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.

Score

CVSS 3.0 5.9 Medium

Status

Modified - security@mozilla.org

Published

2018-06-11

Last modified

2024-08-05

Affected products

• Firefox (Mozilla)

References

• http://www.securityfocus.com/bid/100383
• http://www.securitytracker.com/id/1039124
• https://bugzilla.mozilla.org/show_bug.cgi?id=1352039
• https://www.mozilla.org/security/advisories/mfsa2017-18/