{"id":"ALSA-2025:3833","summary":"Important: gvisor-tap-vsock security update","details":"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.  \n\nSecurity Fix(es):  \n\n  * golang.org/x/crypto/ssh: Denial of Service in the Key Exchange of golang.org/x/crypto/ssh (CVE-2025-22869)\n\n\nFor 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.\n","modified":"2026-01-30T02:36:47.217842Z","published":"2025-04-14T00:00:00Z","related":["CVE-2025-22869"],"references":[{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2025:3833"},{"type":"REPORT","url":"https://access.redhat.com/security/cve/CVE-2025-22869"},{"type":"REPORT","url":"https://bugzilla.redhat.com/2348367"},{"type":"ADVISORY","url":"https://errata.almalinux.org/9/ALSA-2025-3833.html"}],"affected":[{"package":{"name":"gvisor-tap-vsock","ecosystem":"AlmaLinux:9","purl":"pkg:rpm/almalinux/gvisor-tap-vsock"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6:0.8.5-1.el9_5"}]}],"database_specific":{"source":"https://github.com/AlmaLinux/osv-database/blob/master/advisories/almalinux9/ALSA-2025:3833.json"}}],"schema_version":"1.7.3"}