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VULNERABILITIES

CVE-2023-4577 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://bugzilla.mozilla.org/show_bug.cgi?id=1847397 CVEIssue TrackingPermissions Required
https://www.mozilla.org/security/advisories/mfsa2023-34/ CVEVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-36/ CVEVendor Advisory
https://www.mozilla.org/security/advisories/mfsa2023-38/ CVEVendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1847397 [email protected]Issue TrackingPermissions Required

see all 8 references

Weakness Enumeration

CWE-IDCWE NameSource
NVD-CWE-noinfoInsufficient Information to Classify Weakness[email protected]

Affected Products

ProductVersions
mozilla firefox
< 117.0

CPE

  • cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
mozilla firefox esr
< 115.2

CPE

  • cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
mozilla thunderbird
< 115.2

CPE

  • cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

5 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2023-4577
NVD Published Date:
Sep 11, 2023
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2023-4577 Details - Not Deferred