Vulnerability Monitor

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CVE-2019-11479

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.

Published

2019-06-19T00:15:12.767

Last Modified

2024-11-21T04:21:09.880

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

CVSSv2 Vector

AV:N/AC:L/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

10.0

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-405
Type: Primary
CWE-770

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	< 4.4.182	Yes
Operating System	linux	linux_kernel	< 4.9.182	Yes
Operating System	linux	linux_kernel	< 4.14.127	Yes
Operating System	linux	linux_kernel	< 4.19.52	Yes
Operating System	linux	linux_kernel	< 5.1.11	Yes
Application	f5	big-ip_advanced_firewall_manager	< 11.6.5.1	Yes
Application	f5	big-ip_advanced_firewall_manager	< 12.1.5.1	Yes
Application	f5	big-ip_advanced_firewall_manager	< 13.1.3.2	Yes
Application	f5	big-ip_advanced_firewall_manager	< 14.0.1.1	Yes
Application	f5	big-ip_advanced_firewall_manager	< 14.1.2.1	Yes
Application	f5	big-ip_advanced_firewall_manager	< 15.0.1.1	Yes
Application	f5	big-ip_access_policy_manager	< 11.6.5.1	Yes
Application	f5	big-ip_access_policy_manager	< 12.1.5.1	Yes
Application	f5	big-ip_access_policy_manager	< 13.1.3.2	Yes
Application	f5	big-ip_access_policy_manager	< 14.0.1.1	Yes
Application	f5	big-ip_access_policy_manager	< 14.1.2.1	Yes
Application	f5	big-ip_access_policy_manager	< 15.0.1.1	Yes
Application	f5	big-ip_application_acceleration_manager	< 11.6.5.1	Yes
Application	f5	big-ip_application_acceleration_manager	< 12.1.5.1	Yes
Application	f5	big-ip_application_acceleration_manager	< 13.1.3.2	Yes
Application	f5	big-ip_application_acceleration_manager	< 14.0.1.1	Yes
Application	f5	big-ip_application_acceleration_manager	< 14.1.2.1	Yes
Application	f5	big-ip_application_acceleration_manager	< 15.0.1.1	Yes
Application	f5	big-ip_link_controller	< 11.6.5.1	Yes
Application	f5	big-ip_link_controller	< 12.1.5.1	Yes
Application	f5	big-ip_link_controller	< 13.1.3.2	Yes
Application	f5	big-ip_link_controller	< 14.0.1.1	Yes
Application	f5	big-ip_link_controller	< 14.1.2.1	Yes
Application	f5	big-ip_link_controller	< 15.0.1.1	Yes
Application	f5	big-ip_policy_enforcement_manager	< 11.6.5.1	Yes
Application	f5	big-ip_policy_enforcement_manager	< 12.1.5.1	Yes
Application	f5	big-ip_policy_enforcement_manager	< 13.1.3.2	Yes
Application	f5	big-ip_policy_enforcement_manager	< 14.0.1.1	Yes
Application	f5	big-ip_policy_enforcement_manager	< 14.1.2.1	Yes
Application	f5	big-ip_policy_enforcement_manager	< 15.0.1.1	Yes
Application	f5	big-ip_webaccelerator	< 11.6.5.1	Yes
Application	f5	big-ip_webaccelerator	< 12.1.5.1	Yes
Application	f5	big-ip_webaccelerator	< 13.1.3.2	Yes
Application	f5	big-ip_webaccelerator	< 14.0.1.1	Yes
Application	f5	big-ip_webaccelerator	< 14.1.2.1	Yes
Application	f5	big-ip_webaccelerator	< 15.0.1.1	Yes
Application	f5	big-ip_application_security_manager	< 11.6.5.1	Yes
Application	f5	big-ip_application_security_manager	< 12.1.5.1	Yes
Application	f5	big-ip_application_security_manager	< 13.1.3.2	Yes
Application	f5	big-ip_application_security_manager	< 14.0.1.1	Yes
Application	f5	big-ip_application_security_manager	< 14.1.2.1	Yes
Application	f5	big-ip_application_security_manager	< 15.0.1.1	Yes
Application	f5	big-ip_local_traffic_manager	< 11.6.5.1	Yes
Application	f5	big-ip_local_traffic_manager	< 12.1.5.1	Yes
Application	f5	big-ip_local_traffic_manager	< 13.1.3.2	Yes
Application	f5	big-ip_local_traffic_manager	< 14.0.1.1	Yes
Application	f5	big-ip_local_traffic_manager	< 14.1.2.1	Yes
Application	f5	big-ip_local_traffic_manager	< 15.0.1.1	Yes
Application	f5	big-ip_fraud_protection_service	< 11.6.5.1	Yes
Application	f5	big-ip_fraud_protection_service	< 12.1.5.1	Yes
Application	f5	big-ip_fraud_protection_service	< 13.1.3.2	Yes
Application	f5	big-ip_fraud_protection_service	< 14.0.1.1	Yes
Application	f5	big-ip_fraud_protection_service	< 14.1.2.1	Yes
Application	f5	big-ip_fraud_protection_service	< 15.0.1.1	Yes
Application	f5	big-ip_global_traffic_manager	< 11.6.5.1	Yes
Application	f5	big-ip_global_traffic_manager	< 12.1.5.1	Yes
Application	f5	big-ip_global_traffic_manager	< 13.1.3.2	Yes
Application	f5	big-ip_global_traffic_manager	< 14.0.1.1	Yes
Application	f5	big-ip_global_traffic_manager	< 14.1.2.1	Yes
Application	f5	big-ip_global_traffic_manager	< 15.0.1.1	Yes
Application	f5	big-ip_analytics	< 11.6.5.1	Yes
Application	f5	big-ip_analytics	< 12.1.5.1	Yes
Application	f5	big-ip_analytics	< 13.1.3.2	Yes
Application	f5	big-ip_analytics	< 14.0.1.1	Yes
Application	f5	big-ip_analytics	< 14.1.2.1	Yes
Application	f5	big-ip_analytics	< 15.0.1.1	Yes
Application	f5	big-ip_edge_gateway	< 11.6.5.1	Yes
Application	f5	big-ip_edge_gateway	< 12.1.5.1	Yes
Application	f5	big-ip_edge_gateway	< 13.1.3.2	Yes
Application	f5	big-ip_edge_gateway	< 14.0.1.1	Yes
Application	f5	big-ip_edge_gateway	< 14.1.2.1	Yes
Application	f5	big-ip_edge_gateway	< 15.0.1.1	Yes
Application	f5	big-ip_domain_name_system	< 11.6.5.1	Yes
Application	f5	big-ip_domain_name_system	< 12.1.5.1	Yes
Application	f5	big-ip_domain_name_system	< 13.1.3.2	Yes
Application	f5	big-ip_domain_name_system	< 14.0.1.1	Yes
Application	f5	big-ip_domain_name_system	< 14.1.2.1	Yes
Application	f5	big-ip_domain_name_system	< 15.0.1.1	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	18.10	Yes
Operating System	canonical	ubuntu_linux	19.04	Yes
Operating System	redhat	enterprise_linux	7.0	Yes
Application	f5	big-iq_centralized_management	≤ 5.4.0	Yes
Application	f5	big-iq_centralized_management	≤ 6.1.0	Yes
Application	f5	enterprise_manager	3.1.1	Yes
Application	f5	iworkflow	2.3.0	Yes
Application	f5	traffix_signaling_delivery_controller	≤ 5.1.0	Yes
Application	redhat	virtualization_host	4.0	Yes
Operating System	redhat	enterprise_linux	7.0	No

