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AUSCERT External Security Bulletin Redistribution
ESB-2019.1933
[DLA 1809-1] libav security update
30 May 2019
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AusCERT Security Bulletin Summary
---------------------------------
Product: libav
Publisher: Debian
Operating System: Debian GNU/Linux 8
Impact/Access: Denial of Service -- Remote with User Interaction
Provide Misleading Information -- Remote with User Interaction
Resolution: Patch/Upgrade
CVE Names: CVE-2019-11338 CVE-2018-15822
Reference: ESB-2019.1842
ESB-2019.1575
ESB-2018.3449
Original Bulletin:
https://lists.debian.org/debian-lts-announce/2019/05/msg00043.html
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Package : libav
Version : 6:11.12-1~deb8u7
CVE ID : CVE-2018-15822 CVE-2019-11338
Two more security issues have been corrected in multiple demuxers and
decoders of the libav multimedia library.
CVE-2018-15822
The flv_write_packet function in libavformat/flvenc.c in libav did
not check for an empty audio packet, leading to an assertion failure.
CVE-2019-11338
libavcodec/hevcdec.c in libav mishandled detection of duplicate first
slices, which allowed remote attackers to cause a denial of service
(NULL pointer dereference and out-of-array access) or possibly have
unspecified other impact via crafted HEVC data.
For Debian 8 "Jessie", these problems have been fixed in version
6:11.12-1~deb8u7.
We recommend that you upgrade your libav packages.
Further information about Debian LTS security advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://wiki.debian.org/LTS
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