CVE-2015-3197

MEDIUM

Description

ssl/s2_srvr.c in OpenSSL 1.0.1 before 1.0.1r and 1.0.2 before 1.0.2f does not prevent use of disabled ciphers, which makes it easier for man-in-the-middle attackers to defeat cryptographic protection mechanisms by performing computations on SSLv2 traffic, related to the get_client_master_key and get_client_hello functions.

References

http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759

http://lists.fedoraproject.org/pipermail/package-announce/2016-January/176373.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00001.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00002.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00003.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00004.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00006.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00009.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00010.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00011.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00012.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00017.html

http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00025.html

http://lists.opensuse.org/opensuse-security-announce/2016-04/msg00038.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00015.html

http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00017.html

http://www.openssl.org/news/secadv/20160128.txt

http://www.oracle.com/technetwork/security-advisory/cpuapr2016v3-2985753.html

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/bulletinjan2016-2867206.html

http://www.oracle.com/technetwork/topics/security/linuxbulletinjan2016-2867209.html

http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.html

http://www.securityfocus.com/bid/82237

http://www.securityfocus.com/bid/91787

http://www.securitytracker.com/id/1034849

https://git.openssl.org/?p=openssl.git;a=commit;h=d81a1600588b726c2bdccda7efad3cc7a87d6245

https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03724en_us

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390893

https://security.FreeBSD.org/advisories/FreeBSD-SA-16:11.openssl.asc

https://security.gentoo.org/glsa/201601-05

https://www.kb.cert.org/vuls/id/257823

Details

Source: MITRE

Published: 2016-02-15

Updated: 2017-11-21

Type: CWE-310

Risk Information

CVSS v2.0

Base Score: 4.3

Vector: (AV:N/AC:M/Au:N/C:P/I:N/A:N)

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM

CVSS v3.0

Base Score: 5.9

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 2.2

Severity: MEDIUM