CVE-2023-2236
published 2023-05-01CVE-2023-2236: A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and…
PriorityP340high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.43%
34.7th percentile
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.
Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.
We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.0.12-1 (bookworm) | linux 6.0.12-1 (bookworm) |
| linux | linux_kernel | >= 0 < 6.0.12-1 | 6.0.12-1 |
| linux | linux_kernel | >= 0 < 6.0.12-1 | 6.0.12-1 |
| linux | linux_kernel | >= 0 < 6.0.12-1 | 6.0.12-1 |
| linux | linux_kernel | >= 5.19 < 6.1 | 6.1 |
| linux | linux_kernel | >= 5.19 < 6.0.11 | 6.0.11 |
| 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_debian7.8HIGH
vendor_redhat7.8HIGH
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Debian
CVE-2023-2236: linux - A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exp...
vendor_debian·2023·CVSS 7.8
CVE-2023-2236 [HIGH] CVE-2023-2236: linux - A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exp...
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
Scope: local
bookworm: resolved (fixed in 6.0.12-1)
bullseye: resolved
forky: resolved (fixed in 6.0.12-1)
sid: resolved (fixed in 6.0.12-1)
trixie: resolved (fixed in 6.0.12-1)
Red Hat
kernel: use-after-free in io_uring/filetable in io_install_fixed_file
vendor_redhat·2022-11-23·CVSS 7.8
CVE-2023-2236 [HIGH] CWE-416 kernel: use-after-free in io_uring/filetable in io_install_fixed_file
kernel: use-after-free in io_uring/filetable in io_install_fixed_file
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.
Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.
We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
A use-after-free vulnerability was found in io_install_fixed_file in io_uring/filetable.c in the Linux Kernel’s io_uring subsystem. This flaw allows an attacker to achieve 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.
Mitigation: Mitigation for this
GHSA
GHSA-j4r5-9qqm-p694: A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation
ghsa_unreviewed·2023-07-06
CVE-2023-2236 [HIGH] CWE-416 GHSA-j4r5-9qqm-p694: A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation.
Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability.
We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
OSV
CVE-2023-2236: A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation
osv·2023-05-01·CVSS 7.8
CVE-2023-2236 [HIGH] CVE-2023-2236: A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation
A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Both io_install_fixed_file and its callers call fput in a file in case of an error, causing a reference underflow which leads to a use-after-free vulnerability. We recommend upgrading past commit 9d94c04c0db024922e886c9fd429659f22f48ea4.
No detection rules found.
No public exploits indexed.
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4https://security.netapp.com/advisory/ntap-20230601-0010/https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4https://security.netapp.com/advisory/ntap-20230601-0010/
2023-05-01
Published