CVE-2021-38200

Description

arch/powerpc/perf/core-book3s.c in the Linux kernel before 5.12.13, on systems with perf_event_paranoid=-1 and no specific PMU driver support registered, allows local users to cause a denial of service (perf_instruction_pointer NULL pointer dereference and OOPS) via a "perf record" command.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.04%
Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/torvalds/linux/commit/60b7ed54a41b550d50caf7f2418db4a7e75b5bdc third party advisory patch
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13 mailing list patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-38200?
CVE-2021-38200 has been scored as a medium severity vulnerability.
How to fix CVE-2021-38200?
To fix CVE-2021-38200, 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-2021-38200 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-38200 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.
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