Vulnerability CVE-2020-18778


Published: 2021-08-23   Modified: 2021-08-24

Description:
In Libav 12.3, there is a heap-based buffer over-read in vc1_decode_p_mb_intfi in vc1_block.c that allows an attacker to cause denial-of-service via a crafted file.

Type:

CWE-787

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
Libav -> Libav 

 References:
https://bugzilla.libav.org/show_bug.cgi?id=1155

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