CVE-2018-5168
UnknownEPSS 2.38%
Last modified
CVE-2018-5168 is a vulnerability of currently unknown severity. Sites can bypass security checks on permissions to install lightweight themes by manipulating the "baseURI" property of the theme element. This could allow a malicious site to install a theme without user interaction which could contain offensive or embarrassing images. EPSS estimates a 2.38% chance of exploitation in the next 30 days.
Description
Sites can bypass security checks on permissions to install lightweight themes by manipulating the "baseURI" property of the theme element. This could allow a malicious site to install a theme without user interaction which could contain offensive or embarrassing images. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
Metrics
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Debian | Debian Linux | 7.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
| Mozilla | Firefox | < 52.8.0 |
| Mozilla | Firefox | < 60.0 |
| Mozilla | Thunderbird | < 52.8.0 |
| Mozilla | Thunderbird Esr | < 52.8.0 |
| Canonical | Ubuntu Linux | 14.04 |
| Canonical | Ubuntu Linux | 16.04 |
| Canonical | Ubuntu Linux | 17.10 |
| Canonical | Ubuntu Linux | 18.04 |
| 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 | 7.6 |
| Redhat | Enterprise Linux Server Eus | 7.5 |
| Redhat | Enterprise Linux Server Eus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
References
- http://www.securityfocus.com/bid/104136Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040896Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1414Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1415Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1725Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1726Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1449548Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00007.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3645-1/Third Party Advisory
- https://usn.ubuntu.com/3660-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4199Third Party Advisory
- https://www.debian.org/security/2018/dsa-4209Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-11/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-12/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-13/Vendor Advisory
- http://www.securityfocus.com/bid/104136Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1040896Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2018:1414Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1415Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1725Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1726Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1449548Issue Tracking, Permissions Required, Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00007.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/05/msg00013.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://usn.ubuntu.com/3645-1/Third Party Advisory
- https://usn.ubuntu.com/3660-1/Third Party Advisory
- https://www.debian.org/security/2018/dsa-4199Third Party Advisory
- https://www.debian.org/security/2018/dsa-4209Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-11/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-12/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2018-13/Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2018-5168?
Sites can bypass security checks on permissions to install lightweight themes by manipulating the "baseURI" property of the theme element. This could allow a malicious site to install a theme without user interaction which could contain offensive or embarrassing images. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.
How severe is CVE-2018-5168?
Severity scoring for CVE-2018-5168 is pending analysis. The EPSS model estimates a 2.38% probability of exploitation in the next 30 days.
How do I fix CVE-2018-5168?
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-2018-5168?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST