CVE-2018-16646 Explained : Impact and Mitigation

Poppler 0.68.0's Parser::getObj() function may lead to endless recursive calls when a specially crafted file is processed, potentially enabling a Denial-of-Service (DoS) attack.

Understanding CVE-2018-16646

Poppler 0.68.0's vulnerability allows a remote attacker to exploit the Parser::getObj() function, causing a DoS attack.

What is CVE-2018-16646?

Poppler 0.68.0's Parser::getObj() function can be manipulated by an attacker to trigger infinite recursion, leading to a DoS attack.

The Impact of CVE-2018-16646

Exploiting this vulnerability can result in a DoS attack, disrupting the availability of the affected system.

Technical Details of CVE-2018-16646

Poppler 0.68.0's vulnerability in the Parser::getObj() function can have severe consequences.

Vulnerability Description

The Parser::getObj() function in Parser.cc of Poppler 0.68.0 may lead to endless recursive calls when processing a carefully crafted file, enabling a DoS attack.

Affected Systems and Versions

Product: n/a
Vendor: n/a
Version: 0.68.0

Exploitation Mechanism

Attackers can exploit a carefully crafted file to trigger infinite recursion in the Parser::getObj() function, potentially causing a DoS attack.

Mitigation and Prevention

Taking immediate steps and implementing long-term security practices are crucial to mitigating the risks associated with CVE-2018-16646.

Immediate Steps to Take

Update Poppler to a non-vulnerable version.
Avoid opening files from untrusted sources.
Monitor system resources for unusual activity.

Long-Term Security Practices

Regularly update software and apply security patches.
Conduct security audits to identify and address vulnerabilities.
Educate users on safe file handling practices.

Patching and Updates

Apply the latest security updates provided by Poppler to address the vulnerability in Parser::getObj().