CVE catalog

CVE-2021-40648

man2html: CVE-2021-40648

[CVE catalog]

Severity
Low
Published
Source
[NVD] · [CVE record]
EPSS
0.34% · Oct 25, 2026

In man2html 1.6g, a filename can be created to overwrite the previous size parameter of the next chunk and the fd, bk, fd_nextsize, bk_nextsize of the current chunk. The next chunk is then freed later on, causing a freeing of an arbitrary amount of memory.

Vulnerable and fixed packages

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

DistributionPackageReleaseVersionStatus
Debianman2htmlsid1.6g-16vulnerable
Debianman2htmlforky1.6g-16vulnerable
Debianman2htmltrixie1.6g-16vulnerable
Debianman2htmlbookworm1.6g-14vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianman2htmlsourcesid(unfixed)unimportantNot reported[1062069]
Debianman2htmlsourceforky(unfixed)unimportantNot reported[1062069]
Debianman2htmlsourcetrixie(unfixed)unimportantNot reported[1062069]
Debianman2htmlsourcebookworm(unfixed)unimportantNot reported[1062069]

[Debian bug #1062069]

OpenFactory catalog packages

[Debian 12 (Bookworm)]

  • [man2html]Affected
    Details (2)

    • 1.6g-14 · amd64 · bookworm

      Affected

      dsa · man2html · debian · bookworm; dsa · man2html · debian · 12

    • 1.6g-14 · arm64 · bookworm

      Affected

      dsa · man2html · debian · bookworm; dsa · man2html · debian · 12

  • [man2html-base]Affected

    Source package: [man2html]

    Details (2)

    • 1.6g-14 · amd64 · bookworm

      Affected

      dsa · man2html · debian · bookworm; dsa · man2html · debian · 12

    • 1.6g-14 · arm64 · bookworm

      Affected

      dsa · man2html · debian · bookworm; dsa · man2html · debian · 12

[Debian 13 (Trixie)]

  • [man2html]Affected

    Source package: [man2html]

    Details (2)

    • 1.6g-16 · amd64 · trixie

      Affected

      dsa · man2html · debian · 13

    • 1.6g-16+b2 · arm64 · trixie

      Affected

      dsa · man2html · debian · 13

  • [man2html-base]Affected

    Source package: [man2html]

    Details (2)

    • 1.6g-16 · amd64 · trixie

      Affected

      dsa · man2html · debian · 13

    • 1.6g-16+b2 · arm64 · trixie

      Affected

      dsa · man2html · debian · 13

Observed:

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database]