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CVE-2023-52703

5.5 · MEDIUM

In the Linux kernel, the following vulnerability has been resolved: net/usb: kalmia: Don't pass act_len in usb_bulk_msg error path syzbot reported that act_len in kalmia_send_init_packet() is uni…

Published May 21, 2024CWE-908EPSS 0.25%

Overview

CVE-2023-52703 is a medium-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. 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/usb: kalmia: Don't pass act_len in usb_bulk_msg error path

syzbot reported that act_len in kalmia_send_init_packet() is

uninitialized when passing it to the first usb_bulk_msg error path. Jiri

Pirko noted that it's pointless to pass it in the error path, and that

the value that would be printed in the second error path would be the

value of act_len from the first call to usb_bulk_msg.[1]

With this in mind, let's just not pass act_len to the usb_bulk_msg error

paths.

1: https://lore.kernel.org/lkml/Y9pY61y1nwTuzMOa@nanopsycho/

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/02df3170c04a8356cd571ab9155a42f030190abcRefgit.kernel.org/stable/c/1b5de7d44890b78519acbcc80d8d1f23ff2872e5Refgit.kernel.org/stable/c/338f826d3afead6e4df521f7972a4bef04a72efbRefgit.kernel.org/stable/c/525bdcb0838d19d918c7786151ee14661967a030Refgit.kernel.org/stable/c/723ef7b66f37c0841f5a451ccbce47ee1641e081Refgit.kernel.org/stable/c/a753352622b4f3c0219e0e9c73114b2848ae6042Refgit.kernel.org/stable/c/c68f345b7c425b38656e1791a0486769a8797016Refgit.kernel.org/stable/c/02df3170c04a8356cd571ab9155a42f030190abcRefgit.kernel.org/stable/c/1b5de7d44890b78519acbcc80d8d1f23ff2872e5Refgit.kernel.org/stable/c/338f826d3afead6e4df521f7972a4bef04a72efb

How CyberStrike helps

Frequently asked questions

What is CVE-2023-52703?

CVE-2023-52703 is a medium-severity vulnerability. It was published on May 21, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2023-52703?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-52703?

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-2023-52703?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-52703 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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