CVE-2023-23602
First published: Tue Jan 17 2023(Updated: )
A mishandled security check when creating a WebSocket in a WebWorker caused the Content Security Policy connect-src header to be ignored. This could lead to connections to restricted origins from inside WebWorkers.
Credit: security@mozilla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mozilla Firefox ESR | <102.7 | 102.7 |
| <109 | 109 | |
| <102.7 | 102.7 | |
| <102.7 | 102.7 | |
| Mozilla Firefox | <109.0 | |
| Mozilla Firefox ESR | <102.7 | |
| Mozilla Thunderbird | <102.7 | |
| debian/firefox | 118.0.2-1 | |
| debian/firefox-esr | <=91.12.0esr-1~deb10u1 | 115.3.1esr-1~deb10u1 102.15.0esr-1~deb11u1 115.3.1esr-1~deb11u1 102.15.1esr-1~deb12u1 115.3.0esr-1~deb12u1 115.3.0esr-1 |
| debian/thunderbird | <=1:91.12.0-1~deb10u1 | 1:115.3.1-1~deb10u1 1:102.13.1-1~deb11u1 1:115.3.1-1~deb11u1 1:102.15.1-1~deb12u1 1:115.3.1-1~deb12u1 1:115.3.1-1 |
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Reference Links
- https://bugzilla.mozilla.org/show_bug.cgi?id=1800890
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-02/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-01/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-03/
- https://www.mozilla.org/security/advisories/mfsa2023-01/
- https://www.mozilla.org/security/advisories/mfsa2023-02/
- https://www.mozilla.org/security/advisories/mfsa2023-03/
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-01/#CVE-2023-23602
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-02/#CVE-2023-23602
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-03/#CVE-2023-23602
- https://security-tracker.debian.org/tracker/CVE-2023-23602
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is CVE-2023-23602?
CVE-2023-23602 is a vulnerability that allows connections to restricted origins from inside WebWorkers due to a mishandled security check when creating a WebSocket.
Which software products are affected by CVE-2023-23602?
Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102 are affected by CVE-2023-23602.
What is the severity of CVE-2023-23602?
CVE-2023-23602 has a severity level of medium (6.5).
How can I fix CVE-2023-23602?
To fix CVE-2023-23602, update Firefox to version 109 or later, Thunderbird to version 102.7 or later, or Firefox ESR to version 102 or later.
Where can I find more information about CVE-2023-23602?
You can find more information about CVE-2023-23602 on the Mozilla website: [mfsa2023-01](https://www.mozilla.org/security/advisories/mfsa2023-01/), [mfsa2023-03](https://www.mozilla.org/security/advisories/mfsa2023-03/), [mfsa2023-02](https://www.mozilla.org/security/advisories/mfsa2023-02/).
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