CVE-2023-31082 : Vulnerability Insights and Analysis

An issue was discovered in drivers/tty/n_gsm.c in the Linux kernel 6.2. There is a sleeping function called from an invalid context in gsmld_write, which will block the kernel.

Understanding CVE-2023-31082

An overview of the identified issue and its impact.

What is CVE-2023-31082?

CVE-2023-31082 refers to an issue found in the Linux kernel 6.2 specifically in drivers/tty/n_gsm.c. The problem involves a sleeping function being called from an invalid context in gsmld_write, resulting in kernel blocking.

The Impact of CVE-2023-31082

The vulnerability can potentially lead to system instability, denial of service, and escalation of privileges by malicious actors.

Technical Details of CVE-2023-31082

Examining the specifics of the vulnerability.

Vulnerability Description

The vulnerability arises due to a sleeping function being invoked from an inappropriate context in gsmld_write within the Linux kernel version 6.2.

Affected Systems and Versions

All systems running Linux kernel 6.2 are susceptible to this issue.

Exploitation Mechanism

Exploiting this vulnerability could allow attackers to disrupt the normal operation of the system, leading to potential security breaches.

Mitigation and Prevention

Strategies to address and safeguard against CVE-2023-31082.

Immediate Steps to Take

Update to a patched version of the Linux kernel to mitigate the vulnerability.
Monitor for any suspicious activity that may indicate exploitation of this issue.

Long-Term Security Practices

Regularly update and maintain system software to prevent known vulnerabilities from being exploited.
Employ network security measures to detect and block malicious traffic.

Patching and Updates

Stay informed about security advisories and promptly apply patches provided by the Linux kernel maintainers to address CVE-2023-31082.