cve-2023-0240
Vulnerability from cvelistv5
Published
2023-01-30 13:17
Modified
2024-08-02 05:02
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
There is a logic error in io_uring's implementation which can be used to trigger a use-after-free vulnerability leading to privilege escalation. In the io_prep_async_work function the assumption that the last io_grab_identity call cannot return false is not true, and in this case the function will use the init_cred or the previous linked requests identity to do operations instead of using the current identity. This can lead to reference counting issues causing use-after-free. We recommend upgrading past version 5.10.161.
References
cve-coordination@google.comhttps://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93Mailing List, Patch, Vendor Advisory
cve-coordination@google.comhttps://github.com/gregkh/linux/commit/1e6fa5216a0e59ef02e8b6b40d553238a3b81d49Patch, Third Party Advisory
cve-coordination@google.comhttps://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/io_uring?h=linux-5.10.y&id=788d0824269bef539fe31a785b1517882eafed93Mailing List, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/gregkh/linux/commit/1e6fa5216a0e59ef02e8b6b40d553238a3b81d49Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://kernel.dance/#788d0824269bef539fe31a785b1517882eafed93Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://security.netapp.com/advisory/ntap-20230316-0001/
Impacted products
Vendor Product Version
Linux Linux Kernel Version: 5.10   <
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