CVE-2023-52616

low-risk
Published 2024-03-18

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.

Do I need to act?

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0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (2)

Affected Vendors

Debian Linux

References (13)

Mailing List https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165
Mailing List https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6
Mailing List https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49
Mailing List https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a
Mailing List https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a
Mailing List https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598
Mailing List https://git.kernel.org/stable/c/0c3687822259a7628c85cd21a3445cbe3c367165
Mailing List https://git.kernel.org/stable/c/2bb86817b33c9d704e127f92b838035a72c315b6
Mailing List https://git.kernel.org/stable/c/7abdfd45a650c714d5ebab564bb1b988f14d9b49
Mailing List https://git.kernel.org/stable/c/7ebf812b7019fd2d4d5a7ca45ef4bf3a6f4bda0a
Mailing List https://git.kernel.org/stable/c/ba3c5574203034781ac4231acf117da917efcd2a
Mailing List https://git.kernel.org/stable/c/bb44477d4506e52785693a39f03cdc6a2c5e8598
Mailing List https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
25
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 7/34 · Low