CVE-2016-6304
First published: Tue Sep 20 2016(Updated: )
A memory leak flaw was found in the way OpenSSL handled TLS status request extension data during session renegotiation. A remote attacker could cause a TLS server using OpenSSL to consume an excessive amount of memory and, possibly, exit unexpectedly after exhausting all available memory, if it enabled OCSP stapling support.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/jbcs-httpd24-httpd | <0:2.4.23-120.jbcs.el6 | 0:2.4.23-120.jbcs.el6 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2h-13.jbcs.el6 | 1:1.0.2h-13.jbcs.el6 |
| redhat/jbcs-httpd24-httpd | <0:2.4.23-120.jbcs.el7 | 0:2.4.23-120.jbcs.el7 |
| redhat/jbcs-httpd24-openssl | <1:1.0.2h-13.jbcs.el7 | 1:1.0.2h-13.jbcs.el7 |
| redhat/openssl | <0:1.0.1e-48.el6_8.3 | 0:1.0.1e-48.el6_8.3 |
| redhat/openssl | <0:1.0.0-20.el6_2.9 | 0:1.0.0-20.el6_2.9 |
| redhat/openssl | <0:1.0.0-27.el6_4.6 | 0:1.0.0-27.el6_4.6 |
| redhat/openssl | <0:1.0.1e-16.el6_5.17 | 0:1.0.1e-16.el6_5.17 |
| redhat/openssl | <0:1.0.1e-30.el6_6.13 | 0:1.0.1e-30.el6_6.13 |
| redhat/openssl | <0:1.0.1e-42.el6_7.6 | 0:1.0.1e-42.el6_7.6 |
| redhat/openssl | <1:1.0.1e-51.el7_2.7 | 1:1.0.1e-51.el7_2.7 |
| redhat/tomcat6 | <0:6.0.41-17_patch_04.ep6.el6 | 0:6.0.41-17_patch_04.ep6.el6 |
| redhat/tomcat7 | <0:7.0.54-25_patch_05.ep6.el6 | 0:7.0.54-25_patch_05.ep6.el6 |
| redhat/tomcat6 | <0:6.0.41-17_patch_04.ep6.el7 | 0:6.0.41-17_patch_04.ep6.el7 |
| redhat/tomcat7 | <0:7.0.54-25_patch_05.ep6.el7 | 0:7.0.54-25_patch_05.ep6.el7 |
| redhat/log4j-eap6 | <0:1.2.16-12.redhat_3.1.ep6.el6 | 0:1.2.16-12.redhat_3.1.ep6.el6 |
| redhat/tomcat7 | <0:7.0.70-22.ep7.el6 | 0:7.0.70-22.ep7.el6 |
| redhat/tomcat8 | <0:8.0.36-24.ep7.el6 | 0:8.0.36-24.ep7.el6 |
| redhat/tomcat-native | <0:1.2.8-10.redhat_10.ep7.el6 | 0:1.2.8-10.redhat_10.ep7.el6 |
| redhat/log4j-eap6 | <0:1.2.16-12.redhat_3.1.ep6.el7 | 0:1.2.16-12.redhat_3.1.ep6.el7 |
| redhat/tomcat7 | <0:7.0.70-22.ep7.el7 | 0:7.0.70-22.ep7.el7 |
| redhat/tomcat8 | <0:8.0.36-24.ep7.el7 | 0:8.0.36-24.ep7.el7 |
| redhat/tomcat-native | <0:1.2.8-10.redhat_10.ep7.el7 | 0:1.2.8-10.redhat_10.ep7.el7 |
| redhat/openssl | <1.0.1 | 1.0.1 |
| redhat/openssl | <1.0.2 | 1.0.2 |
| redhat/openssl | <1.1.0 | 1.1.0 |
| Advantech Spectre Rt Ert351 Firmware | ||
| debian/openssl | 1.1.1w-0+deb11u1 1.1.1w-0+deb11u2 3.0.15-1~deb12u1 3.0.14-1~deb12u2 3.4.1-1 | |
| OpenSSL | =1.0.2 | |
| OpenSSL | =1.0.2-beta1 | |
| OpenSSL | =1.0.2-beta2 | |
| OpenSSL | =1.0.2-beta3 | |
| OpenSSL | =1.0.2a | |
| OpenSSL | =1.0.2b | |
| OpenSSL | =1.0.2c | |
| OpenSSL | =1.0.2d | |
| OpenSSL | =1.0.2e | |
| OpenSSL | =1.0.2f | |
| OpenSSL | =1.0.2h | |
| OpenSSL | =1.1.0 | |
| OpenSSL | =1.0.1 | |
| OpenSSL | =1.0.1-beta1 | |
| OpenSSL | =1.0.1-beta2 | |
| OpenSSL | =1.0.1-beta3 | |
| OpenSSL | =1.0.1a | |
| OpenSSL | =1.0.1b | |
| OpenSSL | =1.0.1c | |
| OpenSSL | =1.0.1d | |
| OpenSSL | =1.0.1e | |
| OpenSSL | =1.0.1f | |
| OpenSSL | =1.0.1g | |
| OpenSSL | =1.0.1h | |
| OpenSSL | =1.0.1i | |
| OpenSSL | =1.0.1j | |
| OpenSSL | =1.0.1k | |
| OpenSSL | =1.0.1l | |
| OpenSSL | =1.0.1m | |
| OpenSSL | =1.0.1n | |
| OpenSSL | =1.0.1o | |
| OpenSSL | =1.0.1p | |
| OpenSSL | =1.0.1q | |
| OpenSSL | =1.0.1r | |
| OpenSSL | =1.0.1s | |
| OpenSSL | =1.0.1t | |
