CVE-2023-42079: pdf-xchange pdf-tools Use of Uninitialized Variable

Vulnerability summary

CVE-2023-42079 is a medium (CVSS 5.5) Use of Uninitialized Variable vulnerability in pdf-xchange pdf-tools. EPSS estimates a 0.44% chance of exploitation in the next 30 days, higher than 37.4% of scored vulnerabilities.

Timeline

1. 03-05-2024
   PublishedVulnerability first disclosed.
2. 02-08-2024
   Last modifiedVulnerability information updated.

Description

PDF-XChange Editor J2K File Parsing Uninitialized Variable Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of PDF-XChange Editor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the parsing of J2K files. The issue results from the lack of proper initialization of memory prior to accessing it. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-21851.

• CWE-457Use of Uninitialized VariableThe code uses a variable that has not been initialized, leading to unpredictable or unintended results.
• CWE-908Use of Uninitialized ResourceThe product uses or accesses a resource that has not been initialized.