Vulnerability Details : CVE-2020-18775
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.
Vulnerability category: Denial of service
Products affected by CVE-2020-18775
- cpe:2.3:a:libav:libav:12.3:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-18775
0.12%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 45 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-18775
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2020-18775
-
The product reads data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-18775
-
https://cwe.mitre.org/data/definitions/126.html
CWE - CWE-126: Buffer Over-read (4.8)Technical Description
-
https://bugzilla.libav.org/show_bug.cgi?id=1152
Bug 1152 – heap-buffer-overflow in in vc1_decode_b_mb_intfi in vc1_block.cBroken Link;Exploit;Issue Tracking;Third Party Advisory
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