CVE-2020-10967

NameCVE-2020-10967
DescriptionIn Dovecot before 2.3.10.1, remote unauthenticated attackers can crash the lmtp or submission process by sending mail with an empty localpart.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDSA-4690-1
Debian Bugs960963

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
dovecot (PTS)jessie, jessie (lts)1:2.2.13-12~deb8u9fixed
stretch (security)1:2.2.27-3+deb9u7fixed
stretch (lts), stretch1:2.2.27-3+deb9u8fixed
buster, buster (lts)1:2.3.4.1-5+deb10u8fixed
buster (security)1:2.3.4.1-5+deb10u7fixed
bullseye1:2.3.13+dfsg1-2+deb11u1fixed
bullseye (security)1:2.3.13+dfsg1-2+deb11u2fixed
bookworm (security), bookworm1:2.3.19.1+dfsg1-2.1+deb12u1fixed
sid, trixie1:2.3.21.1+dfsg1-1fixed

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
dovecotsourcejessie(not affected)
dovecotsourcestretch(not affected)
dovecotsourcebuster1:2.3.4.1-5+deb10u2DSA-4690-1
dovecotsource(unstable)1:2.3.10.1+dfsg1-1960963

Notes

[stretch] - dovecot <not-affected> (Vulnerable code introduced in 2.3.0)
[jessie] - dovecot <not-affected> (Vulnerable code introduced in 2.3.0)
https://www.openwall.com/lists/oss-security/2020/05/18/1

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