CVE-2023-51764

postfix-lmdb: The postfix packages provide a Mail Transport Agent (MTA), which supports protocols like LDAP, SMTP AUTH (SASL), and...

CVE-2023-51764 is fixed in 18 products on 1 platform, first by postfix 3.3.0-1ubuntu0.4+esm3, released December 23, 2023. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.3
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0264
85th percentile

The postfix packages provide a Mail Transport Agent (MTA), which supports protocols like LDAP, SMTP AUTH (SASL), and TLS. Security Fix(es): * postfix: SMTP smuggling vulnerability (CVE-2023-51764) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 9.5 Release Notes linked from the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
postfix · Debian 12.15 (bookworm) 3.7.9-0+deb12u1 DEBIAN-CVE-2023-51764 Dec 24, 2023
postfix · Debian 13.5 (trixie) 3.8.4-1 DEBIAN-CVE-2023-51764 Dec 24, 2023
postfix · Debian 14 3.8.4-1 DEBIAN-CVE-2023-51764 Dec 24, 2023
postfix · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix · rocky 9 2:3.5.25-1.el9 RLSA-2024:9243 Mar 17, 2025
postfix-cdb · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-cdb · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix-cdb 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix-cdb · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix-cdb 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix-cdb · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix-cdb 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix-cdb · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-cdb · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-cdb · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-cdb-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-debugsource · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-ldap · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-ldap · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix-ldap 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix-ldap · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix-ldap 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix-ldap · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix-ldap 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix-ldap · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-ldap · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-ldap · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-ldap-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-lmdb · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-lmdb · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix-lmdb 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix-lmdb · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix-lmdb 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix-lmdb · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix-lmdb 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix-lmdb · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-lmdb · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-lmdb · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-lmdb-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-mysql · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-mysql · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix-mysql 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix-mysql · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix-mysql 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix-mysql · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix-mysql 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix-mysql · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-mysql · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-mysql · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-mysql-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-pcre · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-pcre · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix-pcre 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix-pcre · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix-pcre 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix-pcre · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix-pcre 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix-pcre · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-pcre · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-pcre · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-pcre-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-perl-scripts · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-perl-scripts · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-perl-scripts · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-perl-scripts · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-pgsql · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-pgsql · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix-pgsql 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix-pgsql · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix-pgsql 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix-pgsql · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix-pgsql 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix-pgsql · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-pgsql · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-pgsql · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-pgsql-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-sqlite · RHEL 9 2:3.5.25-1.el9 RHSA-2024:9243 Nov 12, 2024
postfix-sqlite · Ubuntu 18.04.6 LTS (bionic) 3.3.0-1ubuntu0.4+esm3 postfix-sqlite 3.3.0-1ubuntu0.4+esm3 Dec 23, 2023
postfix-sqlite · Ubuntu 20.04 LTS (focal) 3.4.13-0ubuntu1.4 postfix-sqlite 3.4.13-0ubuntu1.4 Dec 23, 2023
postfix-sqlite · Ubuntu 22.04.1 LTS (jammy) 3.6.4-1ubuntu1.3 postfix-sqlite 3.6.4-1ubuntu1.3 Dec 23, 2023
postfix-sqlite · almalinux 9 2:3.5.25-1.el9 ALSA-2024:9243 Nov 12, 2024
postfix-sqlite · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024
postfix-sqlite · ol 9 2:3.5.25-1.el9 ELSA-2024-9243 Nov 14, 2024
postfix-sqlite-debuginfo · amzn 2023 2:3.7.2-4.amzn2023.0.5 ALAS2023-2024-495 Jan 19, 2024

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