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openSUSE Postfix Moderate Buffer Overread Vuln 2026-2781-1

opensuse
Calendar Grey July 6, 2026
Dist Opensuse Esm H88
Update for postfix addresses vulnerability CVE-2026-43964 in openSUSE. Install recommended patches for system security.
An update that solves one vulnerability can now be installed.

Description

This update for postfix fixes the following issue

* CVE-2026-43964: buffer overread and process crash via an enhanced status

code that lacks text after the third number (bsc#1264062).

Topics%20covered

Topics Covered

security advisory moderate threat postfix OpenSUSE buffer overread

Patch

## Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like

YaST online_update or "zypper patch".

Alternatively you can run the command listed for your product:

* Legacy Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Legacy-15-SP7-2026-2781=1

* Basesystem Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2026-2781=1

* openSUSE Leap 15.6

zypper in -t patch SUSE-2026-2781=1

* Server Applications Module 15-SP7

zypper in -t patch SUSE-SLE-Module-Server-Applications-15-SP7-2026-2781=1

Package List

* Legacy Module 15-SP7 (aarch64 ppc64le s390x x86_64)

* postfix-bdb-3.8.4-150600.3.6.1

* postfix-bdb-lmdb-debuginfo-3.8.4-150600.3.6.1

* postfix-bdb-lmdb-3.8.4-150600.3.6.1

* postfix-bdb-debugsource-3.8.4-150600.3.6.1

* postfix-bdb-debuginfo-3.8.4-150600.3.6.1

* Server Applications Module 15-SP7 (aarch64 ppc64le s390x x86_64)

* postfix-mysql-debuginfo-3.8.4-150600.3.6.1

* postfix-mysql-3.8.4-150600.3.6.1

* postfix-debugsource-3.8.4-150600.3.6.1

* postfix-debuginfo-3.8.4-150600.3.6.1

* openSUSE Leap 15.6 (aarch64 i586 ppc64le s390x x86_64)

* postfix-ldap-debuginfo-3.8.4-150600.3.6.1

* postfix-mysql-debuginfo-3.8.4-150600.3.6.1

* postfix-postgresql-3.8.4-150600.3.6.1

* postfix-debugsource-3.8.4-150600.3.6.1

* postfix-bdb-3.8.4-150600.3.6.1

* postfix-debuginfo-3.8.4-150600.3.6.1

* postfix-3.8.4-150600.3.6.1

* postfix-bdb-lmdb-debuginfo-3.8.4-150600.3.6.1

* postfix-bdb-lmdb-3.8.4-150600.3.6.1

* postfix-ldap-3.8.4-150600.3.6.1

* postfix-bdb-debugsource-3.8.4-150600.3.6.1

* postfix-mysql-3.8.4-150600.3.6.1

*...

Read the Full Advisory

References

* bsc#1264062

## References:

* https://www.suse.com/security/cve/CVE-2026-43964.html

* https://bugzilla.suse.com/show_bug.cgi?id=1264062

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:2781-1
Release Date: 2026-07-06T14:12:18Z
Affected Products: * Basesystem Module 15-SP7 * Legacy Module 15-SP7 * openSUSE Leap 15.6 * Server Applications Module 15-SP7 * SUSE Linux Enterprise Desktop 15 SP7 * SUSE Linux Enterprise Real Time 15 SP7 * SUSE Linux Enterprise Server 15 SP7 * SUSE Linux Enterprise Server for SAP Applications 15 SP7

Topics%20covered

Topics Covered

security advisory moderate threat postfix OpenSUSE buffer overread

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