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.

CVSS v3.0

5.9 MEDIUMCVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS v2.0

4.3 MEDIUMAV:N/AC:M/Au:N/C:P/I:N/A:N

EPSS

2.72% chance of exploitation in the next 30 days, 85th percentile

Published

2018-06-11

Updated

2024-08-05

Proof-of-concept exploits (1)

• https://bugzilla.mozilla.org/show_bug.cgi?id=1352039

References

• CVE Record
• NVD entry

Related

• CVE-2017-7760
• CVE-2017-7783
• CVE-2017-7759
• CVE-2017-7788
• CVE-2017-7758
• CVE-2017-7800