CVE & CISA-KEV CatalogNVD
CVE-2016-6304
HIGHEPSS 99th pctl7.5
CVSS v3
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.
CVSS v3 Vector
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityNone
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Exploit Intelligence
63.03%probability of exploitation in 30 days
99thpercentile
Very high risk: more likely to be exploited than 99% of all known CVEs.
References
- 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://access.redhat.com/errata/RHSA-2017:1413
- https://access.redhat.com/errata/RHSA-2017:1414
- https://access.redhat.com/errata/RHSA-2017:1658
- https://access.redhat.com/errata/RHSA-2017:1801
- https://access.redhat.com/errata/RHSA-2017:1802
- https://access.redhat.com/errata/RHSA-2017:2493
- https://access.redhat.com/errata/RHSA-2017:2494
- https://bto.bluecoat.com/security-advisory/sa132
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-05-06.