Vulnerability Description
A use-after-free vulnerability occurs when redirecting focus handling which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Debian | Debian Linux | 8.0 |
| Mozilla | Firefox | < 45.9.0 |
| Mozilla | Thunderbird | < 52.1.0 |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/97940Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038320Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1201Third Party Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1349946ExploitIssue Tracking
- https://www.debian.org/security/2017/dsa-3831Third Party Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-10/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-11/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-12/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-13/Vendor Advisory
- http://www.securityfocus.com/bid/97940Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038320Third Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:1104Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1106Third Party Advisory
FAQ
What is CVE-2017-5434?
CVE-2017-5434 is a vulnerability with a CVSS score of 9.8 (CRITICAL). A use-after-free vulnerability occurs when redirecting focus handling which results in a potentially exploitable crash. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR <...
How severe is CVE-2017-5434?
CVE-2017-5434 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-5434?
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 Workstation, Debian Debian Linux, Mozilla Firefox.