CVE-2021-20308

medium
Published — · Modified —
CVSS v3
CVSS v2
VIR risk
5.5

Description

Integer overflow in the htmldoc 1.9.11 and before may allow attackers to execute arbitrary code and cause a denial of service that is similar to CVE-2017-9181.

Predictions

Exploit likelihood
20%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2021-20308

vendor Authored 2026-05-27

Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2021-20308.html

OS impact

OSVersionStatusFixed in
arch archfixed1.9.12-1
suse slesaffected
debian debianbookwormfixed1.9.11-3
debian debianbullseyefixed1.9.11-3
debian debianforkyfixed1.9.11-3
debian debiansidfixed1.9.11-3
debian debiantrixiefixed1.9.11-3

References

Verify integrity in audit chain (admin only). AS-IS.