Vulnerability · Published Sep 16, 2021 · Assigned by mitre
CVE-2020-21598
High 8.8
In plain English
A high-severity security flaw in the libde265 package (Alpine). There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)8.8High
Exploit odds (30 days)1.8%top 21.2% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine:v3.20 | libde265 | 1.0.11-r0 | ALPINE-CVE-2020-21598 |
| Alpine:v3.21 | libde265 | 1.0.11-r0 | ALPINE-CVE-2020-21598 |
| Alpine:v3.22 | libde265 | 1.0.11-r0 | ALPINE-CVE-2020-21598 |
| Alpine:v3.23 | libde265 | 1.0.11-r0 | ALPINE-CVE-2020-21598 |
| Alpine:v3.24 | libde265 | 1.0.11-r0 | ALPINE-CVE-2020-21598 |
| Debian:12 | libde265 | 1.0.9-1 | DEBIAN-CVE-2020-21598 |
| Debian:13 | libde265 | 1.0.9-1 | DEBIAN-CVE-2020-21598 |
| Debian:14 | libde265 | 1.0.9-1 | DEBIAN-CVE-2020-21598 |