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High severity · published Sep 16, 2016
CVE-2016-2181
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…
7.5
CVSS
22.6%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)22.6% · higher than 98% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Oracle
6; 7 · source: NVD
OP
Openssl · Openssl
1.0.1; 1.0.1a; 1.0.1b; 1.0.1c; 1.0.1d; 1.0.1e; +24 more · source: NVD
Affected product
OP
Openssl
Openssl
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2181
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2181
Third Party Advisory
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00022.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00023.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00024.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-09/msg00031.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2016-10/msg00005.html
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