CVSS 3.1
7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HCVE-2025-38618
High (7.8). EPSS 0.2% chance of exploitation in the next 30 days.
In the Linux kernel, the following vulnerability has been resolved:
vsock: Do not allow binding to VMADDR_PORT_ANY
It is possible for a vsock to autobind to VMADDR_PORT_ANY. This can
cause a use-after-free when a connection is made to the bound socket.
The socket returned by accept() also has port VMADDR_PORT_ANY but is not
on the list of unbound sockets. Binding it will result in an extra
refcount decrement similar to the one fixed in fcdd2242c023 (vsock: Keep
the binding until socket destruction).
Modify the check in __vsock_bind_connectible() to also prevent binding
to VMADDR_PORT_ANY.
Severity
- EPSS
- 0.2% chance of exploitation in the next 30 days; higher than 6% of CVEs (scores of 2026-10-31)
- CWE
- CWE-416
- Published
- Modified
- Record from
- the NVD, synced
Affected
- debian:debian_linux
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/32950b1907919be86a7a2697d6f93d57068b3865
- https://git.kernel.org/stable/c/44bd006d5c93f6a8f28b106cbae2428c5d0275b7
- https://git.kernel.org/stable/c/8f01093646b49f6330bb2d36761983fd829472b1
- https://git.kernel.org/stable/c/aba0c94f61ec05315fa7815d21aefa4c87f6a9f4
- https://git.kernel.org/stable/c/c04a2c1ca25b9b23104124d3b2d349d934e302de