CVE-2020-10957

NameCVE-2020-10957
DescriptionIn Dovecot before 2.3.10.1, unauthenticated sending of malformed parameters to a NOOP command causes a NULL Pointer Dereference and crash in submission-login, submission, or lmtp.
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)
ReferencesDSA-4690-1
NVD severitymedium
Debian Bugs960963

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
dovecot (PTS)stretch1:2.2.27-3+deb9u5fixed
stretch (security)1:2.2.27-3+deb9u6fixed
buster1:2.3.4.1-5+deb10u4fixed
buster (security)1:2.3.4.1-5+deb10u3fixed
bullseye, sid1:2.3.11.3+dfsg1-2fixed

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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