CVE-2023-2236
Last modified
CVE-2023-2236 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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.. EPSS estimates a 0.43% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 5.19, < 6.0.11 |
| Netapp | Hci Baseboard Management Controller | h300s |
| Netapp | Hci Baseboard Management Controller | h410c |
| Netapp | Hci Baseboard Management Controller | h410s |
| Netapp | Hci Baseboard Management Controller | h500s |
| Netapp | Hci Baseboard Management Controller | h700s |
References
- https://security.netapp.com/advisory/ntap-20230601-0010/Vendor Advisory
- https://security.netapp.com/advisory/ntap-20230601-0010/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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