CVE-2023-52764

HIGH
Published May 21, 2024 Modified Sep 23, 2025 CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: media: gspca: cpia1: shift-out-of-bounds in set_flicker Syzkaller reported the following issue: UBSAN: shift-out-of-bounds in drivers/media/usb/gspca/cpia1.c:1031:27 shift exponent 245 is too large for 32-bit type 'int' When the value of the variable "sd->params.exposure.gain" exceeds the number of bits in an integer, a shift-out-of-bounds error is reported. It is triggered because the variable "currentexp" cannot be left-shifted by more than the number of bits in an integer. In order to avoid invalid range during left-shift, the conditional expression is added.

Is your site exposed to CVE-2023-52764?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

7.8
HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-787 Out-of-bounds Write

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

References

Advisories & Patches

https://git.kernel.org/stable/c/099be1822d1f095433f4b08af9cc9d6308ec1953 https://git.kernel.org/stable/c/09cd8b561aa9796903710a1046957f2b112c8f26 https://git.kernel.org/stable/c/2eee8edfff90e22980a6b22079d238c3c9d323bb https://git.kernel.org/stable/c/69bba62600bd91d6b7c1e8ca181faf8ac64f7060 https://git.kernel.org/stable/c/8f83c85ee88225319c52680792320c02158c2a9b https://git.kernel.org/stable/c/93bddd6529f187f510eec759f37d0569243c9809 https://git.kernel.org/stable/c/a647f27a7426d2fe1b40da7c8fa2b81354a51177 https://git.kernel.org/stable/c/c6b6b8692218da73b33b310d7c1df90f115bdd9a https://git.kernel.org/stable/c/e2d7149b913d14352c82624e723ce1c211ca06d3 https://git.kernel.org/stable/c/099be1822d1f095433f4b08af9cc9d6308ec1953 https://git.kernel.org/stable/c/09cd8b561aa9796903710a1046957f2b112c8f26 https://git.kernel.org/stable/c/2eee8edfff90e22980a6b22079d238c3c9d323bb https://git.kernel.org/stable/c/69bba62600bd91d6b7c1e8ca181faf8ac64f7060 https://git.kernel.org/stable/c/8f83c85ee88225319c52680792320c02158c2a9b https://git.kernel.org/stable/c/93bddd6529f187f510eec759f37d0569243c9809 https://git.kernel.org/stable/c/a647f27a7426d2fe1b40da7c8fa2b81354a51177 https://git.kernel.org/stable/c/c6b6b8692218da73b33b310d7c1df90f115bdd9a https://git.kernel.org/stable/c/e2d7149b913d14352c82624e723ce1c211ca06d3

Frequently Asked Questions

What is CVE-2023-52764? +
In the Linux kernel, the following vulnerability has been resolved: media: gspca: cpia1: shift-out-of-bounds in set_flicker Syzkaller reported the following issue: UBSAN: shift-out-of-bounds in drivers/media/usb/gspca/cpia1.c:1031:27 shift exponent 245 is too large for 32-bit type 'int' When the value of the variable "sd->params.exposure.gain" exceeds the number of bits in an integer, a shift-out-of-bounds error is reported. It is triggered because the variable "currentexp" cannot be left-shifted by more than the number of bits in an integer. In order to avoid invalid range during left-shift, the conditional expression is added. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2023-52764? +
CVE-2023-52764 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2023-52764? +
CVE-2023-52764 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-2023-52764? +
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.

Related Vulnerabilities

CVE-2026-8358

LibreOffice Calc can import tracked changes from a spreadsheet document. A heap buffer overflow existed when a document reused the …
CVE-2026-8356

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. …
CVE-2026-6040

A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the …
CVE-2026-6039

LibreOffice can import drawings in the DXF format used by CAD software. A heap buffer overflow existed when importing a …
CVE-2026-3298

The method "sock_recvfrom_into()" of "asyncio.ProacterEventLoop" (Windows only) was missing a boundary check for the data buffer when using nbytes parameter. …
CVE-2026-40489

editorconfig-core-c is an EditorConfig core library for use by plugins supporting EditorConfig parsing. Versions up to and including 0.12.10 have …

Don't wait for an exploit

Scan your website for vulnerabilities like CVE-2023-52764 — free, no signup required.