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CVE-2023-4577

Date: September 11, 2023

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.

Language: C++

Severity Score

Related Resources (6)

https://www.mozilla.org/security/advisories/mfsa2023-34/
https://www.mozilla.org/security/advisories/mfsa2023-36/
https://www.mozilla.org/security/advisories/mfsa2023-38/
https://nvd.nist.gov/vuln/detail/CVE-2023-4577
https://bugzilla.mozilla.org/show_bug.cgi?id=1847397
https://www.mend.io/vulnerability-database/CVE-2023-4577

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): REQUIRED
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): NONE
Availability (A): HIGH

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