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CVE-2023-52746

2.5 · LOW

In the Linux kernel, the following vulnerability has been resolved: xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr() int type = nla_type(nla); if (type > XFRMA_MAX) {…

Published May 21, 2024CWE-401EPSS 0.24%

Overview

CVE-2023-52746 is a low-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 2.5 (LOW).

This vulnerability has a CVSS 3.1 base score of 2.5, rated LOW. 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:

xfrm/compat: prevent potential spectre v1 gadget in xfrm_xlate32_attr()

int type = nla_type(nla);

if (type > XFRMA_MAX) {

return -EOPNOTSUPP;

}

@type is then used as an array index and can be used

as a Spectre v1 gadget.

if (nla_len(nla) < compat_policy[type].len) {

array_index_nospec() can be used to prevent leaking

content of kernel memory to malicious users.

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/419674224390fca298020fc0751a20812f84b12dRefgit.kernel.org/stable/c/5dc688fae6b7be9dbbf5304a3d2520d038e06db5Refgit.kernel.org/stable/c/a893cc644812728e86e9aff517fd5698812ecef0Refgit.kernel.org/stable/c/b6ee896385380aa621102e8ea402ba12db1cabffRefgit.kernel.org/stable/c/419674224390fca298020fc0751a20812f84b12dRefgit.kernel.org/stable/c/5dc688fae6b7be9dbbf5304a3d2520d038e06db5Refgit.kernel.org/stable/c/a893cc644812728e86e9aff517fd5698812ecef0Refgit.kernel.org/stable/c/b6ee896385380aa621102e8ea402ba12db1cabff

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52746?

CVE-2023-52746 is a low-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 2.5 (LOW).

How severe is CVE-2023-52746?

This vulnerability has a CVSS 3.1 base score of 2.5, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52746?

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-2023-52746?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52746 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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