| Name | CVE-2020-35679 |
| Description | smtpd/table.c in OpenSMTPD before 6.8.0p1 lacks a certain regfree, which might allow attackers to trigger a "very significant" memory leak via messages to an instance that performs many regex lookups. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 978038 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| opensmtpd (PTS) | stretch (security), stretch (lts), stretch | 6.0.2p1-2+deb9u3 | fixed |
| buster (security), buster, buster (lts) | 6.0.3p1-5+deb10u4 | vulnerable |
| bullseye | 6.8.0p2-3 | fixed |
| bookworm | 6.8.0p2-4 | fixed |
| sid, trixie | 7.5.0p0-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|
| opensmtpd | source | stretch | (not affected) | | | |
| opensmtpd | source | (unstable) | 6.8.0p2-1 | | | 978038 |
Notes
[buster] - opensmtpd <no-dsa> (Minor issue)
[stretch] - opensmtpd <not-affected> (regex table supported added > 6.4.0 according to CHANGES.md)
https://github.com/openbsd/src/commit/79a034b4aed29e965f45a13409268290c9910043
https://www.mail-archive.com/misc@opensmtpd.org/msg05188.html