CVE-2014-3511

MEDIUM

Description

The ssl23_get_client_hello function in s23_srvr.c in OpenSSL 1.0.1 before 1.0.1i allows man-in-the-middle attackers to force the use of TLS 1.0 by triggering ClientHello message fragmentation in communication between a client and server that both support later TLS versions, related to a "protocol downgrade" issue.

References

ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2014-008.txt.asc

http://aix.software.ibm.com/aix/efixes/security/openssl_advisory10.asc

http://linux.oracle.com/errata/ELSA-2014-1052.html

http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136470.html

http://lists.fedoraproject.org/pipermail/package-announce/2014-August/136473.html

http://lists.opensuse.org/opensuse-updates/2014-08/msg00036.html

http://marc.info/?l=bugtraq&m=142350350616251&w=2

http://marc.info/?l=bugtraq&m=142495837901899&w=2

http://marc.info/?l=bugtraq&m=142624590206005&w=2

http://marc.info/?l=bugtraq&m=142660345230545&w=2

http://marc.info/?l=bugtraq&m=142791032306609&w=2

http://marc.info/?l=bugtraq&m=143290437727362&w=2

http://marc.info/?l=bugtraq&m=143290522027658&w=2

http://rhn.redhat.com/errata/RHSA-2015-0126.html

http://rhn.redhat.com/errata/RHSA-2015-0197.html

http://secunia.com/advisories/58962

http://secunia.com/advisories/59700

http://secunia.com/advisories/59710

http://secunia.com/advisories/59756

http://secunia.com/advisories/59887

http://secunia.com/advisories/60022

http://secunia.com/advisories/60221

http://secunia.com/advisories/60377

http://secunia.com/advisories/60493

http://secunia.com/advisories/60684

http://secunia.com/advisories/60803

http://secunia.com/advisories/60810

http://secunia.com/advisories/60890

http://secunia.com/advisories/60917

http://secunia.com/advisories/60921

http://secunia.com/advisories/60938

http://secunia.com/advisories/61017

http://secunia.com/advisories/61043

http://secunia.com/advisories/61100

http://secunia.com/advisories/61139

http://secunia.com/advisories/61184

http://secunia.com/advisories/61775

http://secunia.com/advisories/61959

http://security.gentoo.org/glsa/glsa-201412-39.xml

http://support.f5.com/kb/en-us/solutions/public/15000/500/sol15564.html

http://www-01.ibm.com/support/docview.wss?uid=nas8N1020240

http://www-01.ibm.com/support/docview.wss?uid=swg21682293

http://www-01.ibm.com/support/docview.wss?uid=swg21683389

http://www-01.ibm.com/support/docview.wss?uid=swg21686997

http://www.arubanetworks.com/support/alerts/aid-08182014.txt

http://www.debian.org/security/2014/dsa-2998

http://www.huawei.com/en/security/psirt/security-bulletins/security-advisories/hw-372998.htm

http://www.securityfocus.com/bid/69079

http://www.securitytracker.com/id/1030693

http://www.splunk.com/view/SP-CAAANHS

http://www.tenable.com/security/tns-2014-06

https://bugzilla.redhat.com/show_bug.cgi?id=1127504

https://exchange.xforce.ibmcloud.com/vulnerabilities/95162

https://git.openssl.org/gitweb/?p=openssl.git;a=commit;h=280b1f1ad12131defcd986676a8fc9717aaa601b

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05150888

https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05158380

https://kc.mcafee.com/corporate/index?page=content&id=SB10084

https://lists.balabit.hu/pipermail/syslog-ng-announce/2014-September/000196.html

https://support.citrix.com/article/CTX216642

https://techzone.ergon.ch/CVE-2014-3511

https://www.freebsd.org/security/advisories/FreeBSD-SA-14:18.openssl.asc

https://www.openssl.org/news/secadv_20140806.txt

Details

Source: MITRE

Published: 2014-08-13

Updated: 2017-11-15

Risk Information

CVSS v2.0

Base Score: 4.3

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

Impact Score: 2.9

Exploitability Score: 8.6

Severity: MEDIUM