ZDI-CAN-20527: ZDI-24-020: Linux Kernel GSM Multiplexing Race Condition Local Privilege Escalation Vulnerability
First published: Tue Jan 09 2024(Updated: )
This vulnerability allows local attackers to execute arbitrary code on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the n_gsm driver. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to escalate privileges and execute code in the context of the kernel.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Red Hat Kernel-devel |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
Frequently Asked Questions
What is the severity of ZDI-CAN-20527?
ZDI-CAN-20527 is considered a critical vulnerability due to its ability to allow local attackers to execute arbitrary code.
How do I fix ZDI-CAN-20527?
To fix ZDI-CAN-20527, ensure that your Linux Kernel is updated to the latest patched version.
What systems are affected by ZDI-CAN-20527?
ZDI-CAN-20527 affects installations of the Linux Kernel.
Who can exploit ZDI-CAN-20527?
Local users with the ability to execute low-privileged code on the target system can exploit ZDI-CAN-20527.
What are the potential impacts of ZDI-CAN-20527?
The potential impacts of ZDI-CAN-20527 include unauthorized access and execution of arbitrary code on the affected systems.
- collector/zdi-published
- source/ZDI
- alias/ZDI-CAN-20527
- agent/last-modified-date
- agent/type
- agent/first-publish-date
- agent/severity
- agent/references
- agent/title
- agent/description
- agent/trending
- agent/source
- agent/tags
- agent/softwarecombine
- agent/event
- collector/zdi-advisory
- alias/ZDI-24-020
- alias/CVE-2023-6546
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/linux
- canonical/red hat kernel-devel