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CVE-2019-11478

SACK can cause extensive memory use via fragmented resend queue

Published: Jun 18, 2019Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-770
5.3MEDIUM
NVD MITRE
EPSS Score
94.7%
Top 0.1%
CISA KEV
Not in KEV
Exploits
6 Known
Remediation
Patch Available
Self-Check
OpenVAS

Description

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 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 commit f070ef2ac66716357066b683fb0baf55f8191a2e.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
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Weaknesses

CWE-770CWE-400

Affected Products

Siemens AG
commercial·DEaka siemens
TIM 1531 IRC
ICS / OT / IoT
SIMATIC RF188C
ICS / OT / IoT
SIMATIC RF600R
ICS / OT / IoT
SIMATIC RF185C
ICS / OT / IoT
SIMATIC RF186C
ICS / OT / IoT
SIMATIC Teleservice Adapter IE Advanced
ICS / OT / IoT
SIMATIC Teleservice Adapter IE Basic
ICS / OT / IoT
SIMATIC S7-1500 CPU S7-1518F-4 PN/DP MFP
ICS / OT / IoT
f5
commercial·US
big-ip advanced firewall managerOn-premSecurity Product
Networking Infrastructure / firewall
big-ip access policy managerOn-premNetwork Device
Networking Infrastructure / firewall
big-ip application acceleration managerOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy
big-ip link controllerOn-premNetwork Device
Networking Infrastructure / router-switch
big-ip policy enforcement managerOn-premNetwork Device
Networking Infrastructure
big-ip webacceleratorOn-premNetwork Device
Networking Infrastructure / vpn-gateway
big-ip application security managerOn-premNetwork Device
Networking Infrastructure / firewall
big-ip local traffic managerOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy
Broadcom Inc.
commercial·USaka vmware by broadcom
VMware vCenter ServerOn-prem
Cloud & SaaS
VMware Cloud DirectorSaaSSaaS Service
Cloud & SaaS / cloud-platform
VMware Cloud Director Usage MeterSaaS
Cloud & SaaS
VMware Aria AutomationSaaSSaaS Service
Cloud & SaaS / container-orchestration
VMware Aria Operations for NetworksSaaSSaaS Service
Cloud & SaaS
VMware Aria Automation OrchestratorSaaSSaaS Service
Cloud & SaaS / container-orchestration
VMware Aria Suite LifecycleSaaSSaaS Service
Cloud & SaaS / cloud-platform
Oracle Corp.
commercial·USaka oracle
Enterprise Communications BrokerOn-premWeb App
Communications
Oracle Communications Session Border ControllerOn-premNetwork Device
Networking Infrastructure
Oracle Enterprise Session Border ControllerOn-premNetwork Device
Networking Infrastructure
Oracle Communications Session RouterOn-prem
Communications
Oracle Communications Subscriber-Aware Load BalancerOn-premNetwork Device
Networking Infrastructure / load-balancer-proxy
redhat
commercial·USaka red hat
enterprise linux atomic hostOn-prem
Operating Systems / linux-distro
enterprise linux eusOn-premOS
Operating Systems / linux-distro
enterprise linux ausOn-prem
Operating Systems / linux-distro
enterprise mrgOn-prem
Operating Systems / linux-distro
pulsesecure
commercial·USaka pulsedsecure, pulse secure
pulse policy secureSecurity Product
Networking Infrastructure / firewall
pulse secure virtual application delivery controllerOn-premNetwork Device
Networking Infrastructure / vpn-gateway
and 52 more affected products View all →

Exploitability

6 exploit sources identified

Exploit details including PoC links, Metasploit modules, and scanner templates are available after registration.

View exploit details
Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://www.kb.cert.org/vuls/id/905115
kb.cert.org
https://access.redhat.com/errata/RHSA-2019:1594
access.redhat.com
https://access.redhat.com/errata/RHSA-2019:1602
access.redhat.com
and 80 more references View all →

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