ALSA: usb-audio: Bound MIDI endpoint descriptor scans (Linux Linux)

CVE-2026-52963
MEDIUM 5.5

En bref

Source
NVD
EPSS
EPSS 0.16 % · centile 5 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Analyzed

Description

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Bound MIDI endpoint descriptor scans snd_usbmidi_get_ms_info() validates the internal MIDIStreaming endpoint descriptor size before using baAssocJackID[], but the descriptor walker can still return a class-specific endpoint descriptor whose bLength exceeds the remaining bytes in the endpoint-extra scan. That leaves later flexible-array reads bounded by bLength, but not by the remaining bytes in the endpoint-extra scan. Stop walking when bLength is zero or extends past the remaining endpoint-extra scan.

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < e2f1260a056eb3215c13c48c5378f3e4112dc3af ; affected 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < c65b137d351e21cbc5630e73ef0eb1e1d75f5b20 ; affected 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 728ab0c72e49ca27185067984cd565425eb69b2e ; affected 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e ; affected 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < a0226560540c16717efcceaf15c862cf115b01d3 ; affected 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 09141583bd97f4bbd7358e29fd138fe798467cdb
Linux · Linuxaffected 5.7 ; unaffected 0 < 5.7 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.141 ≤ 6.6.*

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