CVE-2022-40960 — Use After Free in Mozilla Firefox

CWE-416 — Use After Free12 documents8 sources
Severity
6.5MEDIUMNVD
OSV5.5
EPSS
0.2%
top 63.20%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
Mozilla FirefoxMozilla Firefox ESRMozilla Thunderbird
Timeline
PublishedDec 22

Description

Concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This could lead to a use-after-free causing a potentially exploitable crash. This vulnerability affects Firefox ESR < 102.3, Thunderbird < 102.3, and Firefox < 105.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages8 packages

▶CVEListV5mozilla/firefoxunspecified — 105
▶NVDmozilla/firefox< 105.0
▶CVEListV5mozilla/firefox_esrunspecified — 102.3
▶NVDmozilla/firefox_esr< 102.3
▶CVEListV5mozilla/thunderbirdunspecified — 102.3

🔴Vulnerability Details

4
OSV
CVE-2022-40960: Concurrent use of the URL parser with non-UTF-8 data was not thread-safe↗2022-12-22
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GHSA
GHSA-w7vf-mp9x-925q: Concurrent use of the URL parser with non-UTF-8 data was not thread-safe↗2022-12-22
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CVEList
CVE-2022-40960: Concurrent use of the URL parser with non-UTF-8 data was not thread-safe↗2022-12-22
▶
OSV
thunderbird vulnerabilities↗2022-11-11
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📋Vendor Advisories

7
Ubuntu
Thunderbird vulnerabilities↗2022-11-11
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Ubuntu
Firefox vulnerabilities↗2022-09-30
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Red Hat
Mozilla: Data-race when parsing non-UTF-8 URLs in threads↗2022-09-20
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Debian
CVE-2022-40960: firefox - Concurrent use of the URL parser with non-UTF-8 data was not thread-safe. This c...↗2022
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Mozilla
Mozilla Foundation Security Advisory 2022-40: CVE-2022-40960↗
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CVE-2022-40960 — Use After Free in Mozilla Firefox | cvebase