CVE-2020-12100 — Uncontrolled Recursion in Dovecot

CWE-674 — Uncontrolled Recursion12 documents8 sources
Severity
7.5HIGHNVD
EPSS
19.6%
top 4.57%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
DovecotCanonical Ubuntu LinuxDebian Linux+1 more
Timeline
PublishedAug 12
Latest updateMay 24

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶NVDdovecot/dovecot< 2.3.11.3
▶Debiandovecot/dovecot< 1:2.3.11.3+dfsg1-1+3
▶Ubuntudovecot/dovecot< 1:2.2.22-1ubuntu2.13+3

Also affects: Debian Linux 10.0, 9.0, Fedora 31, 32, 33, Ubuntu Linux 14.04, 16.04, 18.04, 20.04

🔴Vulnerability Details

5
GHSA
GHSA-pq8h-22gg-vpmw: In Dovecot before 2↗2022-05-24
▶
OSV
dovecot vulnerabilities↗2020-08-17
▶
OSV
dovecot vulnerabilities↗2020-08-12
▶
OSV
CVE-2020-12100: In Dovecot before 2↗2020-08-12
▶
CVEList
CVE-2020-12100: In Dovecot before 2↗2020-08-12
▶

📋Vendor Advisories

4
Ubuntu
Dovecot vulnerabilities↗2020-08-17
▶
Ubuntu
Dovecot vulnerabilities↗2020-08-12
▶
Red Hat
dovecot: Resource exhaustion via deeply nested MIME parts↗2020-08-12
▶
Debian
CVE-2020-12100: dovecot - In Dovecot before 2.3.11.3, uncontrolled recursion in submission, lmtp, and lda ...↗2020
▶

💬Community

2
Bugzilla
CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts [fedora-all]↗2020-08-13
▶
Bugzilla
CVE-2020-12100 dovecot: Resource exhaustion via deeply nested MIME parts↗2020-08-05
▶
CVE-2020-12100 — Uncontrolled Recursion in Dovecot | cvebase