CVE-2025-38618 — Use After Free in Linux
Severity
7.8HIGHNVD
OSV7.1OSV5.5OSV4.7
EPSS
0.0%
top 96.30%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedAug 22
Latest updateMar 1
Description
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 destruc…
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HExploitability: 1.8 | Impact: 5.9
Affected Packages4 packages
▶CVEListV5linux/linuxd021c344051af91f42c5ba9fdedc176740cbd238 — c04a2c1ca25b9b23104124d3b2d349d934e302de+9
Also affects: Debian Linux 11.0