Critical Security Update for perl-XML-Parser: Memory and Heap Corruption Vulnerabilities
Summary
ALSA-2026:7680: Important: perl-XML-Parser security update. Affects perl-XML-Parser versions < 2.47-6.1.el10_1. Fixed in 2.47-6.1.el10_1. How to fix ↓
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Background
perl-XML-Parser is a Perl module that provides functionalities to parse XML documents. It is built on the XML::Parser::Expat interface, which utilizes James Clark's expat library. This module allows users to create instances for parsing XML, with customizable options for handling various XML structures. However, due to its design, it is susceptible to vulnerabilities that can lead to severe security issues when processing malformed XML input.
Vulnerability Detail
The vulnerabilities identified in perl-XML-Parser stem from improper handling of deeply nested XML files and crafted XML input. Specifically, CVE-2006-10002 describes a heap corruption issue that can lead to denial of service, while CVE-2006-10003 highlights a memory corruption vulnerability. Both vulnerabilities can be exploited by attackers to crash applications or execute arbitrary code, posing significant risks to systems relying on this module for XML parsing.
How To Fix
Minimum fixed version
2.47-6.1.el10_1
This is the first release that contains the fix.
sudo dnf update perl-XML-ParserTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate updating is not feasible, consider implementing input validation to sanitize XML data before processing. This can help mitigate the risk of exploitation by rejecting malformed XML files.
Conclusion
The perl-XML-Parser module has critical vulnerabilities that can lead to memory and heap corruption, posing serious risks to applications that utilize it. It is crucial to update to the latest patched version to safeguard against these vulnerabilities. Additionally, employing input validation can serve as a temporary measure until updates can be applied.
See every vulnerability recorded for perl-XML-Parser →
FAQ
perl-XML-Parser is a Perl module designed for parsing XML documents, built on the XML::Parser::Expat interface.
The main vulnerabilities include memory corruption from deeply nested XML files and heap corruption from crafted XML input, leading to potential denial of service.
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Implement input validation to sanitize XML data before processing as a temporary workaround to mitigate risks.
For detailed information, refer to the CVE pages for CVE-2006-10002 and CVE-2006-10003, which provide insights into the vulnerabilities and their impacts.
Related vulnerabilities
Recent vulnerabilities recorded for perl-XML-Parser.
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