high
7.5
CWE
400 770
Advisory Published
CVE Published
CVE Published
Updated

CVE-2019-11478: SACK can cause extensive memory use via fragmented resend queue

First published: Tue Jun 11 2019(Updated: )

An excessive resource consumption flaw was found in the way the Linux kernel's networking subsystem processed TCP Selective Acknowledgment (SACK) segments. While processing SACK segments, the Linux kernel's socket buffer (SKB) data structure becomes fragmented, which leads to increased resource utilization to traverse and process these fragments as further SACK segments are received on the same TCP connection. A remote attacker could use this flaw to cause a denial of service (DoS) by sending a crafted sequence of SACK segments on a TCP connection.

Credit: security@ubuntu.com security@ubuntu.com

Affected SoftwareAffected VersionHow to fix
redhat/kernel<0:2.6.32-754.15.3.el6
0:2.6.32-754.15.3.el6
redhat/kernel<0:2.6.32-431.95.3.el6
0:2.6.32-431.95.3.el6
redhat/kernel<0:2.6.32-504.79.3.el6
0:2.6.32-504.79.3.el6
redhat/kernel-rt<0:3.10.0-957.21.3.rt56.935.el7
0:3.10.0-957.21.3.rt56.935.el7
redhat/kernel<0:3.10.0-957.21.3.el7
0:3.10.0-957.21.3.el7
redhat/kernel-alt<0:4.14.0-115.8.2.el7a
0:4.14.0-115.8.2.el7a
redhat/kernel<0:3.10.0-327.79.2.el7
0:3.10.0-327.79.2.el7
redhat/kernel<0:3.10.0-514.66.2.el7
0:3.10.0-514.66.2.el7
redhat/kernel<0:3.10.0-693.50.3.el7
0:3.10.0-693.50.3.el7
redhat/kernel<0:3.10.0-862.34.2.el7
0:3.10.0-862.34.2.el7
redhat/kernel-rt<0:4.18.0-80.4.2.rt9.152.el8_0
0:4.18.0-80.4.2.rt9.152.el8_0
redhat/kernel<0:4.18.0-80.4.2.el8_0
0:4.18.0-80.4.2.el8_0
redhat/kernel-rt<1:3.10.0-693.50.3.rt56.644.el6
1:3.10.0-693.50.3.rt56.644.el6
redhat/redhat-release-virtualization-host<0:4.2-11.1.el7
0:4.2-11.1.el7
redhat/redhat-virtualization-host<0:4.2-20190618.0.el7_6
0:4.2-20190618.0.el7_6
redhat/redhat-release-virtualization-host<0:4.3.4-1.el7e
0:4.3.4-1.el7e
redhat/redhat-virtualization-host<0:4.3.4-20190620.3.el7_6
0:4.3.4-20190620.3.el7_6
debian/linux
4.19.249-2
4.19.289-2
5.10.197-1
5.10.191-1
6.1.66-1
6.1.52-1
6.5.13-1
6.6.8-1
Linux Linux kernel<4.4.182
Linux Linux kernel>=4.5<4.9.182
Linux Linux kernel>=4.10<4.14.127
Linux Linux kernel>=4.15<4.19.52
Linux Linux kernel>=4.20<5.1.11
F5 BIG-IP Advanced Firewall Manager>=11.5.2<=11.6.4
F5 BIG-IP Advanced Firewall Manager>=12.1.0<=12.1.4
F5 BIG-IP Advanced Firewall Manager>=13.1.0<=13.1.1
F5 BIG-IP Advanced Firewall Manager>=14.0.0<=14.1.0
F5 BIG-IP Advanced Firewall Manager=15.0.0
F5 BIG-IP Access Policy Manager>=11.5.2<=11.6.4
F5 BIG-IP Access Policy Manager>=12.1.0<=12.1.4
F5 BIG-IP Access Policy Manager>=13.1.0<=13.1.1
F5 BIG-IP Access Policy Manager>=14.0.0<=14.1.0
F5 BIG-IP Access Policy Manager=15.0.0
F5 Big-ip Application Acceleration Manager>=11.5.2<=11.6.4
