CVE-2021-38200 Information

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.

CVSS Vector

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

Reference

https://github.com/torvalds/linux/commit/60b7ed54a41b550d50caf7f2418db4a7e75b5bdc https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.12.13

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.5