Fixes: CVE-2011-3952
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Based on fix by Michael Niedermayer
(cherry picked from commit 386741f887)
(cherry picked from commit 416849f2e0)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Fixes Libav Bug 195.
Fixes CVE-2012-0850
This doesn't make the code handle sample rate or upsample/downsample
change properly but this is still a good sanity check.
Based on change by Michael Niedermayer.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
(cherry picked from commit 17ce52912f)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Fixes MSVR-11-0088
Fixes CVE-2011-4031
Credit: Jeong Wook Oh of Microsoft and Microsoft Vulnerability Research (MSVR)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 5ea091fb5a)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Fixes a crash when FF_DEBUG_PICT_INFO is used.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 6ef4063957)
Fixes: CVE-2012-0851
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 4713234518)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
The decoder assumes in various places that the image size
is a multiple of the block size, and there is no obvious
way to support odd sizes. Bailing out early if the header
specifies a bad size avoids various errors later on.
Fixes CVE-2012-0947.
Signed-off-by: Mans Rullgard <mans@mansr.com>
(cherry picked from commit 58b2e0f0f2)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit d5207e2af8)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Prevents crashes because the old check was incomplete.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 2d22d4307d)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 7fe4c8cb76)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
While bogus, this change avoids the necessity to backport
AVERROR_UNKNOWN, which is not entirely trivial.
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This eliminates a warning about a set-but-unused variable.
(cherry picked from commit 35fa0d4758)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Based in part by a fix from Michael Niedermayer <michaelni@gmx.at>
Fixes CVE-2011-3947
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
(cherry picked from commit b57d262412)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 083a8a0037)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Fixes invalid free() if any of the buffers are not allocated due to either
not decoding a header or an error prior to allocating all buffers.
Fixes CVE-2012-0858
CC: libav-stable@libav.org
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
(cherry picked from commit 204cb29b3c)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit 6fc3287b9c)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Add a check to avoid writing past the end of the channel_unit.components[]
array.
Bug Found by: cosminamironesei
Fixes CVE-2012-0853
CC: libav-stable@libav.org
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
(cherry picked from commit c509f4f747)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit f43b6e2b1e)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Progressive images can have only 16 references, error out if there are
more, since the data is almost certainly corrupt, and the invalid value
will lead to random crashes or invalid writes later on.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit e0febda22d)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
The safe bitstream reader broke it since the buffer size was specified
in bytes instead of bits.
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
CC: libav-stable@libav.org
(cherry picked from commit a1c036e961)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
We slightly overread the input buffer, so we require
padding at the end of the buffer, as is documented in the
get_bits API. Without padding, we'll read uninitialized
data or beyond the end of the .rodata, which may crash.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 4ffe5e2aa5)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This way, it protects against overreads for 4bpp/2bpp content also.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit cc5dd632ce)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Found with asan.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Alex Converse <alex.converse@gmail.com>
(cherry picked from commit 2d1c0dea5f)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
dv: Fix null pointer dereference due to ach=0
Fixes part2 of CVE-2011-3929
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Reviewed-by: Roman Shaposhnik <roman@shaposhnik.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Alex Converse <alex.converse@gmail.com>
(cherry picked from commit 5a396bb3a6)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
dv: check stype
Fixes part1 of CVE-2011-3929
Possibly fixes part of CVE-2011-3936
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Reviewed-by: Roman Shaposhnik <roman@shaposhnik.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Alex Converse <alex.converse@gmail.com>
(cherry picked from commit 635bcfccd4)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Alex Converse
Michael Niedermayer
Alexander Strange
Janne Grunau
Mans Rullgard
Ronald S. Bultje
Reinhard Tartler
Anton Khirnov
Gaurav Narula
Diego Biurrun
Justin Ruggles
Kostya Shishkov
Paul B Mahol