CVE-2023-52616

crypto: lib/mpi - Fix unexpected pointer access in mpi_ec_init

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.

5.5

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.01%

Affected: Linux Linux

References

Link	Tags
https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165	patch mailing list
https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6	patch mailing list
https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598	patch mailing list
https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a	patch mailing list
https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49	patch mailing list
https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a	patch mailing list
https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html	mailing list

Frequently Asked Questions

What is the severity of CVE-2023-52616?: CVE-2023-52616 has been scored as a medium severity vulnerability.
How to fix CVE-2023-52616?: To fix CVE-2023-52616, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-52616 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-52616 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-52616?: CVE-2023-52616 affects Linux Linux, Linux Linux.

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