netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits (Linux Linux)

CVE-2023-53033
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.20 % · centile 10 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_payload: incorrect arithmetics when fetching VLAN header bits If the offset + length goes over the ethernet + vlan header, then the length is adjusted to copy the bytes that are within the boundaries of the vlan_ethhdr scratchpad area. The remaining bytes beyond ethernet + vlan header are copied directly from the skbuff data area. Fix incorrect arithmetic operator: subtract, not add, the size of the vlan header in case of double-tagged packets to adjust the length accordingly to address CVE-2023-0179.

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 3.1MEDIUM 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 f6ae9f120dada00abfb47313364c35118469455f < 550efeff989b041f3746118c0ddd863c39ddc1aa ; affected f6ae9f120dada00abfb47313364c35118469455f < a8acfe2c6fb99f9375a9325807a179cd8c32e6e3 ; affected f6ae9f120dada00abfb47313364c35118469455f < 76ef74d4a379faa451003621a84e3498044e7aa3 ; affected f6ae9f120dada00abfb47313364c35118469455f < 696e1a48b1a1b01edad542a1ef293665864a4dd0
Linux · Linuxaffected 5.5 ; unaffected 0 < 5.5 ; unaffected 5.10.164 ≤ 5.10.* ; unaffected 5.15.89 ≤ 5.15.* ; unaffected 6.1.7 ≤ 6.1.* ; unaffected 6.2 ≤ *

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