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.
Source: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-1788
Reference (s):
- APPLE:APPLE-SA-2015-08-13-2
- URL: http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
- BID:75158
- URL: http://www.securityfocus.com/bid/75158
- BID:91787