CVE-2022-48757

Advisory lineage Upstream: 0 Downstream: 5
Analyzed
Published: 20 Jun 2024, 11:13
Last modified:11 May 2026, 18:46

Vulnerability Summary

Overall Risk (default)
medium
28/100
CVSS Score
7.1 HIGH
v3.1 (nvd)
EPSS Score
0.01% LOW
0% probability 0.00%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 Jun 2024, 11:13
Published
Vulnerability first disclosed
11 May 2026, 18:46
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•HIGH•Score: 7.1CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

EPSS Trends

Current EPSS score: 0.01%• Percentile: 2%

Techniques & Countermeasures

  • CWE-668•Exposure of Resource to Wrong Sphere

    The product exposes a resource to the wrong control sphere, providing unintended actors with inappropriate access to the resource.

Affected Systems

  • linux•linux

    ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < 8f88c78d24f6f346919007cd459fd7e51a8c7779 | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < be1ca30331c7923c6f376610c1bd6059be9b1908 | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < c38023032a598ec6263e008d62c7f02def72d5c7 | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < b67ad6170c0ea87391bb253f35d1f78857736e54 | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < e372ecd455b6ebc7720f52bf4b5f5d44d02f2092 | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < db044d97460ea792110eb8b971e82569ded536c6 | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < e43669c77cb3a742b7d84ecdc7c68c4167a7709b | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < 839ec7039513a4f84bfbaff953a9393471176bee | ≥ 2feb27dbe00cbb4f7d31f90acf6bd0d751dd0a50, < 47934e06b65637c88a762d9c98329ae6e3238888 | 2.6.26

  • linux•linux_kernel

    ≥ 2.6.26, < 4.4.302 | ≥ 4.5, < 4.9.300 | ≥ 4.10, < 4.14.265 | ≥ 4.15, < 4.19.228 | ≥ 4.20, < 5.4.176 | ≥ 5.5, < 5.10.96 | ≥ 5.11, < 5.15.19 | ≥ 5.16, < 5.16.5 | 5.17:rc1

References (9)