CVE-2023-4577

When UpdateRegExpStatics attempted to access initialStringHeap it could already have been garbage collected prior to entering the function, which could potentially have led to an exploitable crash. This vulnerability affects Firefox < 117, Firefox ESR < 115.2, and Thunderbird < 115.2.

References

Affected packages

Debian:13 / firefox-esr

Package

Name: firefox-esr
Purl: pkg:deb/debian/firefox-esr?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

115.2.0esr-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Debian:13 / thunderbird

Package

Name: thunderbird
Purl: pkg:deb/debian/thunderbird?arch=source

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1:115.2.0-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}