CVE-2023-50761

NameCVE-2023-50761
DescriptionThe signature of a digitally signed S/MIME email message may optionally specify the signature creation date and time. If present, Thunderbird did not compare the signature creation date with the message date and time, and displayed a valid signature despite a date or time mismatch. This could be used to give recipients the impression that a message was sent at a different date or time. This vulnerability affects Thunderbird < 115.6.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3698-1, DSA-5582-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
thunderbird (PTS)buster1:91.12.0-1~deb10u1vulnerable
buster (security)1:115.11.0-1~deb10u1fixed
bullseye1:115.7.0-1~deb11u1fixed
bullseye (security)1:115.11.0-1~deb11u1fixed
bookworm1:115.7.0-1~deb12u1fixed
bookworm (security)1:115.11.0-1~deb12u1fixed
sid, trixie1:115.11.0-1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
thunderbirdsourcebuster1:115.6.0-1~deb10u1DLA-3698-1
thunderbirdsourcebullseye1:115.6.0-1~deb11u1DSA-5582-1
thunderbirdsourcebookworm1:115.6.0-1~deb12u1DSA-5582-1
thunderbirdsource(unstable)1:115.6.0-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2023-55/#CVE-2023-50761

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