CVE-2022-48757

Severity CVSS v4.0:

Pending analysis

Type:

Unavailable / Other

Publication date:

20/06/2024

Last modified:

17/09/2025

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 7.10 HIGH
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): None
Availability (A): High

Base Score 3.x

7.10

Severity 3.x

HIGH

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::	2.6.26 (including)	4.4.302 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.5 (including)	4.9.300 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.10 (including)	4.14.265 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.15 (including)	4.19.228 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (including)	5.4.176 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.96 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (including)	5.15.19 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	5.16.5 (excluding)
cpe:2.3:o:linux:linux_kernel:5.17:rc1::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2022-48757

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools