CVE - CVE-2023-53000

CVE-ID
CVE-2023-53000	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
In the Linux kernel, the following vulnerability has been resolved: netlink: prevent potential spectre v1 gadgets Most netlink attributes are parsed and validated from __nla_validate_parse() or validate_nla() u16 type = nla_type(nla); if (type == 0 \|\| type > maxtype) { /* error or continue */ } @type is then used as an array index and can be used as a Spectre v1 gadget. array_index_nospec() can be used to prevent leaking content of kernel memory to malicious users. This should take care of vast majority of netlink uses, but an audit is needed to take care of others where validation is not yet centralized in core netlink functions.
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://git.kernel.org/stable/c/3e5082b1c66c7783fbcd79b5b178573230e528ff URL:https://git.kernel.org/stable/c/3e5082b1c66c7783fbcd79b5b178573230e528ff MISC:https://git.kernel.org/stable/c/41b74e95f297ac360ca7ed6bf200100717cb6c45 URL:https://git.kernel.org/stable/c/41b74e95f297ac360ca7ed6bf200100717cb6c45 MISC:https://git.kernel.org/stable/c/539ca5dcbc91134bbe2c45677811c31d8b030d2d URL:https://git.kernel.org/stable/c/539ca5dcbc91134bbe2c45677811c31d8b030d2d MISC:https://git.kernel.org/stable/c/992e4ff7116a77968039277b5d6aaa535c2f2184 URL:https://git.kernel.org/stable/c/992e4ff7116a77968039277b5d6aaa535c2f2184 MISC:https://git.kernel.org/stable/c/f0950402e8c76e7dcb08563f1b4e8000fbc62455 URL:https://git.kernel.org/stable/c/f0950402e8c76e7dcb08563f1b4e8000fbc62455
Assigning CNA
kernel.org
Date Record Created
20250327	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 (20250327)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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