cve/2015/CVE-2015-1788.md

CVE-2015-1788

Description

The BN_GF2m_mod_inv function in crypto/bn/bn_gf2m.c in OpenSSL before 0.9.8s, 1.0.0 before 1.0.0e, 1.0.1 before 1.0.1n, and 1.0.2 before 1.0.2b does not properly handle ECParameters structures in which the curve is over a malformed binary polynomial field, which allows remote attackers to cause a denial of service (infinite loop) via a session that uses an Elliptic Curve algorithm, as demonstrated by an attack against a server that supports client authentication.

POC

Reference

• http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
• http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
• http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
• http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
• http://www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
• http://www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
• http://www.securityfocus.com/bid/91787
• https://hackerone.com/reports/73241

Github

• https://github.com/ARPSyndicate/cvemon
• https://github.com/Live-Hack-CVE/CVE-2015-1788
• https://github.com/chnzzh/OpenSSL-CVE-lib
• https://github.com/mrash/afl-cve
• https://github.com/pazhanivel07/OpenSSL_1_0_1g_CVE-2015-1788