Vulnerability Name:

CVE-2021-22996 (CCN-199216)

Assigned:2021-03-10
Published:2021-03-10
Updated:2021-04-06
Summary:On all 7.x versions (fixed in 8.0.0), when set up for auto failover, a BIG-IQ Data Collection Device (DCD) cluster member that receives an undisclosed message may cause the corosync process to abort. This behavior may lead to a denial-of-service (DoS) and impact the stability of a BIG-IQ high availability (HA) cluster.
Note: Software versions which have reached End of Software Development (EoSD) are not evaluated.
CVSS v3 Severity:7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-noinfo
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-22996

Source: XF
Type: UNKNOWN
f5-cve202122996-dos(199216)

Source: CCN
Type: F5 Security Advisory K16352404
BIG-IQ DCD vulnerability CVE-2021-22996

Source: MISC
Type: Vendor Advisory
https://support.f5.com/csp/article/K16352404

Vulnerable Configuration:Configuration 1:
  • cpe:/a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* (Version >= 7.0.0 and < 8.0.0)

    • Configuration CCN 1:
  • cpe:/a:f5:big-iq_centralized_management:7.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-iq_centralized_management:7.1.0:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    f5 big-iq centralized management *
    f5 big-iq centralized management 7.0.0
    f5 big-iq centralized management 7.1.0