CVE-2017-16803
libav - security update
7.5
HIGH
CVSS 3.1
EPSS 0.68%
Description
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.
How to fix CVE-2017-16803
To remediate CVE-2017-16803, upgrade the affected package to a fixed version below.
- —upgrade to 7:2.2.1-1 or later
- —upgrade to 6:11.12-1~deb8u1 or later
Is CVE-2017-16803 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 7:2.2.1-1
- from 0, < 6:11.12-1~deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |