.17-0ubuntu0.12.04.2])
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Needs triage
|
|
| vivid |
Ignored
(reached end-of-life)
|
|
| wily |
Does not exist
|
|
| xenial |
Does not exist
|
|
| yakkety |
Does not exist
|
|
| zesty |
Does not exist
|
|