CVE-2021-38371

NameCVE-2021-38371
DescriptionThe STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending.
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)
NVD severitymedium
Debian Bugs992172

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
exim4 (PTS)stretch4.89-2+deb9u7vulnerable
stretch (security)4.89-2+deb9u8vulnerable
buster, buster (security)4.92-8+deb10u6vulnerable
bullseye4.94.2-7vulnerable
bookworm, sid4.95~RC2-1vulnerable

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

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
exim4source(unstable)(unfixed)992172

Notes

[stretch] - exim4 <postponed> (Minor issue, revisit when fixed upstream)
https://nostarttls.secvuln.info
https://www.exim.org/static/doc/security/CVE-2021-38371.txt

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