CVE-2017-5383

URLs containing certain unicode glyphs for alternative hyphens and quotes do not properly trigger punycode display, allowing for domain name spoofing attacks in the location bar. This vulnerability affects Thunderbird < 45.7, Firefox ESR < 45.7, and Firefox < 51.

• CWE-20

• http://rhn.redhat.com/errata/RHSA-2017-0190.htmlThird Party Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0238.htmlThird Party Advisory
• http://www.securityfocus.com/bid/95769Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037693Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1323338Issue Tracking, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1324716Issue Tracking, Vendor Advisory
• https://security.gentoo.org/glsa/201702-13Third Party Advisory
• https://security.gentoo.org/glsa/201702-22Third Party Advisory
• https://www.debian.org/security/2017/dsa-3771Third Party Advisory
• https://www.debian.org/security/2017/dsa-3832Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-01/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-02/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-03/Vendor Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0190.htmlThird Party Advisory
• http://rhn.redhat.com/errata/RHSA-2017-0238.htmlThird Party Advisory
• http://www.securityfocus.com/bid/95769Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1037693Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1323338Issue Tracking, Vendor Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1324716Issue Tracking, Vendor Advisory
• https://security.gentoo.org/glsa/201702-13Third Party Advisory
• https://security.gentoo.org/glsa/201702-22Third Party Advisory
• https://www.debian.org/security/2017/dsa-3771Third Party Advisory
• https://www.debian.org/security/2017/dsa-3832Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-01/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-02/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-03/Vendor Advisory

Published

Jun 11, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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