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SUSE 15 SP7: 2025:01743-1 critical update for dnsdist DoS vulnerabilities

suse
Calendar Grey May 29, 2025
Dist Suse Esm H88
Crucial notification regarding dnsdist vulnerabilities affecting SUSE Linux environments. Apply the security patch immediately.
* bsc#1242028 * bsc#1243378 Cross-References: * CVE-2025-30193

Summary

## This update for dnsdist fixes the following issues: Update to version 1.9.10. * CVE-2025-30194: illegal memory access (double-free) when processing specially crafted DoH exchanges leads to a denial-of-service (bsc#1242028). * 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: * Basesystem Module 15-SP7 zypper in -t patch SUSE-SLE-Module-Basesystem-15-SP7-2025-1743=1 ## Package List: * Basesystem Module 15-SP7 (aarch64 ppc64le s390x x86_64) * dnsdist-debuginfo-1.9.10-150700.3.3.1

Topics%20covered

Topics Covered

security advisory update DoS fix SUSE dnsdist

References

* bsc#1242028

* bsc#1243378

Cross-

* CVE-2025-30193

* CVE-2025-30194

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

* CVE-2025-30194 ( 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-2025-30194 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-30194 ( 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-SP7

* SUSE Linux Enterprise Desktop 15 SP7

* SUSE Linux Enterprise Real Time 15 SP7

* SUSE Linux Enterprise Server 15 SP7

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:01743-1
Release Date: 2025-05-29T11:44:30Z
Rating: important

Topics%20covered

Topics Covered

security advisory update DoS fix SUSE dnsdist

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