| Node.js | >=0.10.0<0.10.47 | |
| Node.js | >=0.12.0<0.12.16 | |
| Node.js | >=4.0.0<4.6.0 | |
| Node.js | >=6.0.0<6.7.0 | |
| SUSE Linux Enterprise Module for Web Scripting | =12.0 |
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2016-6304 https://nvd.nist.gov/vuln/detail/CVE-2016-6304 https://www.openssl.org/news/secadv/20160922.txt
- https://bugzilla.redhat.com/show_bug.cgi?id=1377600
- https://access.redhat.com/errata/RHSA-2017:1414
- https://access.redhat.com/errata/RHSA-2017:1413
- https://access.redhat.com/errata/RHSA-2016:1940
- https://access.redhat.com/errata/RHSA-2016:2802
- https://access.redhat.com/errata/RHSA-2017:1415
- https://access.redhat.com/errata/RHSA-2017:1659
- https://access.redhat.com/errata/RHSA-2017:1658
- https://access.redhat.com/errata/RHSA-2017:2493
- https://access.redhat.com/errata/RHSA-2017:2494
- https://access.redhat.com/errata/RHSA-2017:1802
- https://access.redhat.com/errata/RHSA-2017:1801
- https://access.redhat.com/security/cve/CVE-2016-6304
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html
- http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html
- http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html
- http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html
- http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html
- http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html
- http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html
- http://lists.opensuse.org/opensuse-security-announce/2016-11/msg00021.html
- http://lists.opensuse.org/opensuse-security-announce/2016-11/msg00027.html
- http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html
- http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html
- http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html
- http://packetstormsecurity.com/files/139091/OpenSSL-x509-Parsing-Double-Free-Invalid-Free.html
- http://rhn.redhat.com/errata/RHSA-2016-1940.html
- http://rhn.redhat.com/errata/RHSA-2016-2802.html
- http://rhn.redhat.com/errata/RHSA-2017-1415.html
- http://rhn.redhat.com/errata/RHSA-2017-1659.html
- http://seclists.org/fulldisclosure/2016/Dec/47
- http://seclists.org/fulldisclosure/2016/Oct/62
- http://seclists.org/fulldisclosure/2017/Jul/31
- http://www-01.ibm.com/support/docview.wss?uid=swg21995039
- http://www.debian.org/security/2016/dsa-3673
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en
- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.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/linuxbulletinoct2016-3090545.html
- http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
- http://www.securityfocus.com/bid/93150
- http://www.securitytracker.com/id/1036878
- http://www.securitytracker.com/id/1037640
- http://www.splunk.com/view/SP-CAAAPSV
- http://www.splunk.com/view/SP-CAAAPUE
- http://www.ubuntu.com/usn/USN-3087-1
- http://www.ubuntu.com/usn/USN-3087-2
- https://bto.bluecoat.com/security-advisory/sa132
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://git.openssl.org/?p=openssl.git;a=commit;h=2c0d295e26306e15a92eb23a84a1802005c1c137
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
- https://kc.mcafee.com/corporate/index?page=content&id=SB10171
- https://kc.mcafee.com/corporate/index?page=content&id=SB10215
