cpumap: Zero-initialise xdp_rxq_info struct before running XDP program (Linux Linux)

CVE-2024-27431
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.23 % · centile 14 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: cpumap: Zero-initialise xdp_rxq_info struct before running XDP program When running an XDP program that is attached to a cpumap entry, we don't initialise the xdp_rxq_info data structure being used in the xdp_buff that backs the XDP program invocation. Tobias noticed that this leads to random values being returned as the xdp_md->rx_queue_index value for XDP programs running in a cpumap. This means we're basically returning the contents of the uninitialised memory, which is bad. Fix this by zero-initialising the rxq data structure before running the XDP program.

Faiblesses (CWE)

  • CWE-908 — Utilisation d'une ressource non initialisée

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 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HCISA-ADP
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 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · nvd@nist.gov (Primary)
CVSS 3.1MEDIUM 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HNVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 9216477449f33cdbc9c9a99d49f500b7fbb81702 < 5f4e51abfbe6eb444fa91906a5cd083044278297 ; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 < f0363af9619c77730764f10360e36c6445c12f7b ; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 < 3420b3ff1ff489c177ea1cb7bd9fbbc4e9a0be95 ; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 < f562e4c4aab00986dde3093c4be919c3f2b85a4a ; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 < eaa7cb836659ced2d9f814ac32aa3ec193803ed6 ; affected 9216477449f33cdbc9c9a99d49f500b7fbb81702 < 2487007aa3b9fafbd2cb14068f49791ce1d7ede5
Linux · Linuxaffected 5.9 ; unaffected 0 < 5.9 ; unaffected 5.10.213 ≤ 5.10.* ; unaffected 5.15.152 ≤ 5.15.* ; unaffected 6.1.82 ≤ 6.1.* ; unaffected 6.6.22 ≤ 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