References

http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/06/28/2 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/07/06/3 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/07/06/4 Mailing List, Third Party Advisory ([email protected])
http://www.securityfocus.com/bid/108818 Third Party Advisory, VDB Entry ([email protected])
https://access.redhat.com/errata/RHSA-2019:1594 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2019:1602 Third Party Advisory ([email protected])
https://access.redhat.com/errata/RHSA-2019:1699 Third Party Advisory ([email protected])
https://access.redhat.com/security/vulnerabilities/tcpsack Third Party Advisory ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf Third Party Advisory ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221478101ee72f5cb4654b9fc363 Mailing List, Patch, Vendor Advisory ([email protected])
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6 Mailing List, Patch, Vendor Advisory ([email protected])
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md Patch, Third Party Advisory ([email protected])
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 Third Party Advisory ([email protected])
https://kc.mcafee.com/corporate/index?page=content&id=SB10287 Third Party Advisory ([email protected])
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0008 Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20190625-0001/ Third Party Advisory ([email protected])
https://support.f5.com/csp/article/K35421172 Third Party Advisory ([email protected])
https://support.f5.com/csp/article/K35421172?utm_source=f5support&amp%3Butm_medium=RSS ([email protected])
https://usn.ubuntu.com/4041-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/4041-2/ Third Party Advisory ([email protected])
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic Mitigation, Third Party Advisory ([email protected])
https://www.kb.cert.org/vuls/id/905115 Third Party Advisory, US Government Resource ([email protected])
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory ([email protected])
https://www.oracle.com/security-alerts/cpuoct2020.html ([email protected])
https://www.synology.com/security/advisory/Synology_SA_19_28 Third Party Advisory ([email protected])
https://www.us-cert.gov/ics/advisories/icsa-19-253-03 Third Party Advisory, US Government Resource ([email protected])
https://www.us-cert.gov/ics/advisories/icsma-20-170-06 Third Party Advisory, US Government Resource ([email protected])
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/06/28/2 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/07/06/3 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.openwall.com/lists/oss-security/2019/07/06/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
http://www.securityfocus.com/bid/108818 Third Party Advisory, VDB Entry (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:1594 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:1602 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/errata/RHSA-2019:1699 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://access.redhat.com/security/vulnerabilities/tcpsack Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221478101ee72f5cb4654b9fc363 Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e5d7d805e195b3a20ef5c433d6 Mailing List, Patch, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://kc.mcafee.com/corporate/index?page=content&id=SB10287 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0008 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20190625-0001/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.f5.com/csp/article/K35421172 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://support.f5.com/csp/article/K35421172?utm_source=f5support&amp%3Butm_medium=RSS (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4041-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4041-2/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.kb.cert.org/vuls/id/905115 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpujan2020.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.oracle.com/security-alerts/cpuoct2020.html (af854a3a-2127-422b-91ae-364da2661108)
https://www.synology.com/security/advisory/Synology_SA_19_28 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.us-cert.gov/ics/advisories/icsa-19-253-03 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)
https://www.us-cert.gov/ics/advisories/icsma-20-170-06 Third Party Advisory, US Government Resource (af854a3a-2127-422b-91ae-364da2661108)