CVE-2024-0443
Kernel: blkio memory leakage due to blkcg and some blkgs are not freed after they are made offline.
MEDIUM 5.5
En bref
- Source
- NVD
- EPSS
- EPSS 0.25 % · centile 16 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- redhat
- Statut NVD
- Modified
Description
A flaw was found in the blkgs destruction path in block/blk-cgroup.c in the Linux kernel, leading to a cgroup blkio memory leakage problem. When a cgroup is being destroyed, cgroup_rstat_flush() is only called at css_release_work_fn(), which is called when the blkcg reference count reaches 0. This circular dependency will prevent blkcg and some blkgs from being freed after they are made offline. This issue may allow an attacker with a local access to cause system instability, such as an out of memory error.
Faiblesses (CWE)
- CWE-402 — Transmission de ressources privées vers une nouvelle sphère
- CWE-668 — Exposition d'une ressource à la mauvaise sphère
Références
- https://access.redhat.com/errata/RHSA-2023:6583
- https://access.redhat.com/errata/RHSA-2023:7077
- https://access.redhat.com/errata/RHSA-2023:7370
- https://access.redhat.com/security/cve/CVE-2024-0443
- https://bugzilla.redhat.com/show_bug.cgi?id=2257968
- https://lore.kernel.org/linux-block/20221215033132.230023-3-longman@redhat.com/
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | redhat |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · secalert@redhat.com (Secondary) |
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
Références européennes
- ENISA EUVD · EUVD-2024-16238
- GCVE · GCVE-0-2024-0443
Avis du CERT-FR
- CERTFR-2024-AVI-0240 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.4cpe:2.3:o:linux:linux_kernel:6.4:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.4:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.4:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.4:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.4:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.4:rc6:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*cpe:2.3:o:fedoraproject:fedora:39:*:*:*:*:*:*:*
Produits affectés
| Produit | Versions |
|---|---|
| kernel | affected 0 < 6.4-rc7 |
| Red Hat · Red Hat Enterprise Linux 8 | unaffected 0:4.18.0-513.5.1.el8_9 < * |
| Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Support | unaffected 0:5.14.0-284.40.1.el9_2 < * |
| Red Hat · Red Hat Enterprise Linux 6 | |
| Red Hat · Red Hat Enterprise Linux 7 | |
| Red Hat · Red Hat Enterprise Linux 7 | |
| Red Hat · Red Hat Enterprise Linux 8 | |
| Red Hat · Red Hat Enterprise Linux 9 | |
| Red Hat · Red Hat Enterprise Linux 9 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |