CVE-2023-51764
postfixVulnerabilityCVSS 5.3PatchedPoC
A public proof-of-concept or exploit code is available, raising the risk of active exploitation. A fixed version is available (see the table below).
Recommended action: Update to the fixed version listed for your distribution using the native package manager.
Severity metrics
CVSS 3.1 : 5.3 MEDIUM
Attack vectorNetwork (remote)
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
Confidentiality impactNone
Integrity impactLow
Availability impactNone
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Affected & fixed versions by distribution
Versions are the native distribution strings (backport-aware): RHEL/Debian/SUSE backport fixes, so compare with the distro version comparator (dpkg / rpm / vercmp), not the upstream version.
| Distribution | Package | Affected | Fixed version | Status |
|---|---|---|---|---|
| Debian:11 | postfix | - | 3.5.23-0+deb11u1 | fixed |
| Debian:12 | postfix | - | 3.7.9-0+deb12u1 | fixed |
| Debian:13 | postfix | - | 3.8.4-1 | fixed |
| Debian:14 | postfix | - | 3.8.4-1 | fixed |
| Debian:10 | postfix | - | 3.4.23-0+deb10u2 | fixed |
| Ubuntu:Pro:14.04:LTS | postfix | - | 2.11.0-1ubuntu1.2+esm3 | fixed |
| Ubuntu:Pro:16.04:LTS | postfix | - | 3.1.0-3ubuntu0.4+esm3 | fixed |
| Ubuntu:Pro:18.04:LTS | postfix | - | 3.3.0-1ubuntu0.4+esm3 | fixed |
| Ubuntu:20.04:LTS | postfix | - | 3.4.13-0ubuntu1.4 | fixed |
| Ubuntu:22.04:LTS | postfix | - | 3.6.4-1ubuntu1.3 | fixed |
| Ubuntu:Pro:14.04:LTS | postfix | - | 2.11.0-1ubuntu1.2+esm2 | fixed |
| Ubuntu:Pro:16.04:LTS | postfix | - | 3.1.0-3ubuntu0.4+esm2 | fixed |
| Ubuntu:Pro:18.04:LTS | postfix | - | 3.3.0-1ubuntu0.4+esm2 | fixed |
| Ubuntu:20.04:LTS | postfix | - | 3.4.13-0ubuntu1.3 | fixed |
| Ubuntu:22.04:LTS | postfix | - | 3.6.4-1ubuntu1.2 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP5 | postfix | - | 3.7.3-150500.3.11.1 | fixed |
| SUSE:Linux Enterprise Module for Server Applications 15 SP5 | postfix | - | 3.7.3-150500.3.11.1 | fixed |
| openSUSE:Leap 15.5 | postfix | - | 3.7.3-150500.3.11.1 | fixed |
| SUSE:Linux Enterprise Module for Basesystem 15 SP4 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise Module for Server Applications 15 SP4 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-ESPOS | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOS | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise High Performance Computing 15 SP4-LTSS | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise Real Time 15 SP4 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP3-LTSS | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise Server 15 SP4-LTSS | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP3 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 15 SP4 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Manager Proxy 4.3 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Manager Server 4.3 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Enterprise Storage 7.1 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| openSUSE:Leap 15.4 | postfix | - | 3.5.9-150300.5.15.1 | fixed |
| SUSE:Linux Enterprise Software Development Kit 12 SP5 | postfix | - | 3.2.10-3.30.1 | fixed |
| SUSE:Linux Enterprise Server 12 SP5 | postfix | - | 3.2.10-3.30.1 | fixed |
| SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | postfix | - | 3.2.10-3.30.1 | fixed |
| openSUSE:Tumbleweed | postfix | - | 3.8.4-2.1 | fixed |
| Red Hat:enterprise_linux:9::appstream | postfix | - | 2:3.5.25-1.el9 | fixed |