CVE-2023-6207 — Use After Free in Mozilla Firefox

CWE-416 — Use After Free11 documents8 sources
Severity
8.8HIGHNVD
EPSS
0.5%
top 36.09%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird+1 more
Timeline
PublishedNov 21
Latest updateNov 27

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.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitability: 2.8 | Impact: 5.9

Affected Packages7 packages

▶CVEListV5mozilla/firefoxunspecified — 120
▶NVDmozilla/firefox< 120.0
▶CVEListV5mozilla/firefox_esrunspecified — 115.5.0
▶NVDmozilla/firefox_esr< 115.5.0
▶CVEListV5mozilla/thunderbirdunspecified — 115.5

Also affects: Debian Linux 10.0, 11.0, 12.0

🔴Vulnerability Details

3
OSV
CVE-2023-6207: Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115↗2023-11-21
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CVEList
CVE-2023-6207: Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox ESR < 115↗2023-11-21
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GHSA
GHSA-qvr4-hgxw-v9xj: Ownership mismanagement led to a use-after-free in ReadableByteStreams This vulnerability affects Firefox < 120, Firefox < 115↗2023-11-21
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📋Vendor Advisories

7
Ubuntu
Thunderbird vulnerabilities↗2023-11-27
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Ubuntu
Firefox vulnerabilities↗2023-11-23
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Red Hat
Mozilla: Use-after-free in ReadableByteStreamQueueEntry::Buffer↗2023-11-21
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Debian
CVE-2023-6207: firefox - Ownership mismanagement led to a use-after-free in ReadableByteStreams This vuln...↗2023
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Mozilla
Mozilla Foundation Security Advisory 2023-50: CVE-2023-6207↗
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CVE-2023-6207 — Use After Free in Mozilla Firefox | cvebase