- https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/
- https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc
- https://security.gentoo.org/glsa/201612-16
- https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24
- https://www.openssl.org/news/secadv/20160922.txt
- https://www.tenable.com/security/tns-2016-16
- https://www.tenable.com/security/tns-2016-20
- https://www.tenable.com/security/tns-2016-21
- http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
- https://kc.mcafee.com/corporate/index?page=content&id=SB10171
- https://kc.mcafee.com/corporate/index?page=content&id=SB10215
- https://launchpad.net/bugs/cve/CVE-2016-6304
- https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=2c0d295e26306e15a92eb23a84a1802005c1c137
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1202766&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1202766&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1202768&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1202768&action=edit
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1377600#c0
- https://rt.openssl.org/Ticket/Display.html?id=3178&user=guest&pass=guest
- https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=eb85ee9a8867b605cd7fb427869d0e50caa80a3f
- http://httpd.apache.org/docs/2.4/mod/mod_ssl.html#sslusestapling
- http://nginx.org/en/docs/http/ngx_http_ssl_module.html#ssl_stapling
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1203520&action=diff
- https://bugzilla.redhat.com/show_bug.cgi/attachment.cgi?id=1203520&action=edit
- https://git.openssl.org/?p=openssl.git;a=commitdiff;h=2c0d295e26306e15a92eb23a84a1802005c1c137
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1378409
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1378408
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1378410
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1378411
- http://security.360.cn/cve/CVE-2016-6304/
- https://rhn.redhat.com/errata/RHSA-2016-1940.html
- https://rhn.redhat.com/errata/RHSA-2016-2802.html
- https://www.cisa.gov/news-events/ics-advisories/icsa-21-054-03 (Advisory)
- https://security-tracker.debian.org/tracker/CVE-2016-6304
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-6304
- https://nvd.nist.gov/vuln/detail/CVE-2016-6304
- https://ubuntu.com/security/CVE-2016-6304
Parent vulnerabilities
(Appears in the following advisories)
Frequently Asked Questions
What is the severity of CVE-2016-6304?
CVE-2016-6304 has a medium severity rating due to the potential for a memory leak that can be exploited by remote attackers.
How do I fix CVE-2016-6304?
To fix CVE-2016-6304, upgrade to the patched versions of OpenSSL or the affected software as specified in the latest security advisories.
Which software is affected by CVE-2016-6304?
CVE-2016-6304 affects multiple versions of OpenSSL and related packages in Red Hat's JBoss and Tomcat, among others.
What causes the vulnerability in CVE-2016-6304?
CVE-2016-6304 is caused by a memory leak in OpenSSL's handling of TLS status request extension data during session renegotiation.
Can CVE-2016-6304 lead to denial of service?
Yes, CVE-2016-6304 can lead to denial of service as it allows an attacker to exhaust server memory.
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