#VU93471 Buffer overflow in Linux kernel - CVE-2023-52622
Published: June 28, 2024 / Updated: May 13, 2025
Vulnerability identifier: #VU93471
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2023-52622
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerable software:
Linux kernel
Linux kernel
Software vendor:
Linux Foundation
Linux Foundation
Description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the alloc_flex_gd() and ext4_setup_next_flex_gd() functions in fs/ext4/resize.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
External links
- https://git.kernel.org/stable/c/cd1f93ca97a9136989f3bd2bf90696732a2ed644
- https://git.kernel.org/stable/c/b183fe8702e78bba3dcef8e7193cab6898abee07
- https://git.kernel.org/stable/c/cfbbb3199e71b63fc26cee0ebff327c47128a1e8
- https://git.kernel.org/stable/c/d76c8d7ffe163c6bf2f1ef680b0539c2b3902b90
- https://git.kernel.org/stable/c/6d2cbf517dcabc093159cf138ad5712c9c7fa954
- https://git.kernel.org/stable/c/8b1413dbfe49646eda2c00c0f1144ee9d3368e0c
- https://git.kernel.org/stable/c/dc3e0f55bec4410f3d74352c4a7c79f518088ee2
- https://git.kernel.org/stable/c/5d1935ac02ca5aee364a449a35e2977ea84509b0
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.307
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.210
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.149
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.269
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.77
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.16
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.7.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.8