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Alerts This Week
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SUSE Postgresql18 Important Buffer Overrun Fix Advisory 2026-20921-1

suse
Calendar Grey April 1, 2026
Dist Suse Esm H88
This important update for postgresql18 on SUSE addresses five issues and enhances security considerably.
An update that solves five vulnerabilities and has one fix can now be installed.

Summary

## This update for postgresql18 fixes the following issues: * Update to version 18.3. (bsc#1258754) * CVE-2026-2003: Guard against unexpected dimensions of oidvector/int2vector (bsc#1258008) * CVE-2026-2004: Harden selectivity estimators against being attached to operators that accept unexpected data types. (bsc#1258009) * CVE-2026-2005: Fix buffer overrun in contrib/pgcrypto's PGP decryption functions. (bsc#1258010) * CVE-2026-2006: Fix inadequate validation of multibyte character lengths. (bsc#1258011) * CVE-2026-2007: Harden contrib/pg_trgm against changes in string lowercasing behavior. (bsc#1258012) ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".

Topics%20covered

Topics Covered

security advisory SuSE buffer overrun important harden postgresql18

References

* bsc#1258008

* bsc#1258009

* bsc#1258010

* bsc#1258011

* bsc#1258012

* bsc#1258754

Cross-

* CVE-2026-2003

* CVE-2026-2004

* CVE-2026-2005

* CVE-2026-2006

* CVE-2026-2007

CVSS scores:

* CVE-2026-2003 ( SUSE ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

* CVE-2026-2003 ( NVD ): 4.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

* CVE-2026-2004 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2004 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2005 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2005 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2006 ( SUSE ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-2006 ( NVD ): 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:20921-1
Release Date: 2026-03-20T14:50:43Z
Rating: important

Topics%20covered

Topics Covered

security advisory SuSE buffer overrun important harden postgresql18

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