F5 Big-ip Application Acceleration Manager>=12.1.0<=12.1.4
F5 Big-ip Application Acceleration Manager>=13.1.0<=13.1.1
F5 Big-ip Application Acceleration Manager>=14.0.0<=14.1.0
F5 Big-ip Application Acceleration Manager=15.0.0
F5 Big-ip Link Controller>=11.5.2<=11.6.4
F5 Big-ip Link Controller>=12.1.0<=12.1.4
F5 Big-ip Link Controller>=13.1.0<=13.1.1
F5 Big-ip Link Controller>=14.0.0<=14.1.0
F5 Big-ip Link Controller=15.0.0
F5 Big-ip Policy Enforcement Manager>=11.5.2<=11.6.4
F5 Big-ip Policy Enforcement Manager>=12.1.0<=12.1.4
F5 Big-ip Policy Enforcement Manager>=13.1.0<=13.1.1
F5 Big-ip Policy Enforcement Manager>=14.0.0<=14.1.0
F5 Big-ip Policy Enforcement Manager=15.0.0
F5 Big-ip Webaccelerator>=11.5.2<=11.6.4
F5 Big-ip Webaccelerator>=12.1.0<=12.1.4
F5 Big-ip Webaccelerator>=13.1.0<=13.1.1
F5 Big-ip Webaccelerator>=14.0.0<=14.1.0
F5 Big-ip Webaccelerator=15.0.0
F5 BIG-IP Application Security Manager>=11.5.2<=11.6.4
F5 BIG-IP Application Security Manager>=12.1.0<=12.1.4
F5 BIG-IP Application Security Manager>=13.1.0<=13.1.1
F5 BIG-IP Application Security Manager>=14.0.0<=14.1.0
F5 BIG-IP Application Security Manager=15.0.0
F5 Big-ip Local Traffic Manager>=11.5.2<=11.6.4
F5 Big-ip Local Traffic Manager>=12.1.0<=12.1.4
F5 Big-ip Local Traffic Manager>=13.1.0<=13.1.1
F5 Big-ip Local Traffic Manager>=14.0.0<=14.1.0
F5 Big-ip Local Traffic Manager=15.0.0
F5 Big-ip Fraud Protection Service>=11.5.2<=11.6.4
F5 Big-ip Fraud Protection Service>=12.1.0<=12.1.4
F5 Big-ip Fraud Protection Service>=13.1.0<=13.1.1
F5 Big-ip Fraud Protection Service>=14.0.0<=14.1.0
F5 Big-ip Fraud Protection Service=15.0.0
F5 Big-ip Global Traffic Manager>=11.5.2<=11.6.4
F5 Big-ip Global Traffic Manager>=12.1.0<=12.1.4
F5 Big-ip Global Traffic Manager>=13.1.0<=13.1.1
F5 Big-ip Global Traffic Manager>=14.0.0<=14.1.0
F5 Big-ip Global Traffic Manager=15.0.0
F5 BIG-IP Analytics>=11.5.2<=11.6.4
F5 BIG-IP Analytics>=12.1.0<=12.1.4
F5 BIG-IP Analytics>=13.1.0<=13.1.1
F5 BIG-IP Analytics>=14.0.0<=14.1.0
F5 BIG-IP Analytics=15.0.0
F5 Big-ip Edge Gateway>=11.5.2<=11.6.4
F5 Big-ip Edge Gateway>=12.1.0<=12.1.4
F5 Big-ip Edge Gateway>=13.1.0<=13.1.1
F5 Big-ip Edge Gateway>=14.0.0<=14.1.0
F5 Big-ip Edge Gateway=15.0.0
F5 Big-ip Domain Name System>=11.5.2<=11.6.4
F5 Big-ip Domain Name System>=12.1.0<=12.1.4
F5 Big-ip Domain Name System>=13.1.0<=13.1.1
F5 Big-ip Domain Name System>=14.0.0<=14.1.0
F5 Big-ip Domain Name System=15.0.0
Canonical Ubuntu Linux=12.04
Canonical Ubuntu Linux=14.04
Canonical Ubuntu Linux=16.04
Canonical Ubuntu Linux=18.04
Canonical Ubuntu Linux=18.10
Canonical Ubuntu Linux=19.04
Redhat Enterprise Linux Atomic Host
Redhat Enterprise Linux=5.0
Redhat Enterprise Linux=6.0
Redhat Enterprise Linux=7.0
Redhat Enterprise Linux=8.0
