CVE-2017-5984 : Exploit Details and Defense Strategies
Learn about CVE-2017-5984, a heap-based buffer over-read vulnerability in ff_h264_execute_ref_pic_marking() within Libav 9.21's libavcodec. Find out the impact, affected systems, exploitation mechanism, and mitigation steps.
A heap-based buffer over-read vulnerability exists in ff_h264_execute_ref_pic_marking() within Libav 9.21's libavcodec.
Understanding CVE-2017-5984
This CVE entry describes a specific vulnerability in the Libav software.
What is CVE-2017-5984?
CVE-2017-5984 is a heap-based buffer over-read vulnerability found in the ff_h264_execute_ref_pic_marking() function within Libav 9.21's libavcodec.
The Impact of CVE-2017-5984
This vulnerability could potentially be exploited by an attacker to read sensitive information from the heap memory, leading to information disclosure or possibly a denial of service.
Technical Details of CVE-2017-5984
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Libav 9.21's libavcodec allows for a heap-based buffer over-read in the ff_h264_execute_ref_pic_marking() function.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by crafting a malicious input that triggers the buffer over-read in the ff_h264_execute_ref_pic_marking() function.
Mitigation and Prevention
Protecting systems from CVE-2017-5984 requires specific actions to mitigate the risk.
Immediate Steps to Take
- Apply patches provided by Libav to address the vulnerability.
- Monitor security advisories for any updates or additional patches.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Conduct security assessments and audits to identify and address vulnerabilities proactively.
Patching and Updates
Ensure that all systems running Libav 9.21 are updated with the latest patches to mitigate the CVE-2017-5984 vulnerability.