CVE-2017-7781

An error occurs in the elliptic curve point addition algorithm that uses mixed Jacobian-affine coordinates where it can yield a result "POINT_AT_INFINITY" when it should not. A man-in-the-middle attacker could use this to interfere with a connection, resulting in an attacked party computing an incorrect shared secret. This vulnerability affects Firefox < 55.

• http://www.securityfocus.com/bid/100383Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1352039Exploit, Issue Tracking, Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-18/Vendor Advisory
• http://www.securityfocus.com/bid/100383Third Party Advisory, VDB Entry
• http://www.securitytracker.com/id/1039124Third Party Advisory, VDB Entry
• https://bugzilla.mozilla.org/show_bug.cgi?id=1352039Exploit, Issue Tracking, Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2017-18/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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