Learn about CVE-2020-21603, a heap buffer overflow vulnerability in libde265 v1.0.4 that could allow attackers to execute arbitrary code. Find mitigation steps and preventive measures here.
CVE-2020-21603 is a vulnerability found in libde265 v1.0.4, involving a heap buffer overflow that can be exploited through a crafted file.
Understanding CVE-2020-21603
What is CVE-2020-21603?
The vulnerability in libde265 v1.0.4 allows attackers to trigger a heap buffer overflow by manipulating a specific file, potentially leading to arbitrary code execution or denial of service.
The Impact of CVE-2020-21603
This vulnerability could result in a security breach, enabling malicious actors to compromise systems running the affected version of libde265 and execute unauthorized commands.
Technical Details of CVE-2020-21603
Vulnerability Description
The vulnerability lies in the put_qpel_0_0_fallback_16 function of libde265 v1.0.4, where a heap buffer overflow occurs due to improper handling of crafted files.
Affected Systems and Versions
Exploitation Mechanism
Attackers can exploit this vulnerability by creating a specially crafted file that triggers the heap buffer overflow in the put_qpel_0_0_fallback_16 function, potentially leading to malicious code execution.
Mitigation and Prevention
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
It is crucial to apply patches provided by the libde265 project promptly to ensure that systems are protected against known vulnerabilities.