CVE-2021-46544 : Exploit Details and Defense Strategies
Learn about CVE-2021-46544 impacting Cesanta MJS v2.20.0, leading to a Denial of Service. Find mitigation steps and long-term security practices to protect your systems.
Cesanta MJS v2.20.0 contains a SEGV vulnerability that can result in a Denial of Service (DoS).
Understanding CVE-2021-46544
What is CVE-2021-46544?
Cesanta MJS v2.20.0 is vulnerable to a SEGV issue through /usr/lib/x86_64-linux-gnu/libasan.so.4+0x59e19, potentially leading to a DoS attack.
The Impact of CVE-2021-46544
This vulnerability allows attackers to cause a DoS, disrupting the availability of the affected system.
Technical Details of CVE-2021-46544
Vulnerability Description
The vulnerability in Cesanta MJS v2.20.0 can be exploited through /usr/lib/x86_64-linux-gnu/libasan.so.4+0x59e19, posing a risk of DoS.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited to trigger a SEGV issue leading to a Denial of Service impacting Cesanta MJS v2.20.0.
Mitigation and Prevention
Immediate Steps to Take
- Monitor vendor security bulletins for updates
- Apply patches or updates provided by Cesanta promptly
Long-Term Security Practices
- Regularly update software and dependencies
- Implement network segmentation and access controls
Patching and Updates
- Keep Cesanta MJS v2.20.0 up to date with the latest security patches to mitigate the SEGV vulnerability.