CVE-2023-53000
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53000
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53000.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53000
- Downstream
- Related
- Published
- 2025-03-27T16:43:33.208Z
- Modified
- 2025-11-26T19:33:44.735963Z
- Summary
- netlink: prevent potential spectre v1 gadgets
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
netlink: prevent potential spectre v1 gadgets
Most netlink attributes are parsed and validated from _nlavalidateparse() or validatenla()
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.
arrayindexnospec() 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.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/blob/9c3874e559580d6c6ec8d449812ac11277724770/cves/2023/53xxx/CVE-2023-53000.json" }- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/3e5082b1c66c7783fbcd79b5b178573230e528ff
- https://git.kernel.org/stable/c/41b74e95f297ac360ca7ed6bf200100717cb6c45
- https://git.kernel.org/stable/c/539ca5dcbc91134bbe2c45677811c31d8b030d2d
- https://git.kernel.org/stable/c/992e4ff7116a77968039277b5d6aaa535c2f2184
- https://git.kernel.org/stable/c/f0950402e8c76e7dcb08563f1b4e8000fbc62455
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbfa83a9e03cf8d501c6272999843470afecb32edFixed3e5082b1c66c7783fbcd79b5b178573230e528ff
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbfa83a9e03cf8d501c6272999843470afecb32edFixed539ca5dcbc91134bbe2c45677811c31d8b030d2d
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbfa83a9e03cf8d501c6272999843470afecb32edFixed41b74e95f297ac360ca7ed6bf200100717cb6c45
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbfa83a9e03cf8d501c6272999843470afecb32edFixed992e4ff7116a77968039277b5d6aaa535c2f2184
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introducedbfa83a9e03cf8d501c6272999843470afecb32edFixedf0950402e8c76e7dcb08563f1b4e8000fbc62455