CVE-2015-1788

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.

Score

CVSS 2.0 4.3 Medium

Status

Modified - secalert@redhat.com

Published

2015-06-12

Last modified

2024-08-06

Weaknesses

CWE-399

Affected products

• Openssl (Openssl)

References

• http://fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
• http://fortiguard.com/advisory/openssl-vulnerabilities-june-2015
• http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
• http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10694
• http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
• http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html
• http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html
• http://lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00003.html
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00007.html
• http://lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html
• http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
• http://marc.info/?l=bugtraq&m=143880121627664&w=2
• http://marc.info/?l=bugtraq&m=144050155601375&w=2
• http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150612-openssl
• http://www-304.ibm.com/support/docview.wss?uid=swg21960041
• http://www.debian.org/security/2015/dsa-3287
• http://www.fortiguard.com/advisory/2015-06-11-fortinet-vulnerability-openssl-vulnerabilities-june-2015
• http://www.fortiguard.com/advisory/openssl-vulnerabilities-june-2015
• 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/bulletinjul2015-2511963.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/75158
• http://www.securityfocus.com/bid/91787