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(parent: 6483899) | patch
avcodec/pngdec: Only allow one IHDR chunk
authorMichael Niedermayer <michaelni@gmx.at>
Mon, 29 Jun 2015 17:08:05 +0000 (19:08 +0200)
committerMike Gabriel <sunweaver@debian.org>
Sat, 31 Aug 2019 15:36:55 +0000 (16:36 +0100)
commit1edf677387d170b63000aa6f71f0947d5f9b2876
tree3c21f298c6bb9b0797612adee400bd062b56cae6tree | snapshot
parent6483899a521241ccbd6d23d3ad87d921d756bd6bcommit | diff
avcodec/pngdec: Only allow one IHDR chunk

avcodec/pngdec: Only allow one IHDR chunk

Multiple IHDR chunks are forbidden in PNG
Fixes inconsistency and out of array accesses

Fixes: asan_heap-oob_4d5c5a_1738_cov_2638287726_c-m2-8f2b481b7fd9bd745e620b7c01a18df2.png
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Gbp-Pq: Name CVE-2015-6818.patch
libavcodec/pngdec.c diff | blob | history
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