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SUSE: 2025:01745-1 important: dnsdist denial of service fix

suse
Calendar Grey May 29, 2025
Scroller Suse
Essential dnsdist patch resolves stack overflow vulnerabilities causing potential denial of service. Protect your infrastructure immediately!
* bsc#1243378 Cross-References: * CVE-2025-30193

Summary

## This update for dnsdist fixes the following issues: * CVE-2025-30193: stack exhaustion when processing too many queries on incoming TCP connections leads to a denial-of-service (bsc#1243378). ## 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: * SUSE Manager Proxy 4.3 zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Proxy-4.3-2025-1745=1 * SUSE Manager Retail Branch Server 4.3 zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Retail-Branch- Server-4.3-2025-1745=1 * SUSE Manager Server 4.3 zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.3-2025-1745=1 * openSUSE Leap 15.4 zypper in -t patch SUSE-2025-1745=1 * openSUSE Leap 15.6

Topics%20covered

Topics Covered

security advisory denial of service software update important SUSE dnsdist

References

* bsc#1243378

Cross-

* CVE-2025-30193

CVSS scores:

* CVE-2025-30193 ( SUSE ): 8.7

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

* CVE-2025-30193 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-30193 ( NVD ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products:

* Basesystem Module 15-SP6

* openSUSE Leap 15.4

* openSUSE Leap 15.6

* SUSE Linux Enterprise Desktop 15 SP6

* SUSE Linux Enterprise High Performance Computing 15 SP4

* SUSE Linux Enterprise High Performance Computing 15 SP5

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP4

* SUSE Linux Enterprise High Performance Computing ESPOS 15 SP5

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP4

* SUSE Linux Enterprise High Performance Computing LTSS 15 SP5

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:01745-1
Release Date: 2025-05-29T12:22:10Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service software update important SUSE dnsdist

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