CVE-2017-7781
MEDIUMFirefox < 55.0 - Man-in-the-Middle Shared Secret Computation Flaw via Elliptic Curve Point Addition
Title source: llmDescription
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.
References (4)
Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry
x_refsource_bid
http://www.securityfocus.com/bid/100383
Vendor Advisory x_refsource_confirm
https://www.mozilla.org/security/advisories/mfsa2017-18/
Third Party Advisory, VDB Entry vdb-entry
x_refsource_sectrack
http://www.securitytracker.com/id/1039124
Exploit, Issue Tracking, Third Party Advisory x_refsource_confirm
https://bugzilla.mozilla.org/show_bug.cgi?id=1352039
Scores
CVSS v3
5.9
EPSS
0.0091
EPSS Percentile
76.1%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Details
Status
published
Products (1)
mozilla/firefox
< 55.0
Published
Jun 11, 2018
Tracked Since
Feb 18, 2026