CVE-2017-5843 : Security Advisory and Response

GStreamer versions prior to 1.10.3 contain multiple use-after-free vulnerabilities that can be exploited by remote attackers, leading to a denial of service. These vulnerabilities involve specific functions within GStreamer.

Understanding CVE-2017-5843

GStreamer versions before 1.10.3 are susceptible to remote attacks due to use-after-free vulnerabilities in certain functions.

What is CVE-2017-5843?

The vulnerabilities in GStreamer versions prior to 1.10.3 involve the gst_mini_object_unref, gst_tag_list_unref, and gst_mxf_demux_update_essence_tracks functions. Remote attackers can exploit these vulnerabilities to cause a denial of service by manipulating stream tags, such as the 02785736.mxf file.

The Impact of CVE-2017-5843

These vulnerabilities are categorized as use-after-free and can be exploited remotely. By manipulating stream tags, attackers can cause a crash, resulting in a denial of service.

Technical Details of CVE-2017-5843

GStreamer versions before 1.10.3 are affected by multiple use-after-free vulnerabilities.

Vulnerability Description

The vulnerabilities involve the gst_mini_object_unref, gst_tag_list_unref, and gst_mxf_demux_update_essence_tracks functions in GStreamer before version 1.10.3.

Affected Systems and Versions

Product: N/A
Vendor: N/A
Versions affected: N/A

Exploitation Mechanism

Remote attackers can exploit these vulnerabilities by manipulating stream tags, such as the 02785736.mxf file, to cause a denial of service.

Mitigation and Prevention

It is crucial to take immediate steps to address and prevent the exploitation of CVE-2017-5843.

Immediate Steps to Take

Update GStreamer to version 1.10.3 or later to mitigate the vulnerabilities.
Monitor security advisories for any patches or updates related to GStreamer.

Long-Term Security Practices

Regularly update software and libraries to the latest versions to prevent known vulnerabilities.
Implement network security measures to detect and block potential attacks.

Patching and Updates

Apply patches and updates provided by GStreamer to address the use-after-free vulnerabilities.