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Debian LTS Advisory ([SECURITY] [DLA 2021-1] libav security update)
Information
Severity
Severity
Family
Family
CVSSv2 Base
CVSSv2 Base
CVSSv2 Vector
CVSSv2 Vector
Solution Type
Solution Type
Created
Created
Modified
Modified
Summary
The remote host is missing an update for the 'libav' package(s) announced via the DSA-2021-1 advisory.
Insight
Insight
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.
Affected Software
Affected Software
'libav' package(s) on Debian Linux.
Detection Method
Detection Method
Checks if a vulnerable package version is present on the target host.
Solution
Solution
For Debian 8 'Jessie', these problems have been fixed in version 6:11.12-1~deb8u9. We recommend that you upgrade your libav packages.