SB2024052956 - Security restrictions bypass in Linux kernel gsm
Published: May 29, 2024 Updated: May 14, 2025
Security Bulletin ID
SB2024052956
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2023-52880)
The vulnerability allows a local user to bypass implemented security restrictions.
The vulnerability exists due to missing permissions checks within the gsmld_open() function in drivers/tty/n_gsm.c. A local user with CAP_NET_ADMIN capability can create a GSM network.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/7d303dee473ba3529d75b63491e9963342107bed
- https://git.kernel.org/stable/c/7a529c9023a197ab3bf09bb95df32a3813f7ba58
- https://git.kernel.org/stable/c/ada28eb4b9561aab93942f3224a2e41d76fe57fa
- https://git.kernel.org/stable/c/2d154a54c58f9c8375bfbea9f7e51ba3bfb2e43a
- https://git.kernel.org/stable/c/2b85977977cbd120591b23c2450e90a5806a7167
- https://git.kernel.org/stable/c/67c37756898a5a6b2941a13ae7260c89b54e0d88
- https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.312
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.10.215
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.155
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.274
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.1.86
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6