7.8

CVE-2025-38618

vsock: Do not allow binding to VMADDR_PORT_ANY

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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.9 < 5.4.297
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.241
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.190
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.148
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.102
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.42
Linux ≫ Linux Kernel Version >= 6.13 < 6.15.10
Linux ≫ Linux Kernel Version >= 6.16 < 6.16.1
Linux ≫ Linux Kernel Version6.17 Updaterc1
Debian ≫ Debian Linux Version11.0
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.047
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/f138be5d7f301fddad4e65ec66dfc3ceebf79be3
Patch
https://git.kernel.org/stable/c/44bd006d5c93f6a8f28b106cbae2428c5d0275b7
Patch
https://git.kernel.org/stable/c/32950b1907919be86a7a2697d6f93d57068b3865
Patch
https://git.kernel.org/stable/c/8f01093646b49f6330bb2d36761983fd829472b1
Patch
https://git.kernel.org/stable/c/d73960f0cf03ef1dc9e96ec7a20e538accc26d87
Patch
https://git.kernel.org/stable/c/aba0c94f61ec05315fa7815d21aefa4c87f6a9f4
Patch
https://git.kernel.org/stable/c/c04a2c1ca25b9b23104124d3b2d349d934e302de
Patch
https://git.kernel.org/stable/c/cf86704798c1b9c46fa59dfc2d662f57d1394d79
Patch
https://git.kernel.org/stable/c/d1a5b1964cef42727668ac0d8532dae4f8c19386
Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
Third Party Advisory
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
Third Party Advisory