Debian alert DLA-2021-1 (libav)

From:
             
 
Sylvain Beucler <beuc@beuc.net> 
To:
             
 
debian-lts-announce@lists.debian.org 
Subject:
             
 
[SECURITY] [DLA 2021-1] libav security update 
Date:
             
 
Thu, 5 Dec 2019 19:48:56 +0100
Message-ID:
             
 
<20191205184856.bp25oy77v7jdovdv@mail.beuc.net>
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Package        : libav
Version        : 6:11.12-1~deb8u9
CVE ID         : CVE-2017-17127 CVE-2017-18245 CVE-2018-19128 CVE-2018-19130 
                 CVE-2019-14443 CVE-2019-17542


Several security issues were fixed in libav, a multimedia library for
processing audio and video files.

CVE-2017-17127

    The vc1_decode_frame function in libavcodec/vc1dec.c allows remote
    attackers to cause a denial of service (NULL pointer dereference
    and application crash) via a crafted file.
    CVE-2018-19130 is a duplicate of this vulnerability.

CVE-2017-18245

    The mpc8_probe function in libavformat/mpc8.c allows remote
    attackers to cause a denial of service (heap-based buffer
    over-read) via a crafted audio file on 32-bit systems.

CVE-2018-19128

    Heap-based buffer over-read in decode_frame in libavcodec/lcldec.c
    allows an attacker to cause denial-of-service via a crafted avi
    file.

CVE-2019-14443

    Division by zero in range_decode_culshift in libavcodec/apedec.c
    allows remote attackers to cause a denial of service (application
    crash), as demonstrated by avconv.

CVE-2019-17542

    Heap-based buffer overflow in vqa_decode_chunk because of an
    out-of-array access in vqa_decode_init in libavcodec/vqavideo.c.

For Debian 8 "Jessie", these problems have been fixed in version
6:11.12-1~deb8u9.

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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