5.4

CVE-2025-24934

SO_REUSEPORT_LB breaks connect(2) for UDP sockets

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerFreeBSD
≫
Produkt FreeBSD
Default Statusunknown
Version 15.0-BETA2
Version < p1
Status affected
Version 14.3-RELEASE
Version < p5
Status affected
Version 13.5-RELEASE
Version < p6
Status affected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.03% 0.091
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
134c704f-9b21-4f2e-91b3-4a467353bcc0 5.4 2.8 2.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CWE-488 Exposure of Data Element to Wrong Session

The product does not sufficiently enforce boundaries between the states of different sessions, causing data to be provided to, or used by, the wrong session.