[SECURITY] [DLA 1907-1] libav security update

Package : libav
Version : 6:11.12-1~deb8u8
CVE ID : CVE-2017-9987 CVE-2018-5766 CVE-2018-11102 CVE-2019-14372
CVE-2019-14442

Several security issues have been corrected in multiple demuxers and
decoders of the libav multimedia library.

CVE-2017-9987

In Libav, there was a heap-based buffer overflow in the function
hpel_motion in mpegvideo_motion.c. A crafted input could have lead to
a remote denial of service attack.

CVE-2018-5766

In Libav there was an invalid memcpy in the av_packet_ref function of
libavcodec/avpacket.c. Remote attackers could have leveraged this
vulnerability to cause a denial of service (segmentation fault) via a
crafted avi file.

CVE-2018-11102

A read access violation in the mov_probe function in
libavformat/mov.c allowed remote attackers to cause a denial of
service (application crash), as demonstrated by avconv.

CVE-2019-14372

In Libav, there was an infinite loop in the function
wv_read_block_header() in the file wvdec.c.

CVE-2019-14442

In mpc8_read_header in libavformat/mpc8.c, an input file could have
resulted in an avio_seek infinite loop and hang, with 100% CPU
consumption. Attackers could have leveraged this vulnerability to
cause a denial of service via a crafted file.

For Debian 8 "Jessie", these problems have been fixed in version
6:11.12-1~deb8u8.

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

–

mike gabriel aka sunweaver (Debian Developer)
fon: +49 (1520) 1976 148

GnuPG Fingerprint: 9BFB AEE8 6C0A A5FF BF22 0782 9AF4 6B30 2577 1B31
mail: [email protected], http://sunweavers.net

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