CVE-2017-17130 : What You Need to Know
Learn about CVE-2017-17130, a vulnerability in Libav 12.2 that allows remote attackers to trigger a denial of service through a heap-based buffer overflow. Find out how to mitigate this issue.
Libav 12.2's ff_free_picture_tables function in libavcodec/mpegpicture.c is vulnerable to a heap-based buffer overflow, leading to a denial of service and potential other impacts.
Understanding CVE-2017-17130
This CVE involves a vulnerability in Libav 12.2 that can be exploited by remote attackers, potentially causing a denial of service.
What is CVE-2017-17130?
The vulnerability lies in the ff_free_picture_tables function in libavcodec/mpegpicture.c, allowing remote attackers to trigger a heap-based buffer overflow and application crash.
The Impact of CVE-2017-17130
The exploit can result in a denial of service condition and may have unspecified additional impacts, particularly related to vc1_decode_i_blocks_adv.
Technical Details of CVE-2017-17130
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability in Libav 12.2's ff_free_picture_tables function can be exploited remotely, potentially leading to a denial of service through a heap-based buffer overflow.
Affected Systems and Versions
- Product: N/A
- Vendor: N/A
- Version: N/A
Exploitation Mechanism
The exploit involves a crafted file related to vc1_decode_i_blocks_adv, triggering the heap-based buffer overflow and application crash.
Mitigation and Prevention
To address CVE-2017-17130, follow these mitigation strategies.
Immediate Steps to Take
- Apply the security update provided by Libav promptly.
- Monitor security mailing lists for any additional advisories.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement network security measures to prevent remote exploitation.
Patching and Updates
Ensure that all systems running Libav are updated with the latest security patches to mitigate the vulnerability.