| Name | CVE-2020-12100 |
| Description | In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda allows remote attackers to cause a denial of service (resource consumption) via a crafted e-mail message with deeply nested MIME parts. |
| 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-2328-1, DSA-4745-1, ELA-260-1 |
| Debian Bugs | 968302 |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| dovecot (PTS) | jessie, jessie (lts) | 1:2.2.13-12~deb8u9 | fixed |
| stretch (security) | 1:2.2.27-3+deb9u7 | fixed | |
| stretch (lts), stretch | 1:2.2.27-3+deb9u8 | fixed | |
| buster, buster (lts) | 1:2.3.4.1-5+deb10u8 | fixed | |
| buster (security) | 1:2.3.4.1-5+deb10u7 | fixed | |
| bullseye | 1:2.3.13+dfsg1-2+deb11u1 | fixed | |
| bullseye (security) | 1:2.3.13+dfsg1-2+deb11u2 | fixed | |
| bookworm (security), bookworm | 1:2.3.19.1+dfsg1-2.1+deb12u1 | fixed | |
| sid, trixie | 1:2.3.21.1+dfsg1-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| dovecot | source | jessie | 1:2.2.13-12~deb8u8 | ELA-260-1 | ||
| dovecot | source | stretch | 1:2.2.27-3+deb9u6 | DLA-2328-1 | ||
| dovecot | source | buster | 1:2.3.4.1-5+deb10u3 | DSA-4745-1 | ||
| dovecot | source | (unstable) | 1:2.3.11.3+dfsg1-1 | 968302 |
https://www.openwall.com/lists/oss-security/2020/08/12/1
https://github.com/dovecot/core/commit/d4bb43a08ab9ecfab7249a17279e5f773c8abaad
https://github.com/dovecot/core/commit/6d77e00e4d170efde908591dc5871a8e48ea844b
https://github.com/dovecot/core/commit/926742088a3c66c11099386b2c6e80999c29f405
https://github.com/dovecot/core/commit/e5830ae88531a32db36c97ebf122cba9a39cf801
https://github.com/dovecot/core/commit/cb00e21fd70aae49453aedc1bb33c0765ab98667
https://github.com/dovecot/core/commit/5ecadd30746d91854b5aa484feff9c70ea91c20b
https://github.com/dovecot/core/commit/24f0bfefdbccaaaaab9f52be428648ec3f1c34d3
https://github.com/dovecot/core/commit/02c7c6dbb51748a5af8b0c70a499a3ab17de8490
https://github.com/dovecot/core/commit/729941c996ee0b0ede40f462c9e34ceb6a6bd049
https://github.com/dovecot/core/commit/8dbc754a31fbf7684e858aa1fb633b8dfbeb13cf
https://github.com/dovecot/core/commit/a175d654c3bc4d57641b871bbff99c10799b7d67
https://github.com/dovecot/core/commit/a676cb539fc1545c58d1341baa2f875f7b694133
https://github.com/dovecot/core/commit/0f46088a1af7b493db76a1d97ef4ecc6bb41f5a4
https://github.com/dovecot/core/commit/7868f5f49be91fe51795b477a5440e69c1540716
https://github.com/dovecot/core/commit/be53a118e789886efcdd57c513651c5148651161
https://github.com/dovecot/core/commit/19193f40b1d74e8d4ef88121992b4a61d84773e3