CVE-2021-42252
First published: Mon Oct 11 2021(Updated: )
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.
Credit: cve@mitre.org cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | <5.14.6 | |
| All of | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| All of | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700S | ||
| NetApp H700S | ||
| All of | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| All of | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| All of | ||
| NetApp H700E | ||
| NetApp H700E | ||
| All of | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| All of | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| All of | ||
| NetApp SolidFire Baseboard Management Controller Firmware | ||
| NetApp SolidFire | ||
| NetApp H300S Firmware | ||
| NetApp H300S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700S | ||
| NetApp H700S | ||
| NetApp H300E | ||
| NetApp H300E Firmware | ||
| NetApp H500S Firmware | ||
| NetApp H500e Firmware | ||
| NetApp H700E | ||
| NetApp H700E | ||
| NetApp H410S | ||
| NetApp H410S Firmware | ||
| NetApp H410C | ||
| NetApp H410C Firmware | ||
| NetApp SolidFire Baseboard Management Controller Firmware | ||
| NetApp SolidFire | ||
| debian/linux | 5.10.223-1 5.10.234-1 6.1.129-1 6.1.128-1 6.12.20-1 6.12.21-1 |
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Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96
- https://security.netapp.com/advisory/ntap-20211112-0006/
- https://launchpad.net/bugs/cve/CVE-2021-42252
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42252
- https://nvd.nist.gov/vuln/detail/CVE-2021-42252
- https://security-tracker.debian.org/tracker/CVE-2021-42252
- https://ubuntu.com/security/CVE-2021-42252
- https://git.kernel.org/linus/b49a0e69a7b1a68c8d3f64097d06dabb770fec96
Frequently Asked Questions
What is the severity of CVE-2021-42252?
CVE-2021-42252 has a high severity due to its potential to allow local attackers to execute arbitrary code in the kernel.
How do I fix CVE-2021-42252?
To resolve CVE-2021-42252, update the Linux kernel to version 5.14.6 or later.
Who is affected by CVE-2021-42252?
CVE-2021-42252 affects local users with access to the Aspeed LPC control interface in vulnerable Linux kernels.
What allows exploitation of CVE-2021-42252?
Exploitation of CVE-2021-42252 is possible because local attackers can overwrite kernel memory through the Aspeed LPC control interface.
What Linux kernel versions are vulnerable to CVE-2021-42252?
Linux kernel versions prior to 5.14.6 are vulnerable to CVE-2021-42252.
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- canonical/netapp h300s firmware
- canonical/netapp h500e firmware
- canonical/netapp h700s
- canonical/netapp h300e
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- canonical/netapp h500s firmware
- canonical/netapp h700e
- canonical/netapp h410s
- canonical/netapp h410s firmware
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- canonical/netapp h410c firmware
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- canonical/netapp solidfire
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