CVE-2020-21598

moderate-risk
Published 2021-09-16

libde265 v1.0.4 contains a heap buffer overflow in the ff_hevc_put_unweighted_pred_8_sse function, which can be exploited via a crafted a file.

Do I need to act?

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0.28% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.8/10 High
NETWORK / LOW complexity

Affected Products (3)

Affected Vendors

Debian Struktur

References (8)

Technical Description https://cwe.mitre.org/data/definitions/122.html
Exploit https://github.com/strukturag/libde265/issues/237
Mailing List https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html
Third Party Advisory https://www.debian.org/security/2023/dsa-5346
Technical Description https://cwe.mitre.org/data/definitions/122.html
Exploit https://github.com/strukturag/libde265/issues/237
Mailing List https://lists.debian.org/debian-lts-announce/2023/01/msg00020.html
Third Party Advisory https://www.debian.org/security/2023/dsa-5346
40
/ 100
moderate-risk
Severity 30/34 · Critical
Exploitability 1/34 · Minimal
Exposure 9/34 · Low