CVE-2020-35198 : Security Advisory and Response

An issue was discovered in Wind River VxWorks 7 where the memory allocator has a possible integer overflow, leading to memory corruption.

Understanding CVE-2020-35198

This CVE involves a vulnerability in the memory allocator of Wind River VxWorks 7, potentially resulting in memory corruption due to an integer overflow.

What is CVE-2020-35198?

The vulnerability in Wind River VxWorks 7's memory allocator may cause the allocated memory to be smaller than the specified buffer size, leading to memory corruption.

The Impact of CVE-2020-35198

The integer overflow issue in the memory allocator of Wind River VxWorks 7 could be exploited by attackers to corrupt memory, potentially leading to system instability or unauthorized access.

Technical Details of CVE-2020-35198

This section provides more technical insights into the vulnerability.

Vulnerability Description

The vulnerability arises from an integer overflow in the calculation of memory block sizes allocated by calloc, resulting in memory corruption.

Affected Systems and Versions

Affected Systems: Wind River VxWorks 7
Affected Versions: Not specified

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating the memory allocation process, causing memory corruption and potentially executing malicious code.

Mitigation and Prevention

Protecting systems from CVE-2020-35198 requires immediate actions and long-term security measures.

Immediate Steps to Take

Apply patches or updates provided by Wind River to address the vulnerability.
Monitor system logs for any unusual activities that might indicate exploitation.

Long-Term Security Practices

Regularly update and patch software to prevent known vulnerabilities.
Implement network segmentation and access controls to limit the impact of potential attacks.

Patching and Updates

Ensure that the latest security patches and updates from Wind River are applied promptly to mitigate the risk of exploitation.