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.
Advisories
Source ID Title
EUVD EUVD EUVD-2023-54432 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.
Ubuntu USN Ubuntu USN USN-6320-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-6405-1 Thunderbird vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 18 Dec 2025 15:30:00 +0000

Type Values Removed Values Added
Title Mozilla: Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception Error reporting methods in SpiderMonkey could have triggered an Out of Memory Exception

Thu, 19 Sep 2024 20:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-12-18T15:23:11.916Z

Reserved: 2023-08-29T03:36:49.709Z

Link: CVE-2023-4578

cve-icon Vulnrichment

Updated: 2024-08-02T07:31:06.622Z

cve-icon NVD

Status : Modified

Published: 2023-09-11T09:15:09.347

Modified: 2024-11-21T08:35:28.180

Link: CVE-2023-4578

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-08-29T00:00:00Z

Links: CVE-2023-4578 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses