CVE catalog

CVE-2021-20308

htmldoc: CVE-2021-20308

[CVE catalog]

Severity
Low · CVSS 3.3CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Published
Source
[NVD] · [CVE record]
EPSS
2.48% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianhtmldocsid1.9.24-1fixed
Debianhtmldocforky1.9.24-1fixed
Debianhtmldoctrixie1.9.20-1fixed
Debianhtmldocbookworm1.9.16-1fixed
Ubuntuhtmldocpro1.9.3-1vulnerable
Ubuntuhtmldocpro1.9.7-1vulnerable
Ubuntuhtmldocpro1.9.7-1build1vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.2vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.3vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.3+esm1fixed
Susehtmldocpackage hub 12 sp11.8.28-6.1fixed
Susehtmldocpackage hub 15 sp21.9.12-bp152.4.3.1fixed
Opensusehtmldocleap 15.21.9.12-lp152.4.3.1fixed
Ubuntuhtmldocpro1.9.3-1vulnerable
Ubuntuhtmldocpro1.9.7-1vulnerable
Ubuntuhtmldocpro1.9.7-1build1vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.2vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.3vulnerable
Ubuntuhtmldocpro1.9.7-1ubuntu0.3+esm1fixed
Opensusehtmldoctumbleweed1.9.12-1.2fixed
Susehtmldocpackage hub 15 sp11.9.12-bp151.4.3.1fixed

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianhtmldocsourcesid1.9.11-3unimportantNot reported[984765]
Debianhtmldocsourceforky1.9.11-3unimportantNot reported[984765]
Debianhtmldocsourcetrixie1.9.11-3unimportantNot reported[984765]
Debianhtmldocsourcebookworm1.9.11-3unimportantNot reported[984765]
Ubuntuhtmldocdebpro1.9.7-1ubuntu0.3+esm1Not reportedUSN-7189-1Not reported
Susehtmldocrpmpackage hub 12 sp11.8.28-6.1Not reportedOPENSUSE-SU-2021:1266-1Not reported
Susehtmldocrpmpackage hub 15 sp21.9.12-bp152.4.3.1Not reportedOPENSUSE-SU-2021:0893-1Not reported
Opensusehtmldocrpmleap 15.21.9.12-lp152.4.3.1Not reportedOPENSUSE-SU-2021:0882-1Not reported
Ubuntuhtmldocdebpro1.9.7-1ubuntu0.3+esm1Not reportedUBUNTU-CVE-2021-20308Not reported
Opensusehtmldocrpmtumbleweed1.9.12-1.2Not reportedOPENSUSE-SU-2024:10848-1Not reported
Susehtmldocrpmpackage hub 15 sp11.9.12-bp151.4.3.1Not reportedOPENSUSE-SU-2021:0895-1Not reported

[Debian bug #984765]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [htmldoc]Fixed
    Details (2)

    • 1.9.16-1 · amd64 · bookworm

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

    • 1.9.16-1 · arm64 · bookworm

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

  • [htmldoc-common]Fixed

    Source package: [htmldoc]

    Details (2)

    • 1.9.16-1 · all · bookworm

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

    • 1.9.16-1 · all · bookworm

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · bookworm; dsa · htmldoc · debian · 12

[Debian 13 (Trixie)]

  • [htmldoc]Fixed
    Details (2)

    • 1.9.20-1 · amd64 · trixie

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · 13

    • 1.9.20-1 · arm64 · trixie

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · 13

  • [htmldoc-common]Fixed

    Source package: [htmldoc]

    Details (2)

    • 1.9.20-1 · all · trixie

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · 13

    • 1.9.20-1 · all · trixie

      Fixed · Fixed: 1.9.11-3

      dsa · htmldoc · debian · 13

[openSUSE Tumbleweed]

  • [htmldoc]Fixed

    Source package: [htmldoc]

    Details (1)

    • 1.9.23-1.6 · x86_64 · tumbleweed

      Fixed · Fixed: 1.9.12-1.2

      dsa · htmldoc · opensuse · tumbleweed

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]