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
0.323 Low
EPSS
Percentile
96.6%
The DTLS implementation in OpenSSL before 1.1.0 does not properly restrict the lifetime of queue entries associated with unused out-of-order messages, which allows remote attackers to cause a denial of service (memory consumption) by maintaining many crafted DTLS sessions simultaneously, related to d1_lib.c, statem_dtls.c, statem_lib.c, and statem_srvr.c. (CVE-2016-2179)
Impact
An attacker can send a fragmented, incomplete message followed by a ‘retransmission’ message. In this case, the system accepts the ‘retransmission’ message but the queue retains the original fragments, which consumes system resources. By repeating this process many times, the attacker can cause resource exhaustion.
CPE | Name | Operator | Version |
---|---|---|---|
big-ip afm | eq | 11.4.0 | |
big-ip afm | eq | 11.4.1 | |
big-ip afm | eq | 11.5.0 | |
big-ip afm | eq | 11.5.1 | |
big-ip afm | eq | 11.5.2 | |
big-ip afm | eq | 11.5.3 | |
big-ip afm | eq | 11.5.4 | |
big-ip afm | eq | 11.6.0 | |
big-ip afm | eq | 11.6.1 | |
big-ip afm | eq | 12.0.0 |
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
0.323 Low
EPSS
Percentile
96.6%