CVE-2016-2181
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.4 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.612 Medium
EPSS
Percentile
97.7%
The Anti-Replay feature in the DTLS implementation in OpenSSL before 1.1.0 mishandles early use of a new epoch number in conjunction with a large sequence number, which allows remote attackers to cause a denial of service (false-positive packet drops) via spoofed DTLS records, related to rec_layer_d1.c and ssl3_record.c.
References
kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html
lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html
lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html
lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html
lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html
lists.opensuse.org/opensuse-security-announce/2016-10/msg00011.html
lists.opensuse.org/opensuse-security-announce/2016-10/msg00012.html
lists.opensuse.org/opensuse-security-announce/2016-10/msg00029.html
lists.opensuse.org/opensuse-security-announce/2017-10/msg00010.html
lists.opensuse.org/opensuse-security-announce/2017-10/msg00011.html
lists.opensuse.org/opensuse-security-announce/2018-02/msg00032.html
rhn.redhat.com/errata/RHSA-2016-1940.html
seclists.org/fulldisclosure/2017/Jul/31
www-01.ibm.com/support/docview.wss?uid=swg21995039
www.debian.org/security/2016/dsa-3673
www.huawei.com/en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en
www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.html
www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html
www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.html
www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.html
www.securityfocus.com/bid/92982
www.securitytracker.com/id/1036690
www.splunk.com/view/SP-CAAAPSV
www.splunk.com/view/SP-CAAAPUE
www.ubuntu.com/usn/USN-3087-1
www.ubuntu.com/usn/USN-3087-2
bto.bluecoat.com/security-advisory/sa132
cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=1fb9fdc3027b27d8eb6a1e6a846435b070980770
kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312
kc.mcafee.com/corporate/index?page=content&id=SB10215
security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.asc
support.f5.com/csp/article/K59298921
www.arista.com/en/support/advisories-notices/security-advisories/1749-security-advisory-24
www.tenable.com/security/tns-2016-16
www.tenable.com/security/tns-2016-20
www.tenable.com/security/tns-2016-21
Related
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.4 High
AI Score
Confidence
High
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.612 Medium
EPSS
Percentile
97.7%