CVE-2023-52616

Name: CVE-2023-52616
Creator: NVD / NIST
Published: 2024-03-18T11:15:08.967+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.23%

Last modified Jun 17, 2026

CVE-2023-52616 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. 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.. EPSS estimates a 0.23% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.23%

13.7th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	>= 5.10, < 5.10.210
Linux	Linux Kernel	>= 5.11, < 5.15.149
Linux	Linux Kernel	>= 5.16, < 6.1.79
Linux	Linux Kernel	>= 6.2, < 6.6.15
Linux	Linux Kernel	>= 6.7, < 6.7.3
Debian	Debian Linux	10.0

References

https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165Mailing List, Patch
https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6Mailing List, Patch
https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49Mailing List, Patch
https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0aMailing List, Patch
https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2aMailing List, Patch
https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598Mailing List, Patch
https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165Mailing List, Patch
https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6Mailing List, Patch
https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49Mailing List, Patch
https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0aMailing List, Patch
https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2aMailing List, Patch
https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598Mailing List, Patch
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlMailing List

Timeline

Published: Mar 18, 2024
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2023-52616?

How severe is CVE-2023-52616?

CVE-2023-52616 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.23% probability of exploitation in the next 30 days.

How do I fix CVE-2023-52616?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-52616?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST