CVE-2016-10906

Published: 19 August 2019

An issue was discovered in drivers/net/ethernet/arc/emac_main.c in the Linux kernel before 4.5. A use-after-free is caused by a race condition between the functions arc_emac_tx and arc_emac_tx_clean.

From the Ubuntu Security Team

It was discovered that a race condition existed in the ARC EMAC ethernet driver for the Linux kernel, resulting in a use-after-free vulnerability. An attacker could use this to cause a denial of service (system crash).

Notes

Author	Note
tyhicks	Setting the priority to low since the ARC EMAC ethernet device driver is for legacy FPGA boards which are unlikely to have a high numbers of users

Priority

Cvss 3 Severity Score

7.0

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.13.0-16.19)
	disco	Not vulnerable (4.18.0-10.11)
	eoan	Not vulnerable (5.0.0-13.14)
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Released (4.5~rc6)
	xenial	Released (4.4.0-166.195)
	Patches: Introduced by e4f2379db6c6823c5d4a4c2c912df00c65de51d7 Fixed by c278c253f3d992c6994d08aa0efb2b6806ca396f
linux-aws Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1001.1)
	disco	Not vulnerable (4.18.0-1002.3)
	eoan	Not vulnerable (5.0.0-1004.4)
	trusty	Released (4.4.0-1056.60) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (4.5~rc6)
	xenial	Released (4.4.0-1096.107)
linux-aws-hwe Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Not vulnerable (4.15.0-1030.31~16.04.1)
linux-azure Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1002.2)
	disco	Not vulnerable (4.18.0-1003.3)
	eoan	Not vulnerable (5.0.0-1004.4)
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Released (4.5~rc6)
	xenial	Not vulnerable (4.11.0-1009.9)
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1002.2)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Not vulnerable (4.11.0-1009.9)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1001.1)
	disco	Not vulnerable (4.18.0-1002.3)
	eoan	Not vulnerable (5.0.0-1004.4)
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Not vulnerable (4.10.0-1004.4)
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1001.1)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1030.32)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.0.0-1011.11~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.18.0-13.14~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Not vulnerable (4.8.0-36.36~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.0.0-15.16~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Not vulnerable (4.8.0-36.36~16.04.1)
linux-kvm Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1002.2)
	disco	Not vulnerable (4.18.0-1003.3)
	eoan	Not vulnerable (5.0.0-1004.4)
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Released (4.4.0-1060.67)
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	trusty	Released (4.4.0-166.195~14.04.1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only)
	upstream	Released (4.5~rc6)
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1002.3)
	disco	Not vulnerable (4.15.0-1021.24)
	eoan	Not vulnerable (4.15.0-1035.40)
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Ignored (end of standard support, was needs-triage)
linux-oracle Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.15.0-1007.9)
	disco	Not vulnerable (4.15.0-1007.9)
	eoan	Not vulnerable (4.15.0-1011.13)
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Not vulnerable (4.15.0-1007.9~16.04.1)
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.13.0-1005.5)
	disco	Not vulnerable (4.18.0-1005.7)
	eoan	Not vulnerable (5.0.0-1006.6)
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Released (4.4.0-1124.133)
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1053.57)
	disco	Not vulnerable (5.0.0-1010.10)
	eoan	Does not exist
	trusty	Does not exist
	upstream	Released (4.5~rc6)
	xenial	Released (4.4.0-1128.136)

Severity score breakdown

Parameter	Value
Base score	7.0
Attack vector	Local
Attack complexity	High
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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