Alerts This Week
Warning Icon 1 1,295
Alerts This Week
Warning Icon 1 1,295

SUSE: netty Important DoS Fix CVE-2025-55163 2025:03021-1

suse
Calendar Grey August 29, 2025
Dist Suse Esm H88
SUSE has rolled out a new patch for netty to mitigate the vulnerability identified as CVE-2025-55163, enhancing the resilience of system performance.
* bsc#1247991 Cross-References: * CVE-2025-55163

Summary

## This update for netty fixes the following issues: * CVE-2025-55163: Fixed "MadeYouReset" DoS attack in HTTP/2 protocol (including DNS over HTTPS) (bsc#1247991) ## 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 Server 4.3 LTS zypper in -t patch SUSE-SLE-Product-SUSE-Manager-Server-4.3-LTS-2025-3021=1 ## Package List: * SUSE Manager Server 4.3 LTS (noarch) * netty-4.1.44.Final-150400.3.9.1

Topics%20covered

Topics Covered

security advisory denial of service SuSE important http protocol netty

References

* bsc#1247991

Cross-

* CVE-2025-55163

CVSS scores:

* CVE-2025-55163 ( 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-2025-55163 ( SUSE ): 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

* CVE-2025-55163 ( NVD ): 8.2

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Products:

* SUSE Manager Server 4.3

* SUSE Manager Server 4.3 LTS

An update that solves one vulnerability can now be installed.

##

* https://www.suse.com/security/cve/CVE-2025-55163.html

* https://bugzilla.suse.com/show_bug.cgi?id=1247991

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2025:03021-1
Release Date: 2025-08-29T09:42:17Z
Rating: important

Topics%20covered

Topics Covered

security advisory denial of service SuSE important http protocol netty

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here