Resource exhaustion in F5 Big-ip_access_policy_manager
CVE-2019-11478
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to ca…
EPSS: 0.947 (99.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
Affected products
- F5 Big-ip_access_policy_manager — versions 15.0.0
- F5 Big-ip_advanced_firewall_manager — versions 15.0.0
- F5 Big-ip_analytics — versions 15.0.0
- F5 Big-ip_application_acceleration_manager — versions 15.0.0
- F5 Big-ip_application_security_manager — versions 15.0.0
- F5 Big-ip_domain_name_system — versions 15.0.0
- F5 Big-ip_edge_gateway — versions 15.0.0
- F5 Big-ip_fraud_protection_service — versions 15.0.0
- F5 Big-ip_global_traffic_manager — versions 15.0.0
- F5 Big-ip_link_controller — versions 15.0.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security@ubuntu.com (x_refsource_CERT-VN, third-party-advisory)
- security@ubuntu.com (x_refsource_REDHAT, vendor-advisory)
- security@ubuntu.com (x_refsource_REDHAT, vendor-advisory)
- security@ubuntu.com (mailing-list, x_refsource_MLIST)
- security@ubuntu.com (mailing-list, x_refsource_MLIST)
- security@ubuntu.com (mailing-list, x_refsource_MLIST)
- security@ubuntu.com (x_refsource_REDHAT, vendor-advisory)
- security@ubuntu.com (mailing-list, x_refsource_BUGTRAQ)
- security@ubuntu.com (mailing-list, x_refsource_MLIST)
- security@ubuntu.com (mailing-list, x_refsource_MLIST)
Frequently asked questions
- What is CVE-2019-11478?
- CVE-2019-11478 is a medium-severity vulnerability in F5 Big-ip_access_policy_manager, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 5.3/10. Published 2019-06-19.
- How severe is CVE-2019-11478?
- Medium severity. CVSS v3 base score is 5.3 out of 10.
- Is CVE-2019-11478 known to be exploited?
- 7 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.