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SUSE glibc Moderate Issue in DNS Handling Resolution 2026-1369-1

suse
Calendar Grey April 15, 2026
Scroller Suse
Critical SUSE update addresses two vulnerabilities in glibc resolving DNS issues, enhancing system security.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for glibc fixes the following issues: * CVE-2026-4437: incorrect DNS response parsing via crafted DNS server response (bsc#1260078). * CVE-2026-4438: invalid DNS hostname returned via gethostbyaddr functions (bsc#1260082). ## 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: * Development Tools Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Development-Tools-15-SP7-2026-1369=1 * SUSE Linux Enterprise Server 15 SP6 LTSS zypper in -t patch SUSE-SLE-Product-SLES-15-SP6-LTSS-2026-1369=1 * SUSE Linux Enterprise Server for SAP Applications 15 SP6 zypper in -t patch SUSE-SLE-Product-SLES_SAP-15-SP6-2026-1369=1 * openSUSE Leap 15.6

Topics%20covered

Topics Covered

security advisory moderate SuSE patch glibc DNS

References

* bsc#1260078

* bsc#1260082

Cross-

* CVE-2026-4437

* CVE-2026-4438

CVSS scores:

* CVE-2026-4437 ( SUSE ): 5.7

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

* CVE-2026-4437 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

* CVE-2026-4437 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2026-4438 ( SUSE ): 5.7

CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

* CVE-2026-4438 ( SUSE ): 4.7 CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N

* CVE-2026-4438 ( NVD ): 5.4 CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Products:

* Basesystem Module 15-SP7

* Development Tools Module 15-SP7

* openSUSE Leap 15.6

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP6

Announcement ID: SUSE-SU-2026:1369-1
Release Date: 2026-04-15T14:43:10Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE patch glibc DNS

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