CVE-2015-1788
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
7.3 High
AI Score
Confidence
High
0.567 Medium
EPSS
Percentile
97.7%
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.
Affected configurations
References
fortiguard.com/advisory/2015-07-09-cve-2015-1793-openssl-alternative-chains-certificate-forgery
fortiguard.com/advisory/openssl-vulnerabilities-june-2015
ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2015-008.txt.asc
kb.juniper.net/InfoCenter/index?page=content&id=JSA10694
lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
lists.opensuse.org/opensuse-security-announce/2015-06/msg00023.html
lists.opensuse.org/opensuse-security-announce/2015-06/msg00024.html
lists.opensuse.org/opensuse-security-announce/2015-06/msg00026.html
lists.opensuse.org/opensuse-security-announce/2015-07/msg00003.html
lists.opensuse.org/opensuse-security-announce/2015-07/msg00004.html
lists.opensuse.org/opensuse-security-announce/2015-07/msg00006.html
lists.opensuse.org/opensuse-security-announce/2015-07/msg00007.html
lists.opensuse.org/opensuse-security-announce/2015-07/msg00037.html
lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html
marc.info/?l=bugtraq&m=143880121627664&w=2
marc.info/?l=bugtraq&m=144050155601375&w=2
tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20150612-openssl
www-304.ibm.com/support/docview.wss?uid=swg21960041
www.debian.org/security/2015/dsa-3287
www.fortiguard.com/advisory/2015-06-11-fortinet-vulnerability-openssl-vulnerabilities-june-2015
www.fortiguard.com/advisory/openssl-vulnerabilities-june-2015
www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.html
www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
www.oracle.com/technetwork/topics/security/bulletinjul2015-2511963.html
www.oracle.com/technetwork/topics/security/cpujan2016-2367955.html
www.oracle.com/technetwork/topics/security/cpuoct2015-2367953.html
www.securityfocus.com/bid/75158
www.securityfocus.com/bid/91787
www.securitytracker.com/id/1032564
www.ubuntu.com/usn/USN-2639-1
bto.bluecoat.com/security-advisory/sa98
cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
github.com/openssl/openssl/commit/4924b37ee01f71ae19c94a8934b80eeb2f677932
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05045763
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05131044
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05184351
kc.mcafee.com/corporate/index?page=content&id=SB10122
openssl.org/news/secadv/20150611.txt
security.gentoo.org/glsa/201506-02
support.apple.com/kb/HT205031
support.citrix.com/article/CTX216642
www.openssl.org/news/secadv_20150611.txt
Related
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:N/A:P
7.3 High
AI Score
Confidence
High
0.567 Medium
EPSS
Percentile
97.7%