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CVE-2017-7781

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Date: June 11, 2018

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.

Language: Unix

Severity Score

Related Resources (7)

https://bugzilla.mozilla.org/show_bug.cgi?id=1352039
https://access.redhat.com/security/cve/CVE-2017-7781
https://nvd.nist.gov/vuln/detail/CVE-2017-7781
http://www.securitytracker.com/id/1039124
http://www.securityfocus.com/bid/100383
https://www.mozilla.org/security/advisories/mfsa2017-18/
https://www.mend.io/vulnerability-database/CVE-2017-7781

Severity Score

Weakness Type (CWE)

Insufficient Information

NVD-CWE-noinfo

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): HIGH
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): NONE
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): NONE
Availability (A): NONE
Additional information:

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