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.

References

Link	Resource
https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=5f3e2bf008c2221478101ee72f5cb4654b9fc363	Mailing List Patch
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
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

Configurations

Configuration 1

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_advanced_firewall_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_access_policy_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_acceleration_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_link_controller:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_policy_enforcement_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_webaccelerator:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_application_security_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_local_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_fraud_protection_service:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_global_traffic_manager:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_analytics:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_edge_gateway:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-ip_domain_name_system:*:*:*:*:*:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*

cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*

cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*

cpe:2.3:a:f5:enterprise_manager:3.1.1:*:*:*:*:*:*:*

cpe:2.3:a:f5:traffix_sdc:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:big-iq_centralized_management:*:*:*:*:*:*:*:*

cpe:2.3:a:f5:iworkflow:2.3.0:*:*:*:*:*:*:*

History

24 Jan 2023, 16:19

Type	Values Removed	Values Added
CPE		cpe:2.3:a:predictapp_project:predictapp::::::::
References	~~(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 -~~	(MISC) https://github.com/abhilash1985/PredictApp/commit/b067372f3ee26fe1b657121f0f41883ff4461a06 - Patch, Third Party Advisory
References	~~(MISC) https://github.com/abhilash1985/PredictApp/pull/73 -~~	(MISC) https://github.com/abhilash1985/PredictApp/pull/73 - Patch, Third Party Advisory
References	~~(MISC) https://vuldb.com/?id.218387 -~~	(MISC) https://vuldb.com/?id.218387 - Third Party Advisory
References	~~(MISC) https://vuldb.com/?ctiid.218387 -~~	(MISC) https://vuldb.com/?ctiid.218387 - Third Party Advisory
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 9.8
First Time		Predictapp Project predictapp Predictapp Project

16 Jan 2023, 13:15

Type	Values Removed	Values Added
New CVE

5^/10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5^/10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5 /10

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

7.5 /10

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5^/10

7.5^/10