Improper input validation in Libav

CVE-2018-20001

In Libav 12.3, there is a floating point exception in the range_decode_culshift function (called from range_decode_bits) in libavcodec/apedec.c that will lead to remote denial of service via crafted input.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.010 (59.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

  • Libav — versions 12.3
  • N/a — versions n/a

Weakness classification (CWE)

References

  • cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2018-20001?
CVE-2018-20001 is a medium-severity vulnerability in Libav, classified under Improper Input Validation. CVSS score: 6.5/10. Published 2018-12-10.
How severe is CVE-2018-20001?
Medium severity. CVSS v3 base score is 6.5 out of 10.