CVE-2023-52703

MEDIUM
Published May 21, 2024 Modified Sep 23, 2025 CWE-908

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/

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CVSS v3.1 Score

5.5
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-908 CWE-908

Affected Products

Vendor Product
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel
linux linux_kernel

References

Advisories & Patches

https://git.kernel.org/stable/c/02df3170c04a8356cd571ab9155a42f030190abc https://git.kernel.org/stable/c/1b5de7d44890b78519acbcc80d8d1f23ff2872e5 https://git.kernel.org/stable/c/338f826d3afead6e4df521f7972a4bef04a72efb https://git.kernel.org/stable/c/525bdcb0838d19d918c7786151ee14661967a030 https://git.kernel.org/stable/c/723ef7b66f37c0841f5a451ccbce47ee1641e081 https://git.kernel.org/stable/c/a753352622b4f3c0219e0e9c73114b2848ae6042 https://git.kernel.org/stable/c/c68f345b7c425b38656e1791a0486769a8797016 https://git.kernel.org/stable/c/02df3170c04a8356cd571ab9155a42f030190abc https://git.kernel.org/stable/c/1b5de7d44890b78519acbcc80d8d1f23ff2872e5 https://git.kernel.org/stable/c/338f826d3afead6e4df521f7972a4bef04a72efb https://git.kernel.org/stable/c/525bdcb0838d19d918c7786151ee14661967a030 https://git.kernel.org/stable/c/723ef7b66f37c0841f5a451ccbce47ee1641e081 https://git.kernel.org/stable/c/a753352622b4f3c0219e0e9c73114b2848ae6042 https://git.kernel.org/stable/c/c68f345b7c425b38656e1791a0486769a8797016

Frequently Asked Questions

What is CVE-2023-52703? +
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/ It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2023-52703? +
CVE-2023-52703 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.
What products are affected by CVE-2023-52703? +
CVE-2023-52703 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-52703? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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