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openSUSE Leap 15.3 Postfix Moderate Buffer Overread SUSE-SU-2026-2489-1

opensuse
Calendar Grey June 22, 2026
Dist Opensuse Esm H88
Update for openSUSE addresses moderate buffer overread issue in Postfix, enhancing system security and stability.
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 postfix OpenSUSE buffer overread process crash

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:

* openSUSE Leap 15.3

zypper in -t patch SUSE-2026-2489=1

Package List

* openSUSE Leap 15.3 (aarch64 i586 ppc64le s390x x86_64)

* postfix-postgresql-debuginfo-3.5.9-150300.5.20.1

* postfix-postgresql-3.5.9-150300.5.20.1

* postfix-mysql-debuginfo-3.5.9-150300.5.20.1

* postfix-bdb-lmdb-debuginfo-3.5.9-150300.5.20.1

* postfix-bdb-debuginfo-3.5.9-150300.5.20.1

* postfix-devel-3.5.9-150300.5.20.1

* postfix-debugsource-3.5.9-150300.5.20.1

* postfix-ldap-3.5.9-150300.5.20.1

* postfix-debuginfo-3.5.9-150300.5.20.1

* postfix-bdb-3.5.9-150300.5.20.1

* postfix-ldap-debuginfo-3.5.9-150300.5.20.1

* postfix-3.5.9-150300.5.20.1

* postfix-bdb-debugsource-3.5.9-150300.5.20.1

* postfix-bdb-lmdb-3.5.9-150300.5.20.1

* postfix-mysql-3.5.9-150300.5.20.1

* openSUSE Leap 15.3 (noarch)

* postfix-doc-3.5.9-150300.5.20.1

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-2026:2489-1
Release Date: 2026-06-22T12:16:27Z
Affected Products: * openSUSE Leap 15.3

Topics%20covered

Topics Covered

security advisory moderate postfix OpenSUSE buffer overread process crash

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