Vulnerability · Published Apr 5, 2021 · Assigned by redhat
CVE-2021-20308
Critical 9.8
In plain English
A critical-severity integer overflow in htmldoc. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.5% (higher than 85% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)9.8Critical
Exploit odds (30 days)2.5%top 15.4% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | htmldoc | 1.9.11-3 | DEBIAN-CVE-2021-20308 |
| Debian:13 | htmldoc | 1.9.11-3 | DEBIAN-CVE-2021-20308 |
| Debian:14 | htmldoc | 1.9.11-3 | DEBIAN-CVE-2021-20308 |
Affected products (as reported)
Weakness: CWE-190
References
- https://github.com/michaelrsweet/htmldoc/issues/423 x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1946289 x_refsource_MISC
- [debian-lts-announce] 20210701 [SECURITY] [DLA 2700-1] htmldoc security update mailing-list, x_refsource_MLIST