| Name | CVE-2021-38371 |
| Description | The STARTTLS feature in Exim through 4.94.2 allows response injection (buffering) during MTA SMTP sending. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DLA-3938-1, ELA-868-1 |
| Debian Bugs | 992172 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| exim4 (PTS) | jessie, jessie (lts) | 4.84.2-2+deb8u12 | fixed |
| stretch (security) | 4.89-2+deb9u8 | vulnerable |
| stretch (lts), stretch | 4.89-2+deb9u13 | fixed |
| buster, buster (lts) | 4.92-8+deb10u10 | vulnerable |
| buster (security) | 4.92-8+deb10u9 | vulnerable |
| bullseye | 4.94.2-7+deb11u3 | vulnerable |
| bullseye (security) | 4.94.2-7+deb11u4 | fixed |
| bookworm | 4.96-15+deb12u6 | fixed |
| bookworm (security) | 4.96-15+deb12u5 | fixed |
| sid, trixie | 4.98-2 | fixed |
The information below is based on the following data on fixed versions.
Notes
[buster] - exim4 <no-dsa> (Minor issue)
[stretch] - exim4 <postponed> (Minor issue, revisit when fixed upstream)
https://nostarttls.secvuln.info
https://www.exim.org/static/doc/security/CVE-2021-38371.txt