net: fix information leakage in /proc/net/ptype (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 13 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: net: fix information leakage in /proc/net/ptype In one net namespace, after creating a packet socket without binding it to a device, users in other net namespaces can observe the new `packet_type` added by this packet socket by reading `/proc/net/ptype` file. This is minor information leakage as packet socket is namespace aware. Add a net pointer in `packet_type` to keep the net namespace of of corresponding packet socket. In `ptype_seq_show`, this net pointer must be checked when it is not NULL.
Weaknesses (CWE)
- CWE-668 — Exposure of Resource to Wrong Sphere
References
- https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779
- https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908
- https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7
- https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54
- https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092
- https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6
- https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709b
- https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176bee
- https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| 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-2022-53636
- GCVE · GCVE-0-2022-48757
CERT-FR advisories
- CERTFR-2026-AVI-1165 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1057 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0072 — Multiples vulnérabilités dans Juniper Secure Analytics · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0958 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0668 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.26 < 4.4.302cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.5 < 4.9.300cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 4.14.265cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.228cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.176cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.96cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.19cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.5cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 < 8f88c78d24f6f346919007cd459fd7e51a8c7779 ; affected 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 < be1ca30331c7923c6f376610c1bd6059be9b1908 ; affected 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 < c38023032a598ec6263e008d62c7f02def72d5c7 ; affected 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 < b67ad6170c0ea87391bb253f35d1f78857736e54 ; affected 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 < e372ecd455b6ebc7720f52bf4b5f5d44d02f2092 ; affected 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50 < db044d97460ea792110eb8b971e82569ded536c6 |
| Linux · Linux | affected 2.6.26 ; unaffected 0 < 2.6.26 ; unaffected 4.4.302 ≤ 4.4.* ; unaffected 4.9.300 ≤ 4.9.* ; unaffected 4.14.265 ≤ 4.14.* ; unaffected 4.19.228 ≤ 4.19.* |
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 |