Vulnerability 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 Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 5.14.6 |
| Netapp | H300S Firmware | - |
| Netapp | H300S | - |
| Netapp | H500S Firmware | - |
| Netapp | H500S | - |
| Netapp | H700S Firmware | - |
| Netapp | H700S | - |
| Netapp | H300E Firmware | - |
| Netapp | H300E | - |
| Netapp | H500E Firmware | - |
| Netapp | H500E | - |
| Netapp | H700E Firmware | - |
| Netapp | H700E | - |
| Netapp | H410S Firmware | - |
| Netapp | H410S | - |
| Netapp | H410C Firmware | - |
| Netapp | H410C | - |
| Netapp | Solidfire Baseboard Management Controller Firmware | - |
| Netapp | Solidfire Baseboard Management Controller | - |
References
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6Release NotesVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20211112-0006/Third Party Advisory
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6Release NotesVendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b4PatchVendor Advisory
- https://security.netapp.com/advisory/ntap-20211112-0006/Third Party Advisory
FAQ
What is CVE-2021-42252?
CVE-2021-42252 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 overwri...
How severe is CVE-2021-42252?
CVE-2021-42252 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-42252?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel, Netapp H300S Firmware, Netapp H300S, Netapp H500S Firmware, Netapp H500S.