CVE-2023-2598
published 2023-06-01CVE-2023-2598: A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds…
PriorityP344high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
1.37%
68.8th percentile
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
Affected
10 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | — | — |
| linux | linux_kernel | — | — |
| linux | linux_kernel | >= 6.3 < 6.3.2 | 6.3.2 |
| msrc | cbl2_kernel_5.15.116.1-1_on_cbl_mariner_2.0 | — | — |
| msrc | cm1_kernel_5.10.183.1-1_on_cbl_mariner_1.0 | — | — |
| netapp | hci_baseboard_management_controller | — | — |
| netapp | hci_baseboard_management_controller | — | — |
| netapp | hci_baseboard_management_controller | — | — |
| netapp | hci_baseboard_management_controller | — | — |
| netapp | hci_baseboard_management_controller | — | — |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8LOW
vendor_msrc7.8HIGH
vendor_redhat7.8HIGH
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Microsoft
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end o
vendor_msrc·2023-06-13·CVSS 7.8
CVE-2023-2598 [HIGH] CWE-787 A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end o
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability?
One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If
Red Hat
kernel: io_uring out-of-bounds access to physical memory
vendor_redhat·2023-05-03·CVSS 7.8
CVE-2023-2598 [HIGH] CWE-416 kernel: io_uring out-of-bounds access to physical memory
kernel: io_uring out-of-bounds access to physical memory
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
Statement: There was no shipped kernel version were seen affected with this problem. These files are not built in our source code.
Package: kernel (Red Hat Enterprise Linux 6) - Not affected
Package: kernel (
Debian
CVE-2023-2598: linux - A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buff...
vendor_debian·2023·CVSS 7.8
CVE-2023-2598 [HIGH] CVE-2023-2598: linux - A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buff...
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
GHSA
GHSA-mmvq-3rp7-6cw4: A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc
ghsa_unreviewed·2023-06-01
CVE-2023-2598 [HIGH] CWE-416 GHSA-mmvq-3rp7-6cw4: A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
OSV
CVE-2023-2598: A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc
osv·2023-06-01·CVSS 7.8
CVE-2023-2598 [HIGH] CVE-2023-2598: A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc
A flaw was found in the fixed buffer registration code for io_uring (io_sqe_buffer_register in io_uring/rsrc.c) in the Linux kernel that allows out-of-bounds access to physical memory beyond the end of the buffer. This flaw enables full local privilege escalation.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
http://www.openwall.com/lists/oss-security/2024/04/24/3https://security.netapp.com/advisory/ntap-20230703-0006/https://www.openwall.com/lists/oss-security/2023/05/08/3http://www.openwall.com/lists/oss-security/2024/04/24/3https://security.netapp.com/advisory/ntap-20230703-0006/https://www.openwall.com/lists/oss-security/2023/05/08/3
2023-06-01
Published