CVE-2025-24934 (GCVE-0-2025-24934)

Vulnerability from cvelistv5 – Published: 2025-10-22 17:43 – Updated: 2025-10-22 20:01
VLAI?
Summary
Software which sets SO_REUSEPORT_LB on a socket and then connects it to a host will not directly observe any problems. However, due to its membership in a load-balancing group, that socket will receive packets originating from any host. This breaks the contract of the connect(2) and implied connect via sendto(2), and may leave the application vulnerable to spoofing attacks. The kernel failed to check the connection state of sockets when adding them to load-balancing groups. Furthermore, when looking up the destination socket for an incoming packet, the kernel will match a socket belonging to a load-balancing group even if it is connected, in violation of the contract that connected sockets are only supposed to receive packets originating from the connected host.
Severity ?
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE
  • CWE-488 - Exposure of Data Element to Wrong Session
Assigner
References
Impacted products
Vendor Product Version
FreeBSD FreeBSD Affected: 15.0-BETA2 , < p1 (beta)
Affected: 14.3-RELEASE , < p5 (release)
Affected: 13.5-RELEASE , < p6 (release)
Create a notification for this product.
Credits
MSc. student Omer Ben Simhon from the Hebrew University School of Computer Science and Engineering Prof. Amit Klein from the Hebrew University School of Computer Science and Engineering
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Sightings

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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.