Summary
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.
Fixed packages 2
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux · 10 | gvisor-tap-vsock | 6:0.8.5-1.el10_0 |
| AlmaLinux · 10 | gvisor-tap-vsock-gvforwarder | 6:0.8.5-1.el10_0 |
Vulnerabilities 1
-
High 7.5
Potential denial of service in golang.org/x/crypto
SSH servers which implement file transfer protocols are vulnerable to a denial of service attack from clients which complete the key exchange slowly, or not at all, causing pending content to be read into memory, but never transmitted.