CVE-2021-42252
7.8 HIGHAn issue was discovered in aspeed_lpc_ctrl_mmap in drivers/soc/aspeed/aspeed-lpc-ctrl.c in the Linux kernel before 5.14.6
Published: 2021-10-11 · Last updated: 2026-06-17
Severity and scoring
- CVSS
- 7.8 HIGH
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
| Vendor | Product |
|---|---|
| linux | h300e_firmware, h300s_firmware, h410c_firmware |
| netapp | h300e_firmware, h300s_firmware, h410c_firmware |
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.
Source: NVD
References
- [NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-42252
- [Vendor advisory]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96
- [Other]https://security.netapp.com/advisory/ntap-20211112-0006/
- [Vendor advisory]https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6
- [Patch]https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96
- [Other]https://security.netapp.com/advisory/ntap-20211112-0006/
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