CVE-2017-5972

EUVD-2017-15041

14.02.2017, 06:59

The TCP stack in the Linux kernel 3.x does not properly implement a SYN cookie protection mechanism for the case of a fast network connection, which allows remote attackers to cause a denial of service (CPU consumption) by sending many TCP SYN packets, as demonstrated by an attack against the kernel-3.10.0 package in CentOS Linux 7. NOTE: third parties have been unable to discern any relationship between the GitHub Engineering finding and the Trigemini.c attack code.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	7.5 HIGH	NETWORK	LOW	NONE	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Base Score

CVSS 3.x

EPSS Score

Percentile: 95%

Affected Products (NVD)

Vendor	Product	Version
linux	linux_kernel	3.0.0 ≤ 𝑥 ≤ 3.19.8

𝑥

= Vulnerable software versions

Debian Releases

Debian Product

Codename

linux

bookworm	6.1.106-3 fixed
bookworm (security)	6.1.112-1 fixed
bullseye	5.10.223-1 fixed
bullseye (security)	5.10.226-1 fixed
jessie	ignored
sid	6.11.5-1 fixed
trixie	6.11.5-1 fixed
wheezy	no-dsa

Ubuntu Releases

Ubuntu Product

Codename

linux

artful	not-affected
bionic	not-affected
cosmic	not-affected
disco	not-affected
precise	ignored
trusty	ignored
xenial	not-affected
yakkety	not-affected
zesty	not-affected

linux-armadaxp

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-aws

artful	dne
bionic	not-affected
cosmic	not-affected
disco	not-affected
precise	dne
trusty	not-affected
xenial	not-affected
yakkety	dne
zesty	dne

linux-aws-hwe

bionic	dne
cosmic	dne
disco	dne
trusty	dne
xenial	not-affected

linux-azure

artful	dne
bionic	not-affected
cosmic	not-affected
disco	not-affected
trusty	not-affected
xenial	not-affected
yakkety	dne
zesty	dne

linux-azure-edge

bionic	not-affected
cosmic	dne
disco	dne
trusty	dne
xenial	not-affected

linux-euclid

artful	dne
bionic	dne
cosmic	dne
disco	dne
trusty	dne
xenial	not-affected
zesty	dne

linux-flo

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	ignored
yakkety	ignored
zesty	dne

linux-gcp

artful	dne
bionic	not-affected
cosmic	not-affected
disco	not-affected
trusty	dne
xenial	not-affected
yakkety	dne
zesty	dne

linux-gcp-edge

bionic	not-affected
cosmic	dne
disco	dne
trusty	dne
xenial	dne

linux-gke

artful	dne
bionic	not-affected
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	not-affected
yakkety	dne
zesty	dne

linux-goldfish

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	ignored
yakkety	ignored
zesty	ignored

linux-grouper

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-hwe

artful	dne
bionic	not-affected
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	not-affected
yakkety	dne
zesty	dne

linux-hwe-edge

artful	dne
bionic	not-affected
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	not-affected
yakkety	dne
zesty	dne

linux-kvm

artful	dne
bionic	not-affected
cosmic	not-affected
disco	not-affected
trusty	dne
xenial	not-affected
zesty	dne

linux-linaro-omap

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-linaro-shared

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-linaro-vexpress

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-lts-quantal

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-lts-raring

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-lts-saucy

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-lts-trusty

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-lts-utopic

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	ignored
xenial	dne
yakkety	dne
zesty	dne

linux-lts-vivid

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	ignored
xenial	dne
yakkety	dne
zesty	dne

linux-lts-wily

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	ignored
xenial	dne
yakkety	dne
zesty	dne

linux-lts-xenial

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	not-affected
xenial	dne
yakkety	dne
zesty	dne

linux-maguro

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-mako

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	ignored
yakkety	ignored
zesty	dne

linux-manta

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	dne
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-oem

artful	dne
bionic	not-affected
cosmic	not-affected
disco	not-affected
trusty	dne
xenial	not-affected
zesty	dne

linux-oracle

bionic	not-affected
cosmic	not-affected
disco	not-affected
trusty	dne
xenial	not-affected

linux-qcm-msm

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

linux-raspi2

artful	not-affected
bionic	not-affected
cosmic	not-affected
disco	not-affected
precise	dne
trusty	dne
xenial	not-affected
yakkety	not-affected
zesty	not-affected

linux-snapdragon

artful	not-affected
bionic	not-affected
cosmic	dne
disco	not-affected
precise	dne
trusty	dne
xenial	not-affected
yakkety	not-affected
zesty	not-affected

linux-ti-omap4

artful	dne
bionic	dne
cosmic	dne
disco	dne
precise	ignored
trusty	dne
xenial	dne
yakkety	dne
zesty	dne

Known Exploits!

Common Weakness Enumeration

CWE-400 - Uncontrolled Resource Consumption
The software does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources.

References

http://seclists.org/oss-sec/2017/q1/573

http://www.securityfocus.com/bid/96231

https://access.redhat.com/security/cve/cve-2017-5972

https://bugzilla.redhat.com/show_bug.cgi?id=1422081

https://cxsecurity.com/issue/WLB-2017020112

https://githubengineering.com/syn-flood-mitigation-with-synsanity/

https://packetstormsecurity.com/files/141083/CentOS7-Kernel-Denial-Of-Service.html

https://security-tracker.debian.org/tracker/CVE-2017-5972

https://www.exploit-db.com/exploits/41350/