CVE-2021-39545 : What You Need to Know
Explore details of CVE-2021-39545, a NULL pointer dereference vulnerability in sela allowing attackers to cause Denial of Service. Learn more about the impact, technical details, and mitigation strategies.
This article provides insights into CVE-2021-39545, a vulnerability in sela that can lead to Denial of Service.
Understanding CVE-2021-39545
CVE-2021-39545 is a NULL pointer dereference vulnerability in the rice::RiceDecoder::process() function of sela through 20200412.
What is CVE-2021-39545?
The vulnerability in sela allows an attacker to cause Denial of Service by exploiting a NULL pointer dereference in the rice::RiceDecoder::process() function.
The Impact of CVE-2021-39545
The vulnerability can be exploited to trigger a Denial of Service attack on systems running the affected versions of sela.
Technical Details of CVE-2021-39545
CVE-2021-39545 has the following technical details:
Vulnerability Description
A NULL pointer dereference exists in the rice::RiceDecoder::process() function of sela through 20200412, leading to a Denial of Service risk.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by an attacker to trigger a Denial of Service on systems running the affected sela versions.
Mitigation and Prevention
After understanding CVE-2021-39545, consider the following mitigation steps:
Immediate Steps to Take
- Apply vendor patches or updates once available.
- Monitor vendor communications for security advisories.
Long-Term Security Practices
- Regularly update software and firmware to the latest versions.
- Implement strong access controls and network segmentation.
Patching and Updates
- Keep systems up to date with the latest security patches from the vendor to mitigate the risk of exploitation.