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CVE-2025-38618 (GCVE-0-2025-38618)

Vulnerability from cvelistv5 – Published: 2025-08-22 13:01 – Updated: 2026-08-05 12:03
VLAI
Title
vsock: Do not allow binding to VMADDR_PORT_ANY
Summary
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
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-06-10 20:42 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < c04a2c1ca25b9b23104124d3b2d349d934e302de (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < d1a5b1964cef42727668ac0d8532dae4f8c19386 (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < cf86704798c1b9c46fa59dfc2d662f57d1394d79 (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < f138be5d7f301fddad4e65ec66dfc3ceebf79be3 (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 44bd006d5c93f6a8f28b106cbae2428c5d0275b7 (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 32950b1907919be86a7a2697d6f93d57068b3865 (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < 8f01093646b49f6330bb2d36761983fd829472b1 (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < d73960f0cf03ef1dc9e96ec7a20e538accc26d87 (git)
Affected: d021c344051af91f42c5ba9fdedc176740cbd238 , < aba0c94f61ec05315fa7815d21aefa4c87f6a9f4 (git)
guessed Create a notification for this product.
Linux Linux Affected: 3.9
Unaffected: 0 , < 3.9 (semver)
Unaffected: 5.4.297 , ≤ 5.4.* (semver)
Unaffected: 5.10.241 , ≤ 5.10.* (semver)
Unaffected: 5.15.190 , ≤ 5.15.* (semver)
Unaffected: 6.1.148 , ≤ 6.1.* (semver)
Unaffected: 6.6.102 , ≤ 6.6.* (semver)
Unaffected: 6.12.42 , ≤ 6.12.* (semver)
Unaffected: 6.15.10 , ≤ 6.15.* (semver)
Unaffected: 6.16.1 , ≤ 6.16.* (semver)
Unaffected: 6.17 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.