Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2023-4578

When calling `JS::CheckRegExpSyntax` a Syntax Error could have been set which would end in calling `convertToRuntimeErrorAndClear`. A path in the function could attempt to allocate memory when none is available which would have caused a newly created Out of Memory exception to be mishandled as a Syntax Error. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 31.3%
CVSS Severity
CVSS v3 Score 6.5
Products affected by CVE-2023-4578


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