CVE-2017-7803
UnknownEPSS 2.03%
Last modified
CVE-2017-7803 is a vulnerability of currently unknown severity. When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. EPSS estimates a 2.03% chance of exploitation in the next 30 days.
Description
When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.4 |
| Redhat | Enterprise Linux Server Eus | 7.4 |
| Redhat | Enterprise Linux Server Eus | 7.5 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Mozilla | Firefox | < 52.3.0 |
| Mozilla | Firefox | < 55.0 |
| Mozilla | Thunderbird | < 52.3.0 |
References
- http://www.securityfocus.com/bid/100234Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2456Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2534Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1377426Exploit, Issue Tracking, Patch
- https://security.gentoo.org/glsa/201803-14Third Party Advisory
- https://www.debian.org/security/2017/dsa-3928Third Party Advisory
- https://www.debian.org/security/2017/dsa-3968Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-19/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-20/Vendor Advisory
- http://www.securityfocus.com/bid/100234Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:2456Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2534Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1377426Exploit, Issue Tracking, Patch
- https://security.gentoo.org/glsa/201803-14Third Party Advisory
- https://www.debian.org/security/2017/dsa-3928Third Party Advisory
- https://www.debian.org/security/2017/dsa-3968Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-19/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-20/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-7803?
When a page's content security policy (CSP) header contains a "sandbox" directive, other directives are ignored. This results in the incorrect enforcement of CSP. This vulnerability affects Thunderbird < 52.3, Firefox ESR < 52.3, and Firefox < 55.
How severe is CVE-2017-7803?
Severity scoring for CVE-2017-7803 is pending analysis. The EPSS model estimates a 2.03% probability of exploitation in the next 30 days.
How do I fix CVE-2017-7803?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-7803?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST