CVE-2017-16803
HighSummary
In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, allowing remote attackers to cause a denial of service via a crafted Smacker stream.
Risk Assessment
An attacker can exploit this vulnerability to trigger application crashes, leading to potential downtime in system operations.
Recommendation
It is recommended to update Libav to the latest version to mitigate this vulnerability and to monitor systems for unauthorized Smacker streams.
Other vulnerabilities in Libav
See all- CVE-2017-17130High
The ff_free_picture_tables function in libavcodec/mpegpicture.c in Libav 12.2 allows remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
- CVE-2017-17129High
The ff_vc1_mc_4mv_chroma4 function in libavcodec/vc1_mc.c in Libav 12.2 allows remote attackers to cause a denial of service (segmentation fault and application crash) or possibly have unspecified other impact via a crafted file.
- CVE-2017-11684High
There is an illegal address access in the build_table function in libavcodec/bitstream.c of Libav 12.1 that may lead to remote denial of service via crafted input.
- CVE-2017-9987High
There is a heap-based buffer overflow in the function hpel_motion in mpegvideo_motion.c in libav 12.1. A crafted input can lead to a remote denial of service attack.
- CVE-2014-3984High
Multiple unspecified vulnerabilities in Libav before version 0.8.12 may allow remote attackers to achieve unknown impact and vectors.
- CVE-2017-9051Critical
Libav versions before 12.1 are vulnerable to an invalid read of size 1 due to NULL pointer dereferencing in the nsv_read_chunk function in libavformat/nsvdec.c.
Original NVD description (English source)
In Libav through 11.11 and 12.x through 12.1, the smacker_decode_tree function in libavcodec/smacker.c does not properly restrict tree recursion, which allows remote attackers to cause a denial of service (bitstream.c:build_table() out-of-bounds read and application crash) via a crafted Smacker stream.