Buffer overflow in Libav
CVE-2017-16803
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.
Vulnerability class: Buffer Overflow
EPSS: 0.030 (86.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Libav — versions 12.0, 12.1
- N/a — versions n/a
Weakness classification (CWE)
References
- cve@mitre.org (vendor-advisory, x_refsource_DEBIAN)
- cve@mitre.org (vendor-advisory, x_refsource_GENTOO)
- cve@mitre.org (x_refsource_CONFIRM, Issue Tracking)
- cve@mitre.org (VDB Entry, Third Party Advisory, vdb-entry, x_refsource_BID)
- cve@mitre.org (x_refsource_CONFIRM, Issue Tracking)
Frequently asked questions
- What is CVE-2017-16803?
- CVE-2017-16803 is a high-severity vulnerability in Libav, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.5/10. Published 2017-11-13.
- How severe is CVE-2017-16803?
- High severity. CVSS v3 base score is 7.5 out of 10.