CVE-2019-11479

CVSS V2 Medium 5 CVSS V3 High 7.5
Description
Jonathan Looney discovered that the Linux kernel default MSS is hard-coded to 48 bytes. This allows a remote peer to fragment TCP resend queues significantly more than if a larger MSS were enforced. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commits 967c05aee439e6e5d7d805e195b3a20ef5c433d6 and 5f3e2bf008c2221478101ee72f5cb4654b9fc363.
Overview
  • CVE ID
  • CVE-2019-11479
  • Assigner
  • security@ubuntu.com
  • Vulnerability Status
  • Modified
  • Published Version
  • 2019-06-19T00:15:12
  • Last Modified Date
  • 2020-10-20T22:15:29
Weakness Enumerations
CWE URL
CWE-770 http://cwe.mitre.org/data/definitions/770.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
AND
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.4 4.4.182
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.9 4.9.182
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.14 4.14.127
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 4.19 4.19.52
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* 1 OR 5.1 5.1.11
AND
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 11.5.2 11.6.5.1
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 12.1.0 12.1.5.1
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 13.1.0 13.1.3.2
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 14.0.0 14.0.1.1
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 14.1.2 14.1.2.1
cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* 1 OR 15.0.0 15.0.1.1
AND
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* 1 OR
AND
cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* 1 OR 5.1.0 5.4.0
cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* 1 OR 6.0.0 6.1.0
cpe:2.3:a:f5:enterprise_manager:3.1.1:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:f5:iworkflow:2.3.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:f5:traffix_sdc:*:*:*:*:*:*:*:* 1 OR 5.0.0 5.1.0
AND
cpe:2.3:a:redhat:virtualization_host:4.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* 0 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:L/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • LOW
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5
  • Severity
  • MEDIUM
  • Exploitability Score
  • 10
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 7.5
  • Base Severity
  • HIGH
  • Exploitability Score
  • 3.9
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221478101ee72f5cb4654b9fc363 Mailing List Patch Vendor Advisory
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md Patch Third Party Advisory
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic Mitigation Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6 Mailing List Patch Vendor Advisory
https://access.redhat.com/security/vulnerabilities/tcpsack Third Party Advisory
https://support.f5.com/csp/article/K35421172 Third Party Advisory
http://www.securityfocus.com/bid/108818 Third Party Advisory VDB Entry
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 Third Party Advisory
https://www.kb.cert.org/vuls/id/905115 Third Party Advisory US Government Resource
https://www.synology.com/security/advisory/Synology_SA_19_28 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190625-0001/ Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1594 Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1602 Third Party Advisory
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0008 Third Party Advisory
https://kc.mcafee.com/corporate/index?page=content&id=SB10287 Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/06/28/2 Mailing List Third Party Advisory
https://usn.ubuntu.com/4041-2/ Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/07/06/3 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2019/07/06/4 Mailing List Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:1699 Third Party Advisory
https://usn.ubuntu.com/4041-1/ Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf Third Party Advisory
https://www.us-cert.gov/ics/advisories/icsa-19-253-03 Third Party Advisory US Government Resource
https://support.f5.com/csp/article/K35421172?utm_source=f5support&utm_medium=RSS Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory
https://www.us-cert.gov/ics/advisories/icsma-20-170-06 Third Party Advisory US Government Resource
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt Third Party Advisory
https://www.oracle.com/security-alerts/cpuoct2020.html
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2019-11479
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-11479
History
Created Old Value New Value Data Type Notes
2022-05-10 16:22:51 Added to TrackCVE
2022-12-03 22:15:10 2019-06-19T00:15Z 2019-06-19T00:15:12 CVE Published Date updated
2022-12-03 22:15:10 2020-10-20T22:15:29 CVE Modified Date updated
2022-12-03 22:15:11 Modified Vulnerability Status updated