Skip to navigation Skip to main content

Utilities

  • Subscriptions
  • Downloads
  • Red Hat Console
  • Get Support
Red Hat Customer Portal
  • Subscriptions
  • Downloads
  • Red Hat Console
  • Get Support
  • Products

    Top Products

    • Red Hat Enterprise Linux
    • Red Hat OpenShift
    • Red Hat Ansible Automation Platform
    All Products

    Downloads and Containers

    • Downloads
    • Packages
    • Containers

    Top Resources

    • Documentation
    • Product Life Cycles
    • Product Compliance
    • Errata
  • Knowledge

    Red Hat Knowledge Center

    • Knowledgebase Solutions
    • Knowledgebase Articles
    • Customer Portal Labs
    • Errata

    Top Product Docs

    • Red Hat Enterprise Linux
    • Red Hat OpenShift
    • Red Hat Ansible Automation Platform
    All Product Docs

    Training and Certification

    • About
    • Course Index
    • Certification Index
    • Skill Assessment
  • Security

    Red Hat Product Security Center

    • Security Updates
    • Security Advisories
    • Red Hat CVE Database
    • Errata

    References

    • Security Bulletins
    • Security Measurement
    • Severity Ratings
    • Security Data

    Top Resources

    • Security Labs
    • Backporting Policies
    • Security Blog
  • Support

    Red Hat Support

    • Support Cases
    • Troubleshoot
    • Get Support
    • Contact Red Hat Support

    Red Hat Community Support

    • Customer Portal Community
    • Community Discussions
    • Red Hat Accelerator Program

    Top Resources

    • Product Life Cycles
    • Customer Portal Labs
    • Red Hat JBoss Supported Configurations
    • Red Hat Lightspeed
Or troubleshoot an issue.

Select Your Language

  • English
  • Français
  • 한국어
  • 日本語
  • 中文 (中国)

Infrastructure and Management

  • Red Hat Enterprise Linux
  • Red Hat Satellite
  • Red Hat Subscription Management
  • Red Hat Lightspeed
  • Red Hat Ansible Automation Platform

Cloud Computing

  • Red Hat OpenShift
  • Red Hat OpenStack Platform
  • Red Hat OpenShift
  • Red Hat OpenShift AI
  • Red Hat OpenShift Dedicated
  • Red Hat Advanced Cluster Security for Kubernetes
  • Red Hat Advanced Cluster Management for Kubernetes
  • Red Hat Quay
  • Red Hat OpenShift Dev Spaces
  • Red Hat OpenShift Service on AWS

Storage

  • Red Hat Gluster Storage
  • Red Hat Hyperconverged Infrastructure
  • Red Hat Ceph Storage
  • Red Hat OpenShift Data Foundation

Runtimes

  • Red Hat Runtimes
  • Red Hat JBoss Enterprise Application Platform
  • Red Hat Data Grid
  • Red Hat JBoss Web Server
  • Red Hat build of Keycloak
  • Red Hat support for Spring Boot
  • Red Hat build of Node.js
  • Red Hat build of Quarkus

Integration and Automation

  • Red Hat Application Foundations
  • Red Hat Fuse
  • Red Hat AMQ
  • Red Hat 3scale API Management
All Products
Red Hat Product Errata RHBA-2025:4476 - Bug Fix Advisory
Issued:
2025-05-06
Updated:
2025-05-06

RHBA-2025:4476 - Bug Fix Advisory

  • Overview
  • Updated Packages

Synopsis

ktls-utils bug fix update

Type/Severity

Bug Fix Advisory

Red Hat Lightspeed patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for ktls-utils is now available for Red Hat Enterprise Linux 9.

Description

In-kernel TLS consumers need a mechanism to perform TLS handshakes on a connected socket to negotiate TLS session parameters that can then be programmed into the kernel's TLS record protocol engine. This package of software provides a TLS handshake user agent that listens for kernel requests and then materializes a user space socket endpoint on which to perform these handshakes. The resulting negotiated session parameters are passed back to the kernel via standard kTLS socket options.

Bug Fix(es):

  • ktls-utils: pass -ETIMEDOUT from GnuTLS to the kernel [rhel-9.5.z] (JIRA:RHEL-82301)

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux for x86_64 9 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6 x86_64
  • Red Hat Enterprise Linux Server - AUS 9.6 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 9 s390x
  • Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6 s390x
  • Red Hat Enterprise Linux for Power, little endian 9 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6 ppc64le
  • Red Hat Enterprise Linux for ARM 64 9 aarch64
  • Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6 aarch64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6 x86_64
  • Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6 aarch64
  • Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6 s390x

Fixes

(none)

CVEs

(none)

References

(none)

Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux for x86_64 9

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
x86_64
ktls-utils-0.11-1.el9_5.1.x86_64.rpm SHA-256: 50783b434e563504038c37d5ca3b49e90f724dc8164df607d1f62a91589589d7
ktls-utils-debuginfo-0.11-1.el9_5.1.x86_64.rpm SHA-256: 28363711821773c23e4421a555c3bee12ee086510a9d7df1763c13344418ba71
ktls-utils-debugsource-0.11-1.el9_5.1.x86_64.rpm SHA-256: ff27466d1319ae270a9fab08452f5b95afecddf9085bd8424fa6dad2b2ebfaa8

Red Hat Enterprise Linux for x86_64 - Extended Update Support 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
x86_64
ktls-utils-0.11-1.el9_5.1.x86_64.rpm SHA-256: 50783b434e563504038c37d5ca3b49e90f724dc8164df607d1f62a91589589d7
ktls-utils-debuginfo-0.11-1.el9_5.1.x86_64.rpm SHA-256: 28363711821773c23e4421a555c3bee12ee086510a9d7df1763c13344418ba71
ktls-utils-debugsource-0.11-1.el9_5.1.x86_64.rpm SHA-256: ff27466d1319ae270a9fab08452f5b95afecddf9085bd8424fa6dad2b2ebfaa8

Red Hat Enterprise Linux Server - AUS 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
x86_64
ktls-utils-0.11-1.el9_5.1.x86_64.rpm SHA-256: 50783b434e563504038c37d5ca3b49e90f724dc8164df607d1f62a91589589d7
ktls-utils-debuginfo-0.11-1.el9_5.1.x86_64.rpm SHA-256: 28363711821773c23e4421a555c3bee12ee086510a9d7df1763c13344418ba71
ktls-utils-debugsource-0.11-1.el9_5.1.x86_64.rpm SHA-256: ff27466d1319ae270a9fab08452f5b95afecddf9085bd8424fa6dad2b2ebfaa8

Red Hat Enterprise Linux for IBM z Systems 9

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
s390x
ktls-utils-0.11-1.el9_5.1.s390x.rpm SHA-256: a5c8438602fba1f691e4b43863f896f600c93c61662de897c9bf02f1a87cdb92
ktls-utils-debuginfo-0.11-1.el9_5.1.s390x.rpm SHA-256: c11076e2d7571eb4a3672af529a94d4915fc70afb52a8f29333afb397d88b50d
ktls-utils-debugsource-0.11-1.el9_5.1.s390x.rpm SHA-256: 96fe7fc9473a55f51382ccbb04d56c6c564709b152f21460c78bb7826648d79d

Red Hat Enterprise Linux for IBM z Systems - Extended Update Support 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
s390x
ktls-utils-0.11-1.el9_5.1.s390x.rpm SHA-256: a5c8438602fba1f691e4b43863f896f600c93c61662de897c9bf02f1a87cdb92
ktls-utils-debuginfo-0.11-1.el9_5.1.s390x.rpm SHA-256: c11076e2d7571eb4a3672af529a94d4915fc70afb52a8f29333afb397d88b50d
ktls-utils-debugsource-0.11-1.el9_5.1.s390x.rpm SHA-256: 96fe7fc9473a55f51382ccbb04d56c6c564709b152f21460c78bb7826648d79d

Red Hat Enterprise Linux for Power, little endian 9

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
ppc64le
ktls-utils-0.11-1.el9_5.1.ppc64le.rpm SHA-256: e46d53f843e9c38891c55416b217b53ad74039910ec3d53f9aa055a2877e00f4
ktls-utils-debuginfo-0.11-1.el9_5.1.ppc64le.rpm SHA-256: 9d6beb13ffa4301ecaa61a98c143fd3f4129aee20c1908a3e7a4daae0da0879d
ktls-utils-debugsource-0.11-1.el9_5.1.ppc64le.rpm SHA-256: 85204b9e661f33818616c72f3e62b3a9a0c74223feac1c285e1f5eabd25412f2

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
ppc64le
ktls-utils-0.11-1.el9_5.1.ppc64le.rpm SHA-256: e46d53f843e9c38891c55416b217b53ad74039910ec3d53f9aa055a2877e00f4
ktls-utils-debuginfo-0.11-1.el9_5.1.ppc64le.rpm SHA-256: 9d6beb13ffa4301ecaa61a98c143fd3f4129aee20c1908a3e7a4daae0da0879d
ktls-utils-debugsource-0.11-1.el9_5.1.ppc64le.rpm SHA-256: 85204b9e661f33818616c72f3e62b3a9a0c74223feac1c285e1f5eabd25412f2

