Buffer overflow in Linux kernel - CVE-2023-53676
Published: October 8, 2025 / Updated: October 26, 2025
Vulnerability identifier: #VU116819
CSH Severity: Low
CVSS v4.0: 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-2023-53676
CWE-ID: CWE-119
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to memory corruption within the lio_target_nacl_info_show() function in drivers/target/iscsi/iscsi_target_configfs.c. A local user can escalate privileges on the system.
How to mitigate CVE-2023-53676
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/0cac6cbb9908309352a5d30c1876882771d3da50
- https://git.kernel.org/stable/c/114b44dddea1f8f99576de3c0e6e9059012002fc
- https://git.kernel.org/stable/c/2cbe6a88fbdd6e8aeab358eef61472e2de43d6f6
- https://git.kernel.org/stable/c/4738bf8b2d3635c2944b81b2a84d97b8c8b0978d
- https://git.kernel.org/stable/c/5353df78c22623b42a71d51226d228a8413097e2
- https://git.kernel.org/stable/c/801f287c93ff95582b0a2d2163f12870a2f076d4
- https://git.kernel.org/stable/c/bbe3ff47bf09db8956bc2eeb49d2d514d256ad2a
- https://git.kernel.org/stable/c/df349e84c2cb0dd05d98c8e1189c26ab4b116083
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.326