Debian Security Advisory
DLA-2021-1 libav -- LTS security update
- Date Reported:
- 05 Dec 2019
- Affected Packages:
- Security database references:
- In Mitre's CVE dictionary: CVE-2017-17127, CVE-2017-18245, CVE-2018-19128, CVE-2018-19130, CVE-2019-14443, CVE-2019-17542.
- More information:
Several security issues were fixed in libav, a multimedia library for processing audio and video files.
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.
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.
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.
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.
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