Redhat Enterprise Linux Aus=6.5
Redhat Enterprise Linux Aus=6.6
Redhat Enterprise Linux Eus=7.4
Redhat Enterprise Linux Eus=7.5
Redhat Enterprise Mrg=2.0
Ivanti Connect Secure
Pulsesecure Pulse Policy Secure
Pulsesecure Pulse Secure Virtual Application Delivery Controller
F5 Traffix Signaling Delivery Controller>=5.0.0<=5.1.0
Pulsesecure Pulse Connect Secure
Siemens CloudConnect 712<1.1.5
1.1.5
Siemens ROX II<2.13.3
2.13.3
Siemens RUGGEDCOM APE 1404 Linux: All versions prior to Debian 9 Linux Image 2019-12-13
Siemens RUGGEDCOM RM1224 (6GK6108-4AM00)<6.2
6.2
Siemens RUGGEDCOM RX 1400 VPE Debian Linux: All versions prior to Debian 9 Linux Image 2019-12-13
Siemens RUGGEDCOM RX 1400 VPE Linux CloudConnect: All versions prior to Debian 9 Linux Image 2019-12-13 13 (only affected by CVE-2019-11479)
Siemens SCALANCE M804PB (6GK5804-0AP00-2AA2)<6.2
6.2
Siemens SCALANCE M812-1 ADSL-Router (Annex A) (6GK5812-1AA00-2AA2)<6.2
6.2
Siemens SCALANCE M812-1 ADSL-Router (Annex B) (6GK5812-1BA00-2AA2)<6.2
6.2
Siemens SCALANCE M816-1 ADSL-Router (Annex A) (6GK5816-1AA00-2AA2)<6.2
6.2
Siemens SCALANCE M816-1 ADSL-Router (Annex B) (6GK5816-1BA00-2AA2)<6.2
6.2
Siemens SCALANCE M826-2 SHDSL-Router (6GK5826-2AB00-2AB2)<6.2
6.2
Siemens SCALANCE M874-2 (6GK5874-2AA00-2AA2)<6.2
6.2
Siemens SCALANCE M874-3 (6GK5874-3AA00-2AA2)<6.2
6.2
Siemens SCALANCE M875
Siemens SCALANCE M876-3 (6GK5876-3AA02-2BA2)<6.2
6.2
Siemens SCALANCE M876-3 (ROK) (6GK5876-3AA02-2EA2)<6.2
6.2
Siemens SCALANCE M876-4 (EU) (6GK5876-4AA00-2BA2)<6.2
6.2
Siemens SCALANCE M876-4 (NAM) (6GK5876-4AA00-2DA2)<6.2
6.2
Siemens SCALANCE S602<4.1
4.1
Siemens SCALANCE S612<4.1
4.1
Siemens SCALANCE S615 (6GK5615-0AA00-2AA2)<6.2
6.2
Siemens SCALANCE S623<4.1
4.1
Siemens SCALANCE S627-2M<4.1
4.1
Siemens SCALANCE SC622-2C (6GK5622-2GS00-2AC2)<2.0.1
2.0.1
Siemens SCALANCE SC632-2C (6GK5632-2GS00-2AC2)<2.0.1
2.0.1
Siemens SCALANCE SC636-2C (6GK5636-2GS00-2AC2)<2.0.1
2.0.1
Siemens SCALANCE SC642-2C (6GK5642-2GS00-2AC2)<2.0.1
2.0.1
Siemens SCALANCE SC646-2C (6GK5646-2GS00-2AC2)<2.0.1
2.0.1
Siemens SCALANCE W1750D<8.6.0
8.6.0
Siemens SCALANCE W-700 IEEE 802.11n family<6.4
6.4
Siemens SCALANCE W-1700 IEEE 802.11ac family<2.0
2.0
Siemens SCALANCE WLC711
Siemens SCALANCE WLC712
Siemens SIMATIC CM 1542-1<3.0
3.0
Siemens SIMATIC CP 343-1 Advanced (incl. SIPLUS variants)

Remedy

https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git/commit/?id=f070ef2ac66716357066b683fb0baf55f8191a2e

Remedy

https://github.com/Netflix/security-bulletins/blob/master/advisories/third-party/2019-001.md

Remedy

For mitigation, please refer to the Red Hat Knowledgebase article: https://access.redhat.com/security/vulnerabilities/tcpsack

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