RHSA-2025:3833: Important: gvisor-tap-vsock security update
First published: Mon Apr 14 2025(Updated: )
A replacement for libslirp and VPNKit, written in pure Go. It is based on the network stack of gVisor and is used to provide networking for podman-machine virtual machines. Compared to libslirp, gvisor-tap-vsock brings a configurable DNS server and dynamic port forwarding.<br>Security Fix(es):<br><li> golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of golang.org/x/crypto/ssh (CVE-2025-22869)</li> For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Enterprise Linux 8 | ||
| Red Hat Enterprise Linux Server for IBM z Systems | ||
| Red Hat Enterprise Linux for ARM 64 | ||
| Red Hat Enterprise Linux for Power, little endian - Extended Update Support | ||
| redhat/gvisor-tap-vsock | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock-debuginfo | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock-debugsource | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock-debuginfo | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock-debugsource | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock-debuginfo | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock-debugsource | <0.8.5-1.el9_5 | 0.8.5-1.el9_5 |
| redhat/gvisor-tap-vsock | <0.8.5-1.el9_5.aa | 0.8.5-1.el9_5.aa |
| redhat/gvisor-tap-vsock-debuginfo | <0.8.5-1.el9_5.aa | 0.8.5-1.el9_5.aa |
| redhat/gvisor-tap-vsock-debugsource | <0.8.5-1.el9_5.aa | 0.8.5-1.el9_5.aa |
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Reference Links
Frequently Asked Questions
What is the severity of RHSA-2025:3833?
RHSA-2025:3833 has been classified as an important security update affecting the gvisor-tap-vsock component.
How do I fix RHSA-2025:3833?
To remediate RHSA-2025:3833, you should update to gvisor-tap-vsock version 0.8.5-1.el9_5 or later.
Which systems are affected by RHSA-2025:3833?
RHSA-2025:3833 affects Red Hat Enterprise Linux for x86_64, IBM z Systems, ARM 64, and Power architectures.
What is gvisor-tap-vsock in the context of RHSA-2025:3833?
gvisor-tap-vsock is a networking component used by podman-machine virtual machines that provides features like configurable DNS and dynamic port forwarding.
Is there a specific version of gvisor-tap-vsock that addresses RHSA-2025:3833?
Yes, the recommended version to address RHSA-2025:3833 is gvisor-tap-vsock 0.8.5-1.el9_5.
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