CVE-2021-42252

Severity

78%

Complexity

18%

Confidentiality

98%

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 3.1 Base Score 7.8. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).

CVSS 2.0 Base Score 4.6. CVSS Attack Vector: local. CVSS Attack Complexity: low. CVSS Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P).

Overview

First reported 3 years ago

2021-10-11 19:15:00

Last updated 3 years ago

2021-12-03 03:07:00

Affected Software

Linux Kernel

References

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=b49a0e69a7b1a68c8d3f64097d06dabb770fec96

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

Patch, Vendor Advisory

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.14.6

Release Notes, Vendor Advisory

https://security.netapp.com/advisory/ntap-20211112-0006/

https://security.netapp.com/advisory/ntap-20211112-0006/

Third Party Advisory

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