Description
Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Published: 2023-12-19
Score: 8.8 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-3697-1 firefox-esr security update
Debian DLA Debian DLA DLA-3698-1 thunderbird security update
Debian DSA Debian DSA DSA-5581-1 firefox-esr security update
Debian DSA Debian DSA DSA-5582-1 thunderbird security update
EUVD EUVD EUVD-2023-59062 Firefox was susceptible to a heap buffer overflow in `nsTextFragment` due to insufficient OOM handling. This vulnerability affects Firefox ESR < 115.6, Thunderbird < 115.6, and Firefox < 121.
Ubuntu USN Ubuntu USN USN-6562-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-6563-1 Thunderbird vulnerabilities
History

Wed, 07 May 2025 21:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Subscriptions

Debian Debian Linux
Mozilla Firefox Firefox Esr Thunderbird
Redhat Enterprise Linux Rhel Aus Rhel E4s Rhel Eus Rhel Tus
cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2025-05-07T20:25:21.051Z

Reserved: 2023-12-15T17:42:55.349Z

Link: CVE-2023-6858

cve-icon Vulnrichment

Updated: 2024-08-02T08:42:07.449Z

cve-icon NVD

Status : Modified

Published: 2023-12-19T14:15:07.420

Modified: 2025-05-07T21:15:59.953

Link: CVE-2023-6858

cve-icon Redhat

Severity : Moderate

Publid Date: 2023-12-19T00:00:00Z

Links: CVE-2023-6858 - Bugzilla

cve-icon OpenCVE Enrichment

No data.

Weaknesses