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CVE-2020-18775

Published: 23 August 2021

In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_b_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.

Priority

Low

Cvss 3 Severity Score

6.5

Score breakdown

Status

Package Release Status
libav
Launchpad, Ubuntu, Debian
xenial Ignored
(end of standard support)
bionic Does not exist

focal Does not exist

hirsute Does not exist

impish Does not exist

trusty Needed

jammy Does not exist

kinetic Does not exist

lunar Does not exist

upstream Needs triage

mantic Does not exist

Severity score breakdown

Parameter Value
Base score 6.5
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H