Medium severity · published Dec 22, 2022
CVE-2022-40960
Concurrent use of the URL parser with non-UTF-8 data was not thread-safe
6.5
CVSS
1.1%
EPSS
No
On KEV
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:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 65% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 105.0 · source: NVD
FE
Firefox Esr · Mozilla
before 102.3 · source: NVD
TH
Thunderbird · Mozilla
before 102.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-40960
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-40960
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1787633
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-40/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-41/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2022-42/
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