Vulnerability Name:

CVE-2019-6596 (CCN-159382)

Assigned:2019-03-11
Published:2019-03-11
Updated:2020-08-24
Summary:In BIG-IP 14.0.0-14.0.0.2, 13.0.0-13.1.1.1, 12.1.0-12.1.3.6, 11.6.1-11.6.3.2, or 11.5.1-11.5.8, when processing fragmented ClientHello messages in a DTLS session TMM may corrupt memory eventually leading to a crash. Only systems offering DTLS connections via APM are impacted.
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-2019-6596

Source: BID
Type: Third Party Advisory
107403

Source: XF
Type: UNKNOWN
f5-cve20196596-dos(159382)

Source: CCN
Type: F5 Security Advisory K97241515
BIG-IP APM DTLS vulnerability CVE-2019-6596

Source: CONFIRM
Type: Vendor Advisory
https://support.f5.com/csp/article/K97241515

Vulnerable Configuration:Configuration 1:
  • cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 11.5.1 and <= 11.5.8)
  • OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 11.6.1 and <= 11.6.3)
  • OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 12.1.0 and <= 12.1.3)
  • OR cpe:/a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* (Version >= 13.0.0 and <= 13.1.1)
  • OR cpe:/a:f5:big-ip_access_policy_manager:14.0.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:f5:big-ip_access_policy_manager:13.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:12.1.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:12.1.3:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:11.5.1:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:11.6.3:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:14.0.0:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:13.1.1:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:11.6.1:*:*:*:*:*:*:*
  • OR cpe:/a:f5:big-ip_access_policy_manager:11.5.8:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    f5 big-ip access policy manager *
    f5 big-ip access policy manager *
    f5 big-ip access policy manager *
    f5 big-ip access policy manager *
    f5 big-ip access policy manager 14.0.0
    f5 big-ip access policy manager 13.0.0
    f5 big-ip access policy manager 12.1.0
    f5 big-ip access policy manager 12.1.3
    f5 big-ip access policy manager 11.5.1
    f5 big-ip access policy manager 11.6.3
    f5 big-ip access policy manager 14.0.0
    f5 big-ip access policy manager 13.1.1
    f5 big-ip access policy manager 11.6.1
    f5 big-ip access policy manager 11.5.8