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CVE-2017-7781 An error occurs in the elliptic curve point addition algorithm that uses mixed Jacobian-affine coordinates where it…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Firefox 55 earliest → < 55 55

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