CVE-2024-36883
net: fix out-of-bounds access in ops_init
HIGH 7.8
At a glance
- Source
- NVD
- EPSS
- EPSS 0.31 % · percentile 24 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: net: fix out-of-bounds access in ops_init net_alloc_generic is called by net_alloc, which is called without any locking. It reads max_gen_ptrs, which is changed under pernet_ops_rwsem. It is read twice, first to allocate an array, then to set s.len, which is later used to limit the bounds of the array access. It is possible that the array is allocated and another thread is registering a new pernet ops, increments max_gen_ptrs, which is then used to set s.len with a larger than allocated length for the variable array. Fix it by reading max_gen_ptrs only once in net_alloc_generic. If max_gen_ptrs is later incremented, it will be caught in net_assign_generic.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
- https://git.kernel.org/stable/c/3cdc34d76c4f777579e28ad373979d36c030cfd3
- https://git.kernel.org/stable/c/7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41f
- https://git.kernel.org/stable/c/0c3248bc708a7797be573214065cf908ff1f54c7
- https://git.kernel.org/stable/c/9518b79bfd2fbf99fa9b7e8e36bcb1825e7ba030
- https://git.kernel.org/stable/c/2d60ff5874aefd006717ca5e22ac1e25eac29c42
- https://git.kernel.org/stable/c/b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cd
- https://git.kernel.org/stable/c/f4f94587e1bf87cb40ec33955a9d90148dd026ab
- https://git.kernel.org/stable/c/a26ff37e624d12e28077e5b24d2b264f62764ad6
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html
- https://security.netapp.com/advisory/ntap-20241018-0001/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-36235
- GCVE · GCVE-0-2024-36883
CERT-FR advisories
- CERTFR-2026-AVI-1165 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0088 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0021 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0018 — Multiples vulnérabilités dans les produits Juniper Networks · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1102 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0821 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0799 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0777 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0716 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0694 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0667 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0527 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0472 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.0.19 < 3.1cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.2.3 < 3.3cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 3.3.1 < 4.19.314cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.276cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.217cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.159cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.91cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.31cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.8.10cpe:2.3:o:linux:linux_kernel:3.3:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.3:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.3:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.3:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.3:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.3:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:3.3:rc7:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.9:rc7:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 3cdc34d76c4f777579e28ad373979d36c030cfd3 ; affected 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 7b0e64583eab8c1d896b47e5dd0bf2e7d86ec41f ; affected 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 0c3248bc708a7797be573214065cf908ff1f54c7 ; affected 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 9518b79bfd2fbf99fa9b7e8e36bcb1825e7ba030 ; affected 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < 2d60ff5874aefd006717ca5e22ac1e25eac29c42 ; affected 073862ba5d249c20bd5c49fc6d904ff0e1f6a672 < b6dbfd5bcc267a95a0bf1bf96af46243f96ec6cd |
| Linux · Linux | affected 3.3 ; unaffected 0 < 3.3 ; unaffected 4.19.314 ≤ 4.19.* ; unaffected 5.4.276 ≤ 5.4.* ; unaffected 5.10.217 ≤ 5.10.* ; unaffected 5.15.159 ≤ 5.15.* |
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 |