vulnerability
Ubuntu: (CVE-2023-2236): linux vulnerability
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:L/AC:L/Au:S/C:C/I:C/A:C) | 2023-05-01 | 2024-11-19 | 2025-02-20 |
Severity
7
CVSS
(AV:L/AC:L/Au:S/C:C/I:C/A:C)
Published
2023-05-01
Added
2024-11-19
Modified
2025-02-20
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.
Solution(s)
ubuntu-upgrade-linuxubuntu-upgrade-linux-awsubuntu-upgrade-linux-azureubuntu-upgrade-linux-gcpubuntu-upgrade-linux-hwe-5-19ubuntu-upgrade-linux-ibmubuntu-upgrade-linux-kvmubuntu-upgrade-linux-lowlatencyubuntu-upgrade-linux-lowlatency-hwe-5-19ubuntu-upgrade-linux-oem-6-0ubuntu-upgrade-linux-oracleubuntu-upgrade-linux-raspiubuntu-upgrade-linux-riscvubuntu-upgrade-linux-starfive
References
- CVE-2023-2236
- https://attackerkb.com/topics/CVE-2023-2236
- URL-https://git.kernel.org/linus/9d94c04c0db024922e886c9fd429659f22f48ea4
- URL-https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=9d94c04c0db024922e886c9fd429659f22f48ea4
- URL-https://kernel.dance/9d94c04c0db024922e886c9fd429659f22f48ea4
- URL-https://www.cve.org/CVERecord?id=CVE-2023-2236
NEW
Explore Exposure Command
Confidently identify and prioritize exposures from endpoint to cloud with full attack surface visibility and threat-aware risk context.