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CVE-2022-48757

7.1 · HIGH

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 de…

Published Jun 20, 2024CWE-668EPSS 0.22%

Overview

CVE-2022-48757 is a high-severity vulnerability. It was published on June 20, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical 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.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888Refgit.kernel.org/stable/c/839ec7039513a4f84bfbaff953a9393471176beeRefgit.kernel.org/stable/c/8f88c78d24f6f346919007cd459fd7e51a8c7779Refgit.kernel.org/stable/c/b67ad6170c0ea87391bb253f35d1f78857736e54Refgit.kernel.org/stable/c/be1ca30331c7923c6f376610c1bd6059be9b1908Refgit.kernel.org/stable/c/c38023032a598ec6263e008d62c7f02def72d5c7Refgit.kernel.org/stable/c/db044d97460ea792110eb8b971e82569ded536c6Refgit.kernel.org/stable/c/e372ecd455b6ebc7720f52bf4b5f5d44d02f2092Refgit.kernel.org/stable/c/e43669c77cb3a742b7d84ecdc7c68c4167a7709bRefgit.kernel.org/stable/c/47934e06b65637c88a762d9c98329ae6e3238888

How CyberStrike helps

Frequently asked questions

What is CVE-2022-48757?

CVE-2022-48757 is a high-severity vulnerability. It was published on June 20, 2024 and has a CVSS 3.1 base score of 7.1 (HIGH).

How severe is CVE-2022-48757?

This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2022-48757?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2022-48757?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2022-48757 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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