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(parent: 6a04064) | 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>
Tue, 28 May 2019 12:14:01 +0000 (13:14 +0100)
commit6061d9e1bce9f650e93a76d438b676aaedd77838
tree985ef2a4fa564f131a558da449113dcddab4d43ftree | snapshot
parent6a04064f3151955b9240ab2b711a84884e967004commit | 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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