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CVE-2023-1386

3.3 · LOW

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU.

Published Jul 24, 2023CWE-281EPSS 0.24%

Overview

CVE-2023-1386 is a low-severity vulnerability. It was published on July 24, 2023 and has a CVSS 3.1 base score of 3.3 (LOW).

This vulnerability has a CVSS 3.1 base score of 3.3, rated LOW. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

A flaw was found in the 9p passthrough filesystem (9pfs) implementation in QEMU. When a local user in the guest writes an executable file with SUID or SGID, none of these privileged bits are correctly dropped. As a result, in rare circumstances, this flaw could be used by malicious users in the guest to elevate their privileges within the guest and help a host local user to elevate privileges on the host.

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

Refaccess.redhat.com/security/cve/CVE-2023-1386Refbugzilla.redhat.com/show_bug.cgi?id=2223985GitHubgithub.com/advisories/GHSA-ppj8-867g-rgjrGitHubgithub.com/v9fs/linux/issues/29Refsecurity.netapp.com/advisory/ntap-20230831-0005/Refaccess.redhat.com/security/cve/CVE-2023-1386Refbugzilla.redhat.com/show_bug.cgi?id=2223985GitHubgithub.com/advisories/GHSA-ppj8-867g-rgjrGitHubgithub.com/v9fs/linux/issues/29Refsecurity.netapp.com/advisory/ntap-20230831-0005/

How CyberStrike helps

Frequently asked questions

What is CVE-2023-1386?

CVE-2023-1386 is a low-severity vulnerability. It was published on July 24, 2023 and has a CVSS 3.1 base score of 3.3 (LOW).

How severe is CVE-2023-1386?

This vulnerability has a CVSS 3.1 base score of 3.3, 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-2023-1386?

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-2023-1386?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-1386 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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