CVE-2023-0459 (GCVE-0-2023-0459)
Vulnerability from cvelistv5
Published
2023-05-25 13:22
Modified
2024-09-26 18:39
Severity ?
6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-763 - Release of Invalid Pointer or Reference
Summary
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
Impacted products
Vendor Product Version
Linux Linux Kernel Version: 4b842e4e25b12951fa10dedb4bc16bc47e3b850c
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