DescriptionWhen xdg-mail is configured to use thunderbird for mailto URLs, improper parsing of the URL can lead to additional headers being passed to thunderbird that should not be included per RFC 2368. An attacker can use this method to create a mailto URL that looks safe to users, but will actually attach files when clicked.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
Debian Bugs1027160

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
xdg-utils (PTS)buster1.1.3-1+deb10u1vulnerable
bookworm, bullseye, sid, trixie1.1.3-4.1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs


[bookworm] - xdg-utils <no-dsa> (Minor issue)
[bullseye] - xdg-utils <no-dsa> (Minor issue)
[buster] - xdg-utils <no-dsa> (Minor issue)

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