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CVE-2021-28971

Published: Mar 22, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-755
NVD MITRE
5.5CVSSMEDIUM
EPSS Score
0.4%
Top 69.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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 Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-755

Affected Products

linux kernellinux
On-premOS
Operating Systems
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
debian linuxdebian
On-premOS
Operating Systems / linux-distro
cloud backupnetappHardware Firmware
solidfire baseboard management controller firmwarenetappHardware Firmware
linuxoss-projectOperating Systemsaka the linux kernel
fedoraprojectoss-projectUSOperating Systemsaka fedora project
debianoss-projectGBOperating Systemsaka debian gnu/linux
netappcommercialUSHardware Firmware
and 11 more affected products View all →

Exploitability

Official Patch Available

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d88d05a9e0b6d9356e97129d4ff9942d765f46ea
git.kernel.org
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
lists.debian.org
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
lists.debian.org
and 35 more references View all →

Timeline

Published
Mar 22, 2021
Last Updated
Nov 21, 2024

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