tls: handle data disappearing from under the TLS ULP (Linux Linux)

CVE-2025-38616
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.21 % · centile 11 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: tls: handle data disappearing from under the TLS ULP TLS expects that it owns the receive queue of the TCP socket. This cannot be guaranteed in case the reader of the TCP socket entered before the TLS ULP was installed, or uses some non-standard read API (eg. zerocopy ones). Replace the WARN_ON() and a buggy early exit (which leaves anchor pointing to a freed skb) with real error handling. Wipe the parsing state and tell the reader to retry. We already reload the anchor every time we (re)acquire the socket lock, so the only condition we need to avoid is an out of bounds read (not having enough bytes in the socket for previously parsed record len). If some data was read from under TLS but there's enough in the queue we'll reload and decrypt what is most likely not a valid TLS record. Leading to some undefined behavior from TLS perspective (corrupting a stream? missing an alert? missing an attack?) but no kernel crash should take place.

Faiblesses (CWE)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1HIGH 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)
CVSS 3.1HIGH 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 < ef50eaab631f9bf519ddbdfa42ccb0528adc1fc8 ; affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 < f1fe99919f629f980d0b8a7ff16950bffe06a859 ; affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 < eb0336f213fe88bbdb7d2b19c9c9ec19245a3155 ; affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 < db3658a12d5ec4db7185ae7476151a50521b7207 ; affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 < 2fb97ed9e2672b4f6e24ce206ac1a875ce4bcb38 ; affected 84c61fe1a75b4255df1e1e7c054c9e6d048da417 < 6db015fc4b5d5f63a64a193f65d98da3a7fc811d
Linux · Linuxaffected 6.0 ; unaffected 0 < 6.0 ; unaffected 6.1.185 ≤ 6.1.* ; unaffected 6.6.103 ≤ 6.6.* ; unaffected 6.12.43 ≤ 6.12.* ; unaffected 6.15.11 ≤ 6.15.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD