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CVE-2021-42252

Published: Oct 11, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDUNVD-CWE-noinfo
NVD MITRE
7.8CVSSHIGH
EPSS Score
0.4%
Top 72.5%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

An issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6. Local attackers able to access the Aspeed LPC control interface could overwrite memory in the kernel and potentially execute privileges, aka CID-b49a0e69a7b1. This occurs because a certain comparison uses values that are not memory sizes.

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

NVD-CWE-noinfo

Affected Products

linux kernellinux
On-premOS
Operating Systems
h300s firmwarenetappHardware Firmware
h500s firmwarenetappHardware Firmware
h700s firmwarenetappHardware Firmware
h300e firmwarenetappHardware Firmware
linuxoss-projectOperating Systemsaka the linux kernel
netappcommercialUSHardware Firmware
and 10 more affected products View all →

Exploitability

Official Patch Available

References

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6
cdn.kernel.org
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96
git.kernel.org
https://security.netapp.com/advisory/ntap-20211112-0006/
security.netapp.com
and 23 more references View all →

Timeline

Published
Oct 11, 2021
Last Updated
Nov 21, 2024

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