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.
Metrics
CVSS 3.1 7.1/10
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:HWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < 8f88c78d24f6f346919007cd459fd7e51a8c7779; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < be1ca30331c7923c6f376610c1bd6059be9b1908; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < c38023032a598ec6263e008d62c7f02def72d5c7; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < b67ad6170c0ea87391bb253f35d1f78857736e54; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < e372ecd455b6ebc7720f52bf4b5f5d44d02f2092; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < db044d97460ea792110eb8b971e82569ded536c6; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < e43669c77cb3a742b7d84ecdc7c68c4167a7709b; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < 839ec7039513a4f84bfbaff953a9393471176bee; >= 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < 47934e06b65637c88a762d9c98329ae6e3238888 |
| Linux | Linux | 2.6.26 |
References
- https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888Patch
- https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176beePatch
- https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779Patch
- https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54Patch
- https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908Patch
- https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7Patch
- https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6Patch
- https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092Patch
- https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709bPatch
- https://git.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888Patch
- https://git.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176beePatch
- https://git.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779Patch
- https://git.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54Patch
- https://git.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908Patch
- https://git.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7Patch
- https://git.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6Patch
- https://git.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092Patch
- https://git.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709bPatch
Timeline
- Published
- Jun 20, 2024
- Last modified
- Jun 17, 2026
- NVD status
- Analyzed