net/sched: act_mirred: don't override retval if we already lost the skb (Linux Linux)

CVE-2024-26739
HIGH 7.8

En bref

Source
NVD
EPSS
EPSS 0.28 % · centile 20 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
Linux
Statut NVD
Modified

Description

In the Linux kernel, the following vulnerability has been resolved: net/sched: act_mirred: don't override retval if we already lost the skb If we're redirecting the skb, and haven't called tcf_mirred_forward(), yet, we need to tell the core to drop the skb by setting the retcode to SHOT. If we have called tcf_mirred_forward(), however, the skb is out of our hands and returning SHOT will lead to UaF. Move the retval override to the error path which actually need it.

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 e5cf1baf92cb785b90390db1c624948e70c8b8bd < 0117fe0a4615a7c8d30d6ebcbf87332fbe63e6fd ; affected e5cf1baf92cb785b90390db1c624948e70c8b8bd < 9d3ef89b6a5e9f2e940de2cef3d543be0be8dec5 ; affected e5cf1baf92cb785b90390db1c624948e70c8b8bd < e873e8f7d03a2ee5b77fb1a305c782fed98e2754 ; affected e5cf1baf92cb785b90390db1c624948e70c8b8bd < 28cdbbd38a4413b8eff53399b3f872fd4e80db9d ; affected e5cf1baf92cb785b90390db1c624948e70c8b8bd < f4e294bbdca8ac8757db436fc82214f3882fc7e7 ; affected e5cf1baf92cb785b90390db1c624948e70c8b8bd < 166c2c8a6a4dc2e4ceba9e10cfe81c3e469e3210
Linux · Linuxaffected 4.19 ; unaffected 0 < 4.19 ; unaffected 5.10.238 ≤ 5.10.* ; unaffected 5.15.182 ≤ 5.15.* ; unaffected 6.1.136 ≤ 6.1.* ; unaffected 6.6.19 ≤ 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