CVE-2023-4578
CVSS 3.1 Score 6.5 of 10 (medium)
Details
Published Sep 11, 2023
Updated: Sep 14, 2023
CWE ID 770
Summary
CVE-2023-4578 is a vulnerability affecting Firefox versions prior to 117, Firefox ESR before 115.2, and Thunderbird before 115.2. In these software editions, a flaw in `JS::CheckRegExpSyntax` function allows for the mismanagement of memory allocation during syntax error handling. If memory cannot be allocated when required, an Out of Memory exception should be triggered. However, this exception is instead mishandled as a syntax error. This error condition can potentially be exploited by malicious actors to execute arbitrary code.
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