Vulnerability Description
The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allow a Cross-Site Scripting (XSS) attack to be launched from unsafe content. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server Aus | 7.4 |
| Redhat | Enterprise Linux Server Eus | 7.4 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Debian | Debian Linux | 7.0 |
| Mozilla | Firefox | < 52.4.0 |
| Mozilla | Thunderbird | < 52.4.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/101059Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039465Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2831Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2885Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1396320ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2017/11/msg00000.htmlMailing ListThird Party Advisory
- https://security.gentoo.org/glsa/201803-14Third Party Advisory
- https://www.debian.org/security/2017/dsa-3987Third Party Advisory
- https://www.debian.org/security/2017/dsa-4014Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-21/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-22/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-23/Vendor Advisory
- http://www.securityfocus.com/bid/101059Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1039465Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2831Third Party Advisory
FAQ
What is CVE-2017-7823?
CVE-2017-7823 is a vulnerability with a CVSS score of 5.4 (MEDIUM). The content security policy (CSP) "sandbox" directive did not create a unique origin for the document, causing it to behave as if the "allow-same-origin" keyword were always specified. This could allo...
How severe is CVE-2017-7823?
CVE-2017-7823 has been rated MEDIUM with a CVSS base score of 5.4/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7823?
Check the references section above for vendor advisories and patch information. Affected products include: Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus, Redhat Enterprise Linux Server Eus, Redhat Enterprise Linux Workstation.