CVE-2020-10958

NameCVE-2020-10958
DescriptionIn Dovecot before 2.3.10.1, a crafted SMTP/LMTP message triggers an unauthenticated use-after-free bug in submission-login, submission, or lmtp, and can lead to a crash under circumstances involving many newlines after a command.
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)bullseye1:2.3.13+dfsg1-2+deb11u1fixed
bullseye (security)1:2.3.13+dfsg1-2+deb11u2fixed
bookworm, bookworm (security)1:2.3.19.1+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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