CVE-2023-23603
First published: Tue Jan 17 2023(Updated: )
Regular expressions used to filter out forbidden properties and values from style directives in calls to <code>console.log</code> weren't accounting for external URLs. Data could then be potentially exfiltrated from the browser. This vulnerability affects Firefox < 109, Thunderbird < 102.7, and Firefox ESR < 102.7.
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=1800832
- 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-2023-23603
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-02/#CVE-2023-23603
- https://www.mozilla.org/en-US/security/advisories/mfsa2023-03/#CVE-2023-23603
- https://security-tracker.debian.org/tracker/CVE-2023-23603
Peer vulnerabilities
(Found alongside the following vulnerabilities)
Frequently Asked Questions
What is the vulnerability ID?
The vulnerability ID is CVE-2023-23603.
What is the severity of CVE-2023-23603?
The severity of CVE-2023-23603 is medium.
Which software versions are affected by CVE-2023-23603?
Firefox versions < 109, Thunderbird versions < 102.7, and Firefox ESR versions < 102.7 are affected.
How does CVE-2023-23603 affect the browser?
CVE-2023-23603 allows potential exfiltration of data from the browser.
Where can I find more information about CVE-2023-23603?
You can find more information about CVE-2023-23603 in the Mozilla Security Advisories: [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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