CVE-2023-52669

HIGH
Published May 17, 2024 Modified Dec 23, 2025 CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: s390/aes - Fix buffer overread in CTR mode When processing the last block, the s390 ctr code will always read a whole block, even if there isn't a whole block of data left. Fix this by using the actual length left and copy it into a buffer first for processing.

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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
debian debian_linux

References

Advisories & Patches

https://git.kernel.org/stable/c/a7f580cdb42ec3d53bbb7c4e4335a98423703285 https://git.kernel.org/stable/c/cd51e26a3b89706beec64f2d8296cfb1c34e0c79 https://git.kernel.org/stable/c/d07f951903fa9922c375b8ab1ce81b18a0034e3b https://git.kernel.org/stable/c/d68ac38895e84446848b7647ab9458d54cacba3e https://git.kernel.org/stable/c/dbc9a791a70ea47be9f2acf251700fe254a2ab23 https://git.kernel.org/stable/c/e78f1a43e72daf77705ad5b9946de66fc708b874 https://git.kernel.org/stable/c/a7f580cdb42ec3d53bbb7c4e4335a98423703285 https://git.kernel.org/stable/c/cd51e26a3b89706beec64f2d8296cfb1c34e0c79 https://git.kernel.org/stable/c/d07f951903fa9922c375b8ab1ce81b18a0034e3b https://git.kernel.org/stable/c/d68ac38895e84446848b7647ab9458d54cacba3e https://git.kernel.org/stable/c/dbc9a791a70ea47be9f2acf251700fe254a2ab23 https://git.kernel.org/stable/c/e78f1a43e72daf77705ad5b9946de66fc708b874

Frequently Asked Questions

What is CVE-2023-52669? +
In the Linux kernel, the following vulnerability has been resolved: crypto: s390/aes - Fix buffer overread in CTR mode When processing the last block, the s390 ctr code will always read a whole block, even if there isn't a whole block of data left. Fix this by using the actual length left and copy it into a buffer first for processing. It has a CVSS v3.1 base score of 7.8 (HIGH).
How severe is CVE-2023-52669? +
CVE-2023-52669 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-2023-52669? +
CVE-2023-52669 affects products from debian, linux, specifically: debian_linux, linux_kernel. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2023-52669? +
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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