Vulnerability Monitor

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CVE-2021-28971

In intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c in the Linux kernel through 5.11.8 on some Haswell CPUs, userspace applications (such as perf-fuzzer) can cause a system crash because the PEBS status in a PEBS record is mishandled, aka CID-d88d05a9e0b6.

Published

2021-03-22T17:15:15.137

Last Modified

2024-11-21T06:00:28.617

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.5 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:N/I:N/A:C

  • Access Vector: LOCAL
  • Access Complexity: LOW
  • Authentication: NONE
  • Confidentiality Impact: NONE
  • Integrity Impact: NONE
  • Availability Impact: COMPLETE
Exploitability Score

3.9

Impact Score

6.9

Weaknesses
  • Type: Primary
    CWE-755
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Operating System linux linux_kernel ≤ 5.11.8 Yes
Operating System fedoraproject fedora 32 Yes
Operating System fedoraproject fedora 33 Yes
Operating System fedoraproject fedora 34 Yes
Operating System debian debian_linux 9.0 Yes
Application netapp cloud_backup - Yes
Operating System netapp solidfire_baseboard_management_controller_firmware - Yes
Operating System netapp aff_a250_firmware - Yes
Hardware netapp aff_a250 - No
Operating System netapp aff_500f_firmware - Yes
Hardware netapp aff_500f - No
References