An update for gvisor-tap-vsock is now available for Red Hat Enterprise Linux 9.

Red Hat Product Security has rated this update as having a security impact of
 Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

A replacement for libslirp and VPNKit, written in pure Go. It is based on the
 network stack of gVisor. Compared to libslirp, gvisor-tap-vsock brings a configurable DNS server and dynamic port forwarding.

Security Fix(es):

* golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of
 golang.org/x/crypto/ssh (CVE-2025-22869)

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.

This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.

CVE-2025-22869: Allocation of Resources Without Limits or Throttling (CWE-770)