CVE-2023-52616

MEDIUM
Published Mar 18, 2024 Modified Mar 10, 2025

Description

In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately.

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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

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/0c3687822259a7628c85cd21a3445cbe3c367165 https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6 https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49 https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598 https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165 https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6 https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49 https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598

Frequently Asked Questions

What is CVE-2023-52616? +
In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init When the mpi_ec_ctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this issue was ignored because memory for mpi_ec_ctx is allocated with the __GFP_ZERO flag. For example, this error will be triggered when calculating the Za value for SM2 separately. It has a CVSS v3.1 base score of 5.5 (MEDIUM).
How severe is CVE-2023-52616? +
CVE-2023-52616 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-2023-52616? +
CVE-2023-52616 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-2023-52616? +
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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