Bug 2368264 (CVE-2018-25110)

Summary: CVE-2018-25110 markedjs: Regular Expression Denial of Service (ReDoS) in markedjs/marked
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A regular expression denial of service was found in markedjs. This issue may be triggered through specially crafted input that can lead to catastrophic recursion, where the process repeatedly calls itself into an uncontrolled loop, consuming all available system resources and possibly leading to denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2368325, 2368326    
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Description OSIDB Bzimport 2025-05-23 15:01:07 UTC 
Marked prior to version 0.3.17 is vulnerable to a Regular Expression Denial of Service (ReDoS) attack due to catastrophic backtracking in several regular expressions used for parsing HTML tags and markdown links. An attacker can exploit this vulnerability by providing specially crafted markdown input, such as deeply nested or repetitively structured brackets or tag attributes, which cause the parser to hang and lead to a Denial of Service.