CVE-2020-12673 — Out-of-bounds Read in Dovecot

CWE-125 — Out-of-bounds Read12 documents8 sources
Severity
7.5HIGHNVD
EPSS
4.4%
top 11.00%
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, sending a specially formatted NTLM request will crash the auth service because of an out-of-bounds read.

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+2

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-25jr-qm4x-mvhx: In Dovecot before 2↗2022-05-24
▶
OSV
dovecot vulnerabilities↗2020-08-17
▶
OSV
CVE-2020-12673: In Dovecot before 2↗2020-08-12
▶
OSV
dovecot vulnerabilities↗2020-08-12
▶
CVEList
CVE-2020-12673: In Dovecot before 2↗2020-08-12
▶

📋Vendor Advisories

4
Ubuntu
Dovecot vulnerabilities↗2020-08-17
▶
Red Hat
dovecot: Out of bound reads in dovecot NTLM implementation↗2020-08-12
▶
Ubuntu
Dovecot vulnerabilities↗2020-08-12
▶
Debian
CVE-2020-12673: dovecot - In Dovecot before 2.3.11.3, sending a specially formatted NTLM request will cras...↗2020
▶

💬Community

2
Bugzilla
CVE-2020-12673 dovecot: Out of bound reads in dovecot NTLM implementation [fedora-all]↗2020-08-13
▶
Bugzilla
CVE-2020-12673 dovecot: Out of bound reads in dovecot NTLM implementation↗2020-08-05
▶
CVE-2020-12673 — Out-of-bounds Read in Dovecot | cvebase