CVE - CVE-2023-0459

CVE-ID
CVE-2023-0459	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
Copy_from_user on 64-bit versions of the Linux kernel does not implement the __uaccess_begin_nospec allowing a user to bypass the "access_ok" check and pass a kernel pointer to copy_from_user(). This would allow an attacker to leak information. We recommend upgrading beyond commit 74e19ef0ff8061ef55957c3abd71614ef0f42f47
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c URL:https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c MISC:https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47 URL:https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47
Assigning CNA
Google LLC
Date Record Created
20230124	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20230124)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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