CVE-2019-14896

Published: 25 November 2019

A heap-based buffer overflow vulnerability was found in the Linux kernel, version kernel-2.6.32, in Marvell WiFi chip driver. A remote attacker could cause a denial of service (system crash) or, possibly execute arbitrary code, when the lbs_ibss_join_existing function is called after a STA connects to an AP.

From the Ubuntu Security Team

It was discovered that a heap-based buffer overflow existed in the Marvell Libertas WLAN Driver for the Linux kernel. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-74.84)
	disco	Released (5.0.0-38.41)
	eoan	Released (5.3.0-26.28)
	focal	Not vulnerable (5.4.0-9.12)
	trusty	Ignored (was needs-triage ESM criteria)
	upstream	Released (5.5)
	xenial	Released (4.4.0-171.200)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by local-2019-14896-fix\|e5e884b42639c74b5b57dc277909915c0aefc8bb
linux-aws Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1057.59)
	disco	Released (5.0.0-1023.26)
	eoan	Released (5.3.0-1009.10)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Released (4.4.0-1060.64)
	upstream	Released (5.5)
	xenial	Released (4.4.0-1100.111)
linux-aws-5.0 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1023.26~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-aws-hwe Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Released (4.15.0-1057.59~16.04.1)
linux-azure Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1028.30~18.04.1)
	disco	Released (5.0.0-1028.30)
	eoan	Released (5.3.0-1009.10)
	focal	Not vulnerable (5.4.0-1006.6)
	trusty	Released (4.15.0-1066.71~14.04.1)
	upstream	Released (5.5)
	xenial	Released (4.15.0-1066.71)
linux-azure-5.3 Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-1009.10~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-azure-edge Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Ignored (was needs-triage now end-of-life)
linux-gcp Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1028.29~18.04.1)
	disco	Released (5.0.0-1028.29)
	eoan	Released (5.3.0-1011.12)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Released (4.15.0-1052.56)
linux-gcp-5.3 Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-1010.11~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-gcp-edge Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-gke-4.15 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1050.53)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-gke-5.0 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1027.28~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-gke-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1011.12~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	bionic	Released (5.3.0-26.28~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Released (4.15.0-74.83~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	bionic	Ignored (was needs-triage now end-of-life)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Ignored (was needs-triage now end-of-life)
linux-kvm Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1052.52)
	disco	Released (5.0.0-1024.26)
	eoan	Released (5.3.0-1009.10)
	focal	Not vulnerable (5.4.0-1004.4)
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Released (4.4.0-1064.71)
linux-lts-trusty Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	bionic	Does not exist
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Released (4.4.0-171.200~14.04.1)
	upstream	Released (5.5)
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1066.76)
	disco	Ignored (reached end-of-life)
	eoan	Released (4.15.0-1066.76)
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Ignored (was needs-triage now end-of-life)
linux-oem-5.6 Launchpad, Ubuntu, Debian	bionic	Does not exist
	eoan	Does not exist
	focal	Not vulnerable (5.4.0-1002.4)
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-oem-osp1 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1033.38)
	disco	Ignored (reached end-of-life)
	eoan	Released (5.0.0-1033.38)
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-oracle Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1031.34)
	disco	Released (5.0.0-1009.14)
	eoan	Released (5.3.0-1008.9)
	focal	Not vulnerable (5.4.0-1005.5)
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Released (4.15.0-1031.34~16.04.1)
linux-oracle-5.0 Launchpad, Ubuntu, Debian	bionic	Released (5.0.0-1009.14~18.04.1)
	disco	Does not exist
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-oracle-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1011.12~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-raspi2 Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1053.57)
	disco	Released (5.0.0-1024.25)
	eoan	Released (5.3.0-1015.17)
	focal	Ignored (was needed now end-of-life)
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Released (4.4.0-1127.136)
linux-raspi2-5.3 Launchpad, Ubuntu, Debian	bionic	Not vulnerable (5.3.0-1017.19~18.04.1)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Does not exist
linux-snapdragon Launchpad, Ubuntu, Debian	bionic	Released (4.15.0-1070.77)
	disco	Ignored (was pending \[5.0.0-1028.30\] now end-of-life)
	eoan	Does not exist
	focal	Does not exist
	trusty	Does not exist
	upstream	Released (5.5)
	xenial	Released (4.4.0-1131.139)

Severity score breakdown

Parameter	Value
Base score	9.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

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