CVE-2021-28971

Aliases:UBUNTU-CVE-2021-28971DEBIAN-CVE-2021-28971
Advisory lineage Upstream: 0 Downstream: 30
Modified
Published: 22 Mar 2021, 16:53
Last modified:03 Aug 2024, 21:55

Vulnerability Summary

Overall Risk (default)
low
22/100
CVSS Score
5.5 MEDIUM
v3.1 (nvd)
EPSS Score
0.39% LOW
0% probability +0.35%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

22 Mar 2021, 16:53
Published
Vulnerability first disclosed
03 Aug 2024, 21:55
Last Modified
Vulnerability information updated

Description

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
  • v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C

EPSS Trends

Current EPSS score: 0.39%• Percentile: 32%

Techniques & Countermeasures

  • CWE-755•Improper Handling of Exceptional Conditions

    The product does not handle or incorrectly handles an exceptional condition.

Affected Systems

  • debian•linux

    < 5.10.26-1 | < 5.10.26-1 | < 5.10.26-1 | < 5.10.26-1

  • ubuntu•linux

    < 4.15.0-144.148 | < 5.4.0-74.83

  • ubuntu•linux-aws

    < 4.15.0-1103.110 | < 5.4.0-1049.51

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    all

  • ubuntu•linux-aws-5.4

    < 5.4.0-1049.51~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2045.47 | all | < 5.4.0-1069.73+fips2

  • ubuntu•linux-aws-hwe

    < 4.15.0-1103.110~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1115.128~14.04.1 | < 4.15.0-1115.128~16.04.1 | all | < 5.4.0-1048.50

  • ubuntu•linux-azure-4.15

    < 4.15.0-1115.128

  • ubuntu•linux-azure-5.3

    all

  • ubuntu•linux-azure-5.4

    < 5.4.0-1048.50~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2027.30 | all | < 5.4.0-1073.76+fips1

  • ubuntu•linux-bluefield

    all | < 5.4.0-1012.15

  • ubuntu•linux-dell300x

    < 4.15.0-1022.26

  • ubuntu•linux-fips

    < 4.15.0-1060.68 | all

  • ubuntu•linux-gcp

    < 4.15.0-1100.113~16.04.1 | all | < 5.4.0-1044.47

  • ubuntu•linux-gcp-4.15

    < 4.15.0-1100.113

  • ubuntu•linux-gcp-5.3

    all

  • ubuntu•linux-gcp-5.4

    < 5.4.0-1044.47~18.04.2

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all | < 5.4.0-1067.71~20.04.1

  • ubuntu•linux-gke

    < 5.4.0-1044.46

  • ubuntu•linux-gke-4.15

    all

  • ubuntu•linux-gke-5.4

    < 5.4.0-1044.46~18.04.1

  • ubuntu•linux-gkeop

    < 5.4.0-1016.17

  • ubuntu•linux-gkeop-5.4

    < 5.4.0-1016.17~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-144.148~16.04.1 | all

  • ubuntu•linux-hwe-5.4

    < 5.4.0-74.83~18.04.1

  • ubuntu•linux-hwe-5.8

    < 5.8.0-55.62~20.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.15.0-1092.94 | < 5.4.0-1040.41

  • ubuntu•linux-oem

    all

  • ubuntu•linux-oem-5.10

    < 5.10.0-1025.26

  • ubuntu•linux-oem-5.6

    all

  • ubuntu•linux-oracle

    < 4.15.0-1072.80~16.04.1 | < 4.15.0-1072.80 | < 5.4.0-1046.50

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    all

  • ubuntu•linux-oracle-5.4

    < 5.4.0-1046.50~18.04.2

  • ubuntu•linux-raspi

    < 5.4.0-1036.39

  • ubuntu•linux-raspi-5.4

    < 5.4.0-1036.39~18.04.1

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.15.0-1086.91 | all

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-riscv-5.8

    < 5.8.0-26.28~20.04.1

  • ubuntu•linux-snapdragon

    < 4.15.0-1103.112

  • debian•debian_linux

    9.0

Showing first 50 affected entries in server-rendered view.

References (15)