CVE-2019-8378 : Security Advisory and Response
Learn about CVE-2019-8378, a vulnerability in Bento4 1.5.1-628 that allows attackers to trigger a Denial of Service or other impacts by exploiting a heap-based buffer over-read. Find mitigation steps and prevention measures here.
A vulnerability was found in Bento4 1.5.1-628, specifically in the AP4_BitStream::ReadBytes() function in the Codecs/Ap4BitStream.cpp file. This vulnerability is similar to CVE-2017-14645 and involves a heap-based buffer over-read. An attacker can exploit this vulnerability by sending a manipulated file to the aac2mp4 binary, leading to a Denial of Service (Segmentation fault) or potentially other consequences.
Understanding CVE-2019-8378
This CVE involves a heap-based buffer over-read vulnerability in Bento4 1.5.1-628, which can be triggered by a crafted file.
What is CVE-2019-8378?
CVE-2019-8378 is a security vulnerability in Bento4 1.5.1-628 that allows an attacker to cause a Denial of Service or potentially achieve other impacts by exploiting a heap-based buffer over-read.
The Impact of CVE-2019-8378
The vulnerability can result in a Denial of Service (Segmentation fault) or potentially allow attackers to execute other malicious activities on the affected system.
Technical Details of CVE-2019-8378
This section provides more technical insights into the vulnerability.
Vulnerability Description
The vulnerability exists in the AP4_BitStream::ReadBytes() function in the Codecs/Ap4BitStream.cpp file of Bento4 1.5.1-628, similar to CVE-2017-14645, involving a heap-based buffer over-read.
Affected Systems and Versions
- Affected Version: Bento4 1.5.1-628
- Affected Function: AP4_BitStream::ReadBytes()
Exploitation Mechanism
An attacker can exploit this vulnerability by sending a manipulated file to the aac2mp4 binary, triggering the heap-based buffer over-read.
Mitigation and Prevention
To address CVE-2019-8378, follow these mitigation strategies:
Immediate Steps to Take
- Apply vendor patches or updates promptly.
- Avoid opening files from untrusted sources.
- Monitor network traffic for any suspicious activities.
Long-Term Security Practices
- Regularly update software and applications to the latest versions.
- Conduct security training for employees to recognize and report potential threats.
- Implement network segmentation to limit the impact of potential attacks.
Patching and Updates
Ensure that Bento4 is updated to a patched version that addresses the heap-based buffer over-read vulnerability.