CVE-2020-12673 describes an out-of-bounds read vulnerability in Dovecot versions prior to 2.3.11.3, affecting distributions like Canonical, Debian, and Fedora. This flaw allows an unauthenticated attacker to crash the authentication service by sending a specially crafted NTLM request. With a CVSS score of 7.5 (High), it represents a significant availability risk, though it has low exploitability and no known active exploitation or publicly available exploit code. Community discussion and media coverage for this CVE are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.3.11.3CPE matchmatch criteria | cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | ||
14.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* | ||
16.04CPE matchmatch criteria | cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
dovecot: Out of bound reads in dovecot NTLM implementation
Aug 12, 2020Specially crafted NTLM package can crash auth service
Aug 12, 2020Specially crafted NTLM package can crash auth service
Aug 12, 2020Specially crafted NTLM package can crash auth service
Aug 12, 2020Specially crafted NTLM package can crash auth service
Aug 12, 2020CVE-2020-12673: Specially crafted NTLM package can crash auth service
Aug 12, 2020Specially crafted NTLM package can crash auth service
Aug 12, 2020CVE-2020-12673: Specially crafted NTLM package can crash auth service
Aug 12, 2020