CVE-2022-49026

e100: Fix possible use after free in e100_xmit_prepare

HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.24 % · centile 15 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: e100: Fix possible use after free in e100_xmit_prepare In e100_xmit_prepare(), if we can't map the skb, then return -ENOMEM, so e100_xmit_frame() will return NETDEV_TX_BUSY and the upper layer will resend the skb. But the skb is already freed, which will cause UAF bug when the upper layer resends the skb. Remove the harmful free.

Faiblesses (CWE)

  • CWE-416 — Utilisation après libération

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 7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)

Références européennes

Avis du CERT-FR

Configurations affectées (CPE NVD)

Produits affectés

ProduitVersions
Linux · Linuxaffected 5e5d49422dfb035ca9e280cd61d434095c151272 < b775f37d943966f6f77dca402f5a9dedce502c25 ; affected 5e5d49422dfb035ca9e280cd61d434095c151272 < 9fc27d22cdb9b1fcd754599d216a8992fed280cd ; affected 5e5d49422dfb035ca9e280cd61d434095c151272 < b46f6144ab89d3d757ead940759c505091626a7d ; affected 5e5d49422dfb035ca9e280cd61d434095c151272 < 45605c75c52c7ae7bfe902214343aabcfe5ba0ff
Linux · Linuxaffected 4.3 ; unaffected 0 < 4.3 ; unaffected 5.10.158 ≤ 5.10.* ; unaffected 5.15.82 ≤ 5.15.* ; unaffected 6.0.12 ≤ 6.0.* ; unaffected 6.1 ≤ *

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