Vulnerability Description
An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. 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 |
|---|---|---|
| Debian | Debian Linux | 9.0 |
| Redhat | Enterprise Linux | 6.0 |
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server Aus | 7.3 |
| Redhat | Enterprise Linux Server Eus | 7.3 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| 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=1343552ExploitIssue TrackingVendor Advisory
- https://www.debian.org/security/2017/dsa-3831Third Party Advisory
- https://www.exploit-db.com/exploits/42071/ExploitThird Party AdvisoryVDB Entry
- 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
FAQ
What is CVE-2017-5447?
CVE-2017-5447 is a vulnerability with a CVSS score of 9.1 (CRITICAL). An out-of-bounds read during the processing of glyph widths during text layout. This results in a potentially exploitable crash and could allow an attacker to read otherwise inaccessible memory. This ...
How severe is CVE-2017-5447?
CVE-2017-5447 has been rated CRITICAL with a CVSS base score of 9.1/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2017-5447?
Check the references section above for vendor advisories and patch information. Affected products include: Debian Debian Linux, Redhat Enterprise Linux, Redhat Enterprise Linux Desktop, Redhat Enterprise Linux Server, Redhat Enterprise Linux Server Aus.