Red Hat Enterprise Linux for ARM 64 9

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
aarch64
ktls-utils-0.11-1.el9_5.1.aarch64.rpm SHA-256: c9a8e696d0e224298ac20bad112f796e46c463df709532f6afcb256a3c3ee644
ktls-utils-debuginfo-0.11-1.el9_5.1.aarch64.rpm SHA-256: e61953d1c005bb8bc8f958345028901c44393ebc5d637647dc6dd2cb76139e41
ktls-utils-debugsource-0.11-1.el9_5.1.aarch64.rpm SHA-256: f7775bb649c872377926e57326791c1785ef4228c5718555d83d09bc5d38c0c7

Red Hat Enterprise Linux for ARM 64 - Extended Update Support 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
aarch64
ktls-utils-0.11-1.el9_5.1.aarch64.rpm SHA-256: c9a8e696d0e224298ac20bad112f796e46c463df709532f6afcb256a3c3ee644
ktls-utils-debuginfo-0.11-1.el9_5.1.aarch64.rpm SHA-256: e61953d1c005bb8bc8f958345028901c44393ebc5d637647dc6dd2cb76139e41
ktls-utils-debugsource-0.11-1.el9_5.1.aarch64.rpm SHA-256: f7775bb649c872377926e57326791c1785ef4228c5718555d83d09bc5d38c0c7

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
ppc64le
ktls-utils-0.11-1.el9_5.1.ppc64le.rpm SHA-256: e46d53f843e9c38891c55416b217b53ad74039910ec3d53f9aa055a2877e00f4
ktls-utils-debuginfo-0.11-1.el9_5.1.ppc64le.rpm SHA-256: 9d6beb13ffa4301ecaa61a98c143fd3f4129aee20c1908a3e7a4daae0da0879d
ktls-utils-debugsource-0.11-1.el9_5.1.ppc64le.rpm SHA-256: 85204b9e661f33818616c72f3e62b3a9a0c74223feac1c285e1f5eabd25412f2

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
x86_64
ktls-utils-0.11-1.el9_5.1.x86_64.rpm SHA-256: 50783b434e563504038c37d5ca3b49e90f724dc8164df607d1f62a91589589d7
ktls-utils-debuginfo-0.11-1.el9_5.1.x86_64.rpm SHA-256: 28363711821773c23e4421a555c3bee12ee086510a9d7df1763c13344418ba71
ktls-utils-debugsource-0.11-1.el9_5.1.x86_64.rpm SHA-256: ff27466d1319ae270a9fab08452f5b95afecddf9085bd8424fa6dad2b2ebfaa8

Red Hat Enterprise Linux for ARM 64 - 4 years of updates 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
aarch64
ktls-utils-0.11-1.el9_5.1.aarch64.rpm SHA-256: c9a8e696d0e224298ac20bad112f796e46c463df709532f6afcb256a3c3ee644
ktls-utils-debuginfo-0.11-1.el9_5.1.aarch64.rpm SHA-256: e61953d1c005bb8bc8f958345028901c44393ebc5d637647dc6dd2cb76139e41
ktls-utils-debugsource-0.11-1.el9_5.1.aarch64.rpm SHA-256: f7775bb649c872377926e57326791c1785ef4228c5718555d83d09bc5d38c0c7

Red Hat Enterprise Linux for IBM z Systems - 4 years of updates 9.6

SRPM
ktls-utils-0.11-1.el9_5.1.src.rpm SHA-256: 4fcf37437cc070b98743c2c686c4694ce6f8674678c060942c2cf7008dd55fcf
s390x
ktls-utils-0.11-1.el9_5.1.s390x.rpm SHA-256: a5c8438602fba1f691e4b43863f896f600c93c61662de897c9bf02f1a87cdb92
ktls-utils-debuginfo-0.11-1.el9_5.1.s390x.rpm SHA-256: c11076e2d7571eb4a3672af529a94d4915fc70afb52a8f29333afb397d88b50d
ktls-utils-debugsource-0.11-1.el9_5.1.s390x.rpm SHA-256: 96fe7fc9473a55f51382ccbb04d56c6c564709b152f21460c78bb7826648d79d

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

Red Hat LinkedIn YouTube Facebook X, formerly Twitter

Quick Links

  • Downloads
  • Subscriptions
  • Support Cases
  • Customer Service
  • Product Documentation

Help

  • Contact Us
  • Customer Portal FAQ
  • Log-in Assistance

Site Info

  • Trust Red Hat
  • Browser Support Policy
  • Accessibility
  • Awards and Recognition
  • Colophon

Related Sites

  • redhat.com
  • developers.redhat.com
  • connect.redhat.com
  • cloud.redhat.com

Red Hat legal and privacy links

  • About Red Hat
  • Jobs
  • Events
  • Locations
  • Contact Red Hat
  • Red Hat Blog
  • Inclusion at Red Hat
  • Cool Stuff Store
  • Red Hat Summit
© 2025 Red Hat

Red Hat legal and privacy links

  • Privacy statement
  • Terms of use
  • All policies and guidelines
  • Digital accessibility