CVE-2019-20163 : Security Advisory and Response
Discover the impact of CVE-2019-20163 found in GPAC versions 0.8.0 and 0.9.0-development-20191109, allowing attackers to execute arbitrary code. Learn about mitigation steps and necessary updates.
A problem was found in GPAC versions 0.8.0 and 0.9.0-development-20191109. The function gf_odf_avc_cfg_write_bs() in odf/descriptors.c contains a NULL pointer dereference.
Understanding CVE-2019-20163
An issue was discovered in GPAC version 0.8.0 and 0.9.0-development-20191109. There is a NULL pointer dereference in the function gf_odf_avc_cfg_write_bs() in odf/descriptors.c.
What is CVE-2019-20163?
CVE-2019-20163 is a vulnerability found in GPAC versions 0.8.0 and 0.9.0-development-20191109, leading to a NULL pointer dereference in a specific function.
The Impact of CVE-2019-20163
This vulnerability could potentially allow attackers to execute arbitrary code or cause a denial of service by exploiting the NULL pointer dereference.
Technical Details of CVE-2019-20163
The following technical details provide insight into the vulnerability.
Vulnerability Description
The function gf_odf_avc_cfg_write_bs() in odf/descriptors.c in GPAC versions 0.8.0 and 0.9.0-development-20191109 contains a NULL pointer dereference.
Affected Systems and Versions
- GPAC version 0.8.0
- GPAC version 0.9.0-development-20191109
Exploitation Mechanism
Attackers can exploit this vulnerability by crafting a malicious input to trigger the NULL pointer dereference, potentially leading to code execution or denial of service.
Mitigation and Prevention
Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2019-20163.
Immediate Steps to Take
- Apply the security update provided by GPAC promptly.
- Monitor official sources for any further security advisories.
Long-Term Security Practices
- Regularly update software and systems to patch known vulnerabilities.
- Conduct security assessments and audits to identify and address potential weaknesses.
- Implement proper input validation to prevent NULL pointer dereference vulnerabilities.
Patching and Updates
Ensure that all systems running GPAC are updated to versions that contain the fix for the NULL pointer dereference vulnerability.