CVE-2021-29507 : Vulnerability Insights and Analysis
Learn about CVE-2021-29507 affecting GENIVI DLT versions 2.10.0 to 2.18.6. Understand the impact, technical details, and mitigation strategies for this configuration file vulnerability.
GENIVI Diagnostic Log and Trace (DLT) provides a log and trace interface. In versions of GENIVI DLT between 2.10.0 and 2.18.6, a configuration file containing special characters could cause a vulnerable component to crash, leading to a failure of applications generating dlt logs in the system. This vulnerability has a CVSS base score of 5.7 (Medium severity) with a high availability impact.
Understanding CVE-2021-29507
This section will cover the details of the CVE-2021-29507 vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2021-29507?
CVE-2021-29507 refers to a vulnerability in GENIVI DLT where a configuration file with special characters can crash the dlt-daemon, affecting log generation in the system.
The Impact of CVE-2021-29507
The impact of CVE-2021-29507 includes a notable availability impact, where the vulnerable component crash can disrupt applications reliant on the dlt logs.
Technical Details of CVE-2021-29507
Let's delve into the technical aspects of this vulnerability.
Vulnerability Description
The presence of special characters in the configuration file of GENIVI DLT between versions 2.10.0 and 2.18.6 triggers a crash in the dlt daemon, leading to log generation failures.
Affected Systems and Versions
GENIVI DLT versions between 2.10.0 and 2.18.6 are affected by this vulnerability, exposing systems leveraging these versions to the risk of crashes.
Exploitation Mechanism
The vulnerability is triggered by inadvertently including special characters in the configuration file, causing the dlt daemon to crash and disrupt log generation.
Mitigation and Prevention
Understanding how to mitigate and prevent CVE-2021-29507 is crucial for securing systems.
Immediate Steps to Take
As of the time of publication, no patch is available. However, manually verifying the configuration file's integrity can help identify and remove any special characters causing the crash.
Long-Term Security Practices
Implementing strict input validation protocols and regularly reviewing configuration files can prevent similar vulnerabilities in the future.
Patching and Updates
Keep an eye on GENIVI updates and security advisories for a patch to address this vulnerability in the affected versions.