{"id":"CVE-2023-0459","summary":"Copy_from_user Spectre-V1 Gadget in Linux Kernel","details":"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","modified":"2026-10-08T02:47:51.721691809Z","published":"2023-05-25T13:22:38.338Z","related":["SUSE-SU-2023:3302-1","SUSE-SU-2023:3309-1","SUSE-SU-2023:3311-1","SUSE-SU-2023:3313-1","SUSE-SU-2023:3318-1","SUSE-SU-2023:3324-1","SUSE-SU-2023:3329-1","SUSE-SU-2023:3333-1","SUSE-SU-2023:3349-1","SUSE-SU-2023:3376-1","SUSE-SU-2023:3377-1","SUSE-SU-2023:3390-1","SUSE-SU-2023:3391-1","SUSE-SU-2023:3392-1","SUSE-SU-2023:3421-1"],"database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0459.json","cna_assigner":"Google","cwe_ids":["CWE-763"]},"references":[{"type":"WEB","url":"https://git.kernel.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/0xxx/CVE-2023-0459.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-0459"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/4b842e4e25b12951fa10dedb4bc16bc47e3b850c"},{"type":"FIX","url":"https://github.com/torvalds/linux/commit/74e19ef0ff8061ef55957c3abd71614ef0f42f47"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org","events":[{"introduced":"4b842e4e25b12951fa10dedb4bc16bc47e3b850c"},{"last_affected":"74e19ef0ff8061ef55957c3abd71614ef0f42f47"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-0459.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]}