CVE-2020-6794

NameCVE-2020-6794
DescriptionIf a user saved passwords before Thunderbird 60 and then later set a master password, an unencrypted copy of these passwords is still accessible. This is because the older stored password file was not deleted when the data was copied to a new format starting in Thunderbird 60. The new master password is added only on the new file. This could allow the exposure of stored password data outside of user expectations. This vulnerability affects Thunderbird < 68.5.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2104-1, DSA-4625-1
NVD severitymedium

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
thunderbird (PTS)jessie1:52.8.0-1~deb8u1vulnerable
jessie (security)1:68.9.0-1~deb8u2fixed
stretch1:68.4.1-1~deb9u1vulnerable
stretch (security)1:68.9.0-1~deb9u1fixed
buster1:68.7.0-1~deb10u1fixed
buster (security)1:68.9.0-1~deb10u1fixed
bullseye1:68.9.0-1fixed
sid1:68.10.0-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
thunderbirdsource(unstable)1:68.5.0-1
thunderbirdsourcebuster1:68.5.0-1~deb10u1DSA-4625-1
thunderbirdsourcejessie1:68.5.0-1~deb8u1DLA-2104-1
thunderbirdsourcestretch1:68.5.0-1~deb9u1DSA-4625-1

Notes

https://www.mozilla.org/en-US/security/advisories/mfsa2020-07/#CVE-2020-6794

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