CVE-2020-23877
NixOS vulnerability analysis and mitigation

Overview

CVE-2020-23877 is a vulnerability in pdf2xml software that involves a NULL pointer dereference in the TextPage::restoreState function. The vulnerability was discovered in the source code file XmlOutputDev.cc at line 2765.

Technical details

The vulnerability is a NULL pointer dereference that occurs in the TextPage::restoreState function when attempting to access the top element of idStack. The crash occurs at memory address 0x000000000040e29b in the TextPage::restoreState function, where it attempts to access memory through an invalid pointer (SOURCE).

Impact

When exploited, this vulnerability causes a segmentation fault and program crash, leading to a denial of service condition. The crash occurs due to attempting to access memory through an invalid pointer, which could potentially be leveraged by an attacker to cause the application to terminate unexpectedly.

Additional resources


SourceThis report was generated using AI

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