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CVE-2021-41864

Published: Oct 1, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUCWE-190
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.4%
Top 70.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

prealloc_elems_and_freelist in kernel/bpf/stackmap.c in the Linux kernel before 5.14.12 allows unprivileged users to trigger an eBPF multiplication integer overflow with a resultant out-of-bounds write.

CVSS Vector Breakdown

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

Weaknesses

CWE-190

Affected Products

linux kernellinux
On-premOS
Operating Systems
fedorafedoraproject
On-premOS
Operating Systems / linux-distro
cloud backupnetappHardware Firmware
hci management nodenetappHardware Firmware
solidfirenetappHardware Firmware
linuxoss-projectOperating Systemsaka the linux kernel
fedoraprojectoss-projectUSOperating Systemsaka fedora project
netappcommercialUSHardware Firmware
and 19 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.12
cdn.kernel.org
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git/commit/?id=30e29a9a2bc6a4888335a6ede968b75cd329657a
git.kernel.org
https://github.com/torvalds/linux/commit/30e29a9a2bc6a4888335a6ede968b75cd329657a
github.com
and 43 more references View all →

Timeline

Published
Oct 1, 2021
Last Updated
Nov 21, 2024

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