CVE-2017-11757 : Vulnerability Insights and Analysis

Actian Pervasive PSQL v12.10 and Zen v13 are vulnerable to a heap-based buffer overflow, allowing remote attackers to execute unauthorized code via manipulated traffic to TCP port 1583.

Understanding CVE-2017-11757

This CVE involves a critical vulnerability in Actian Pervasive PSQL v12.10 and Zen v13 that can be exploited by attackers to execute arbitrary code.

What is CVE-2017-11757?

The vulnerability in Actian Pervasive PSQL v12.10 and Zen v13 allows remote attackers to execute unauthorized code by sending manipulated traffic to TCP port 1583. The issue arises from a heap-based buffer overflow after the encryption-key exchange between the server and client.

The Impact of CVE-2017-11757

Remote attackers can exploit this vulnerability to execute unauthorized code on affected systems.
The overflow occurs due to an integer underflow, resulting in a zero-byte allocation.
The specific function affected by this issue is _srvLnaConnectMP1.

Technical Details of CVE-2017-11757

This section provides more in-depth technical details about the vulnerability.

Vulnerability Description

The vulnerability is a heap-based buffer overflow in Actian Pervasive PSQL v12.10 and Zen v13, enabling remote code execution through manipulated traffic to TCP port 1583. The issue stems from an integer underflow leading to a zero-byte allocation.

Affected Systems and Versions

Actian Pervasive PSQL v12.10
Actian Zen v13

Exploitation Mechanism

Attackers can exploit this vulnerability by sending crafted traffic to TCP port 1583, triggering the heap-based buffer overflow and executing unauthorized code.

Mitigation and Prevention

Protecting systems from CVE-2017-11757 requires immediate action and long-term security practices.

Immediate Steps to Take

Apply vendor-supplied patches or updates to mitigate the vulnerability.
Monitor network traffic for any signs of exploitation.
Restrict network access to TCP port 1583 where possible.

Long-Term Security Practices

Regularly update and patch software to address known vulnerabilities.
Implement network segmentation to limit the impact of potential attacks.
Conduct regular security assessments and penetration testing to identify and address security weaknesses.

Patching and Updates

Actian Pervasive PSQL v12.10 and Zen v13 users should apply the latest patches provided by the vendor to address the vulnerability.