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CVE-2019-11479
CVE information
Published
Last Modified
CVSSv2.0 Severity
CVSSv3.1 Severity
Impact Analysis
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..
CVSSv2.0 Score
- Severity
- Medium
- Base Score
- 5/10
- Exploit Score
- 10/10
- Access Vector
- Network
- Access Complexity
- Low
- Authentication Required
- None
- Impact Score
- 2.9/10
- Confidentiality Impact
- None
- Availability Impact
- Partial
- Integrity Impact
- None
CVSSv3.1 Score
- Severity
- High
- Base Score
- 7.5/10
- Exploit Score
- 3.9/10
- Access Vector
- Network
- Access Complexity
- Low
- Privileges Required
- None
- Impact Score
- 3.6/10
- Confidentiality Impact
- None
- Availability Impact
- High
- Integrity Impact
- None
- Scope
- Unchanged
- User Interaction
- None
Products Affected
| CPE | Affected | Vulnerable | Excluding | Edit |
|---|---|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.4 | 4.4.182 | |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.9 | 4.9.182 | |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.14 | 4.14.127 | |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
4.19 | 4.19.52 | |
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
Yes
|
5.1 | 5.1.11 | |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*: |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*: |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*: |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*: |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*: |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*: |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
Yes
|
14.0.0 | 14.0.1.1 | |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
Yes
|
13.1.0 | 13.1.3.2 | |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
Yes
|
15.0.0 | 15.0.1.1 | |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
Yes
|
11.5.2 | 11.6.5.1 | |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
Yes
|
12.1.0 | 12.1.5.1 | |
| cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:* |
Yes
|
14.1.2 | 14.1.2.1 | |
| cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:* |
Yes
|
- | - | |
| cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:f5:enterprise_manager:3.1.1:*:*:*:*:*:*:* |
Yes
|
- | - | |
| cpe:2.3:a:f5:traffix_signaling_delivery_controller:*:*:*:*:* |
Yes
|
5.0.0 | - | |
| cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* |
Yes
|
5.1.0 | - | |
| cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:* |
Yes
|
6.0.0 | - | |
| cpe:2.3:a:f5:iworkflow:2.3.0:*:*:*:*:*:*:* |
Yes
|
- | - |
References
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221
- https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-00
- https://wiki.ubuntu.com/SecurityTeam/KnowledgeBase/SACKPanic
- https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=967c05aee439e6e
- https://access.redhat.com/security/vulnerabilities/tcpsack
- https://support.f5.com/csp/article/K35421172
- http://www.securityfocus.com/bid/108818
- https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44193
- https://www.kb.cert.org/vuls/id/905115
- https://www.synology.com/security/advisory/Synology_SA_19_28
- https://security.netapp.com/advisory/ntap-20190625-0001/
- https://access.redhat.com/errata/RHSA-2019:1594
- https://access.redhat.com/errata/RHSA-2019:1602
- https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0008
- https://kc.mcafee.com/corporate/index?page=content&id=SB10287
- http://www.openwall.com/lists/oss-security/2019/06/28/2
- https://usn.ubuntu.com/4041-2/
- http://www.openwall.com/lists/oss-security/2019/07/06/3
- http://www.openwall.com/lists/oss-security/2019/07/06/4
- https://access.redhat.com/errata/RHSA-2019:1699
- https://usn.ubuntu.com/4041-1/
- https://cert-portal.siemens.com/productcert/pdf/ssa-462066.pdf
- https://www.us-cert.gov/ics/advisories/icsa-19-253-03
- https://www.oracle.com/security-alerts/cpujan2020.html
- https://www.us-cert.gov/ics/advisories/icsma-20-170-06
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2020-010.txt
- https://www.oracle.com/security-alerts/cpuoct2020.html
- https://support.f5.com/csp/article/K35421172?utm_source=f5support&%3Butm_medium=RSS