CVE-2019-2024

Published: 19 June 2019

In em28xx_unregister_dvb of em28xx-dvb.c, there is a possible use after free issue. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-111761954References: Upstream kernel

From the Ubuntu Security Team

It was discovered that the Empia EM28xx DVB USB device driver implementation in the Linux kernel contained a use-after-free vulnerability when disconnecting the device. An attacker could use this to cause a denial of service (system crash).

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-58.64)
	cosmic	Not vulnerable (4.17.0-6.7)
	disco	Not vulnerable (4.18.0-10.11)
	trusty	Not vulnerable (3.11.0-12.19)
	upstream	Released (4.16~rc1)
	xenial	Released (4.4.0-142.168)
	Patches: Introduced by 425f53aaf76cce77b3bedd8ed4902bc94ed254ff Fixed by 910b0797fa9e8af09c44a3fa36cb310ba7a7218d
linux-aws Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1047.49)
	cosmic	Not vulnerable (4.18.0-1002.3)
	disco	Not vulnerable (4.18.0-1002.3)
	trusty	Released (4.4.0-1038.41)
	upstream	Released (4.16~rc1)
	xenial	Released (4.4.0-1075.85)
linux-aws-hwe Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-1047.49~16.04.1)
linux-azure Launchpad, Ubuntu, Debian	bionic	Released (4.18.0-1011.11~18.04.1)
	cosmic	Not vulnerable (4.18.0-1003.3)
	disco	Not vulnerable (4.18.0-1003.3)
	trusty	Ignored (was needed ESM criteria)
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-1055.60)
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Released (4.18.0-1011.11~18.04.1)
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-1055.60)
linux-euclid Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Ignored (was needs-triage ESM criteria)
linux-flo Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.16~rc1)
	xenial	Ignored (abandoned)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1040.42)
	cosmic	Not vulnerable (4.18.0-1002.3)
	disco	Not vulnerable (4.18.0-1002.3)
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-1040.42~16.04.1)
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1040.42)
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-gke Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Ignored (end of standard support)
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1040.42)
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	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
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-goldfish Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.16~rc1)
	xenial	Ignored (end of life)
linux-grouper Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Not vulnerable (4.18.0-13.14~18.04.1)
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-58.64~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.0.0-15.16~18.04.1)
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-58.64~16.04.1)
linux-kvm Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1042.42)
	cosmic	Not vulnerable (4.18.0-1002.2)
	disco	Not vulnerable (4.18.0-1003.3)
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.4.0-1040.46)
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Ignored (end of life, was ignored)
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-lts-vivid Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Ignored (end of life, was ignored)
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-lts-wily Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Ignored (end of life, was ignored)
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Released (4.4.0-142.168~14.04.1)
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-maguro Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-mako Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.16~rc1)
	xenial	Ignored (abandoned)
linux-manta Launchpad, Ubuntu, Debian	bionic	Does not exist
	cosmic	Does not exist
	disco	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.16~rc1)
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1050.57)
	cosmic	Ignored (end of life)
	disco	Released (4.15.0-1050.57)
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Ignored (end of standard support, was needs-triage)
linux-oracle Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1021.23)
	cosmic	Ignored (end of life)
	disco	Released (5.0.0-1004.8)
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.15.0-1021.23~16.04.1)
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1043.46)
	cosmic	Not vulnerable (4.18.0-1004.6)
	disco	Not vulnerable (4.18.0-1005.7)
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.4.0-1103.111)
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1060.66)
	cosmic	Does not exist
	disco	Not vulnerable (5.0.0-1010.10)
	trusty	Does not exist
	upstream	Released (4.16~rc1)
	xenial	Released (4.4.0-1107.112)

Severity score breakdown

Parameter	Value
Base score	7.8
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

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