CVE-2016-6304

Description

Multiple memory leaks in t1_lib.c in OpenSSL before 1.0.1u, 1.0.2 before 1.0.2i, and 1.1.0 before 1.1.0a allow remote attackers to cause a denial of service (memory consumption) via large OCSP Status Request extensions.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 20.28% Top 5%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory gentoo.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory FreeBSD.org Vendor Advisory opensuse.org Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory ubuntu.com Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory debian.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory opensuse.org Vendor Advisory openssl.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://www.openssl.org/news/secadv/20160922.txt vendor advisory
https://www.tenable.com/security/tns-2016-20 third party advisory
http://www.splunk.com/view/SP-CAAAPUE third party advisory
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html third party advisory patch
http://rhn.redhat.com/errata/RHSA-2017-1659.html third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1658 third party advisory vendor advisory
http://rhn.redhat.com/errata/RHSA-2016-1940.html third party advisory vendor advisory
http://www.securityfocus.com/bid/93150 vdb entry third party advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html third party advisory
http://rhn.redhat.com/errata/RHSA-2016-2802.html third party advisory vendor advisory
https://security.gentoo.org/glsa/201612-16 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1801 third party advisory vendor advisory
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312 third party advisory
http://www.securitytracker.com/id/1036878 vdb entry third party advisory
http://www.splunk.com/view/SP-CAAAPSV third party advisory
https://access.redhat.com/errata/RHSA-2017:1413 third party advisory vendor advisory
http://www-01.ibm.com/support/docview.wss?uid=swg21995039 third party advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html third party advisory patch
https://nodejs.org/en/blog/vulnerability/september-2016-security-releases/ third party advisory
https://www.tenable.com/security/tns-2016-16 third party advisory
https://access.redhat.com/errata/RHSA-2017:2494 third party advisory vendor advisory
http://www.securitytracker.com/id/1037640 vdb entry third party advisory
https://www.tenable.com/security/tns-2016-21 third party advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10171 third party advisory
http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html third party advisory patch
https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=2c0d295e26306e15a92eb23a84a1802005c1c137
http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html third party advisory patch
https://access.redhat.com/errata/RHSA-2017:1414 third party advisory vendor advisory
http://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html third party advisory
https://bto.bluecoat.com/security-advisory/sa132 third party advisory
http://rhn.redhat.com/errata/RHSA-2017-1415.html third party advisory vendor advisory
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html third party advisory patch
https://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00013.html mailing list third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1802 third party advisory vendor advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759 third party advisory
https://access.redhat.com/errata/RHSA-2017:2493 third party advisory vendor advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10215 third party advisory
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html mailing list third party advisory vendor advisory
http://www.ubuntu.com/usn/USN-3087-1 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html mailing list third party advisory vendor advisory
http://seclists.org/fulldisclosure/2016/Oct/62 third party advisory mailing list
http://www.ubuntu.com/usn/USN-3087-2 third party advisory vendor advisory
http://seclists.org/fulldisclosure/2016/Dec/47 third party advisory mailing list
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html mailing list third party advisory vendor advisory
http://seclists.org/fulldisclosure/2017/Jul/31 third party advisory mailing list
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html mailing list third party advisory vendor advisory
http://www.debian.org/security/2016/dsa-3673 third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html mailing list third party advisory vendor advisory
http://packetstormsecurity.com/files/139091/OpenSSL-x509-Parsing-Double-Free-Invalid-Free.html vdb entry third party advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-11/msg00027.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-11/msg00021.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00021.html mailing list third party advisory vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html mailing list third party advisory vendor advisory
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en third party advisory
https://www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24 third party advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Frequently Asked Questions

What is the severity of CVE-2016-6304?
CVE-2016-6304 has been scored as a high severity vulnerability.
How to fix CVE-2016-6304?
To fix CVE-2016-6304, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-6304 being actively exploited in the wild?
It is possible that CVE-2016-6304 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~20% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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