CVE-2023-6207

Mozilla: Use-after-free in ReadableByteStreamQueueEntry::Buffer

Published Nov 21, 2023 CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
Description
Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Debian DLA Debian DLA DLA-3661-1 firefox-esr security update
Debian DLA Debian DLA DLA-3674-1 thunderbird security update
Debian DSA Debian DSA DSA-5561-1 firefox-esr security update
Debian DSA Debian DSA DSA-5566-1 thunderbird security update
EUVD EUVD EUVD-2023-58454 Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115.5.0, and Thunderbird < 115.5.
Ubuntu USN Ubuntu USN USN-6509-1 Firefox vulnerabilities
Ubuntu USN Ubuntu USN USN-6515-1 Thunderbird vulnerabilities
History

No history.

Weaknesses

Sources

Status
PUBLISHED
Assigner
mozilla
Published
Updated
Feb 13, 2025, 5:26 PM
Reserved
Nov 20, 2023, 1:33 PM
Status
Modified
Published
Nov 21, 2023, 3:15 PM
Modified
Jun 17, 2026, 6:50 AM
Severity
Important
Public date
Nov 21, 2023, 12:00 AM