CVE-2020-10942

Published: 24 March 2020

In the Linux kernel before 5.5.8, get_raw_socket in drivers/vhost/net.c lacks validation of an sk_family field, which might allow attackers to trigger kernel stack corruption via crafted system calls.

From the Ubuntu security team

It was discovered that the vhost net driver in the Linux kernel contained a stack buffer overflow. A local attacker with the ability to perform ioctl() calls on /dev/vhost-net could use this to cause a denial of service (system crash).

Priority

CVSS 3 base score: 5.3

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-18.22)
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-99.100)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.4.0-179.209)
	Ubuntu 14.04 ESM (Trusty Tahr)	Ignored (was needed ESM criteria)
	Patches: Introduced by 3a4d5c94e959359ece6d6b55045c3f046677f55c Fixed by 42d84c8490f9f0931786f1623191fcab397c3d64
linux-aws Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-1005.5)
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-1066.70)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.4.0-1107.118)
	Ubuntu 14.04 ESM (Trusty Tahr)	Released (4.4.0-1067.71)
linux-aws-5.0 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Ignored (was needs-triage now end-of-life)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-aws-5.3 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.3.0-1017.18~18.04.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.15.0-1066.70~16.04.1)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-azure Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-1006.6)
	Ubuntu 18.04 LTS (Bionic Beaver)	Ignored (was needed now end-of-life)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.15.0-1082.92~16.04.1)
	Ubuntu 14.04 ESM (Trusty Tahr)	Ignored (was needed ESM criteria)
linux-azure-4.15 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Not vulnerable (4.15.0-1082.92)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-azure-5.3 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.3.0-1020.21~18.04.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Ignored (was needs-triage now end-of-life)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-gcp Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-1005.5)
	Ubuntu 18.04 LTS (Bionic Beaver)	Ignored (was needed now end-of-life)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.15.0-1061.65)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-gcp-4.15 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Not vulnerable (4.15.0-1071.81)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-gcp-5.3 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.3.0-1018.19~18.04.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-gcp-edge Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Ignored (was needs-triage now end-of-life)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-1058.61)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.0.0-1035.36)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.3.0-1018.19~18.04.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.3.0-51.44~18.04.2)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.15.0-99.100~16.04.1)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-hwe-edge Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Ignored (was needs-triage now end-of-life)
	Ubuntu 16.04 ESM (Xenial Xerus)	Ignored (was needs-triage now end-of-life)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-kvm Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-1004.4)
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-1059.60)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.4.0-1071.78)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-lts-trusty Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Released (4.4.0-179.209~14.04.1)
linux-oem Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-1080.90)
	Ubuntu 16.04 ESM (Xenial Xerus)	Ignored (was needs-triage now end-of-life)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-oem-5.6 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.6.0-1007.7)
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.0.0-1050.55)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-1005.5)
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-1038.42)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.15.0-1038.42~16.04.1)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-oracle-5.0 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Ignored (was needed now end-of-life)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.3.0-1016.18~18.04.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-raspi Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-1007.7)
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Ignored (was needs-triage now end-of-life)
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-1061.65)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.4.0-1133.142)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (5.3.0-1023.25~18.04.1)
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-riscv Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Not vulnerable (5.4.0-24.28)
	Ubuntu 18.04 LTS (Bionic Beaver)	Does not exist
	Ubuntu 16.04 ESM (Xenial Xerus)	Does not exist
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	Upstream	Released (5.6~rc4)



	Ubuntu 20.04 LTS (Focal Fossa)	Does not exist
	Ubuntu 18.04 LTS (Bionic Beaver)	Released (4.15.0-1077.84)
	Ubuntu 16.04 ESM (Xenial Xerus)	Released (4.4.0-1137.145)
	Ubuntu 14.04 ESM (Trusty Tahr)	Does not exist

References

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