Vulnerability Monitor

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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.

Published

2023-09-11T09:15:09.347

Last Modified

2024-11-21T08:35:28.180

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses

Type: Primary
CWE-770

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	mozilla	firefox	< 117.0	Yes
Application	mozilla	firefox_esr	< 115.2	Yes
Application	mozilla	thunderbird	< 115.2	Yes

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1839007 Issue Tracking, Permissions Required ([email protected])
https://www.mozilla.org/security/advisories/mfsa2023-34/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2023-36/ Vendor Advisory ([email protected])
https://www.mozilla.org/security/advisories/mfsa2023-38/ Vendor Advisory ([email protected])
https://bugzilla.mozilla.org/show_bug.cgi?id=1839007 Issue Tracking, Permissions Required (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2023-34/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2023-36/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.mozilla.org/security/advisories/mfsa2023-38/ Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)