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MFSA2023-36 Firefox: Security Vulnerabilities fixed in Firefox ESR 115.2 (CVE-2023-4578)

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MFSA2023-36 Firefox: Security Vulnerabilities fixed in Firefox ESR 115.2 (CVE-2023-4578)

Severity
4
CVSS
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
Published
08/29/2023
Created
08/30/2023
Added
08/30/2023
Modified
09/16/2023

Description

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.

Solution(s)

  • mozilla-firefox-esr-upgrade-115_2

References

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