7.5high
CVE-2016-2181in critical feed
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…
Published 10 y ago · modified 4 mo ago · JSON
CVSS
7.5
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
22.6%
percentile 98%
Public exploits
0
none known
Summary
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.
Exploit prediction (EPSS)
22.63% probability of exploitation in the next 30 days, higher than 98% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| NVD | 3.0 | 7.5 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:N/A:P |
Classification
- Weakness
- CWE-189 Numeric Errors
- Technology feeds
- OpenSSL (RSS, critical only)
References
- securityfocus.com /bid/92982 · vdb-entry, x_transferred
- tenable.com /security/tns-2016-20 · x_transferred
- splunk.com /view/SP-CAAAPUE · x_transferred
- oracle.com /technetwork/security-advisory/cpujan2018-3236628.html · x_transferred
- rhn.redhat.com /errata/RHSA-2016-1940.html · vendor-advisory, x_transferred
- oracle.com /technetwork/topics/security/linuxbulletinoct2016-3090545.html · x_transferred
- kb.pulsesecure.net /articles/Pulse_Security_Advisories/SA40312 · x_transferred
- splunk.com /view/SP-CAAAPSV · x_transferred
- www-01.ibm.com /support/docview.wss?uid=swg21995039 · x_transferred
- oracle.com /technetwork/security-advisory/cpuoct2016-2881722.html · x_transferred
- tenable.com /security/tns-2016-16 · x_transferred
- tenable.com /security/tns-2016-21 · x_transferred
- securitytracker.com /id/1036690 · vdb-entry, x_transferred
- oracle.com /technetwork/security-advisory/cpuoct2017-3236626.html · x_transferred
- oracle.com /technetwork/security-advisory/cpuapr2018-3678067.html · x_transferred
- git.openssl.org /?p=openssl.git%3Ba=commit%3Bh=1fb9fdc3027b27d8eb6a1e6a846435b070980770 · x_transferred
- oracle.com /technetwork/topics/security/ovmbulletinoct2016-3090547.html · x_transferred
- bto.bluecoat.com /security-advisory/sa132 · x_transferred
- oracle.com /technetwork/security-advisory/cpujul2017-3236622.html · x_transferred
- security.freebsd.org /advisories/FreeBSD-SA-16:26.openssl.asc · vendor-advisory, x_transferred
- kb.juniper.net /InfoCenter/index?page=content&id=JSA10759 · x_transferred
- kc.mcafee.com /corporate/index?page=content&id=SB10215 · x_transferred
- lists.opensuse.org /opensuse-security-announce/2017-10/msg00011.html · vendor-advisory, x_transferred
- ubuntu.com /usn/USN-3087-1 · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-10/msg00012.html · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-10/msg00029.html · vendor-advisory, x_transferred
- ubuntu.com /usn/USN-3087-2 · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2017-10/msg00010.html · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-09/msg00031.html · vendor-advisory, x_transferred
- seclists.org /fulldisclosure/2017/Jul/31 · mailing-list, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-10/msg00005.html · vendor-advisory, x_transferred
- support.f5.com /csp/article/K59298921 · x_transferred
- debian.org /security/2016/dsa-3673 · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-09/msg00023.html · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2018-02/msg00032.html · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-09/msg00022.html · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-10/msg00011.html · vendor-advisory, x_transferred
- lists.opensuse.org /opensuse-security-announce/2016-09/msg00024.html · vendor-advisory, x_transferred
- huawei.com /en/psirt/security-advisories/huawei-sa-20170322-01-openssl-en · x_transferred
- arista.com /en/support/advisories-notices/security-advisories/1749-security-advisory-24 · x_transferred
- cert-portal.siemens.com /productcert/pdf/ssa-412672.pdf
Sources
- CVE List: CVE-2016-2181
- NVD: CVE-2016-2181
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