CVE-2018-6555

Published: 4 September 2018

The irda_setsockopt function in net/irda/af_irda.c and later in drivers/staging/irda/net/af_irda.c in the Linux kernel before 4.17 allows local users to cause a denial of service (ias_object use-after-free and system crash) or possibly have unspecified other impact via an AF_IRDA socket.

From the Ubuntu Security Team

It was discovered that a use-after-free vulnerability existed in the IRDA implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.

Notes

Author	Note
tyhicks	The irda subsystem was removed in 4.17

Priority

Cvss 3 Severity Score

7.8

Score breakdown

Status

Package	Release	Status
linux Launchpad, Ubuntu, Debian	artful	Ignored (end of life, was needed)
	bionic	Released (4.15.0-36.39)
	cosmic	Not vulnerable (4.17.0-6.7)
	trusty	Released (3.13.0-160.210)
	upstream	Released (4.17~rc3)
	xenial	Released (4.4.0-137.163)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by local-2018-6555-1\|edf5c17d866eada03b8750368a12dc3def77d608
linux-aws Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Released (4.15.0-1023.23)
	cosmic	Not vulnerable (4.18.0-1002.3)
	trusty	Released (4.4.0-1031.34)
	upstream	Released (4.17~rc3)
	xenial	Released (4.4.0-1069.79)
linux-azure Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Released (4.15.0-1025.26)
	cosmic	Not vulnerable (4.18.0-1003.3)
	trusty	Released (4.15.0-1030.31~14.04.1)
	upstream	Released (4.17~rc3)
	xenial	Released (4.15.0-1025.26~16.04.1)
linux-azure-edge Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Not vulnerable (4.18.0-1004.4~18.04.1)
	cosmic	Does not exist
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Released (4.15.0-1025.26)
linux-euclid Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Ignored (was needed ESM criteria)
linux-flo Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.17~rc3)
	xenial	Ignored (abandoned)
linux-gcp Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Released (4.15.0-1021.22)
	cosmic	Not vulnerable (4.18.0-1002.3)
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Released (4.15.0-1021.22~16.04.1)
linux-gke Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Ignored (end of standard support)
linux-goldfish Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.17~rc3)
	xenial	Ignored (end of life)
linux-grouper Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-hwe Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Not vulnerable
	cosmic	Does not exist
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Released (4.15.0-36.39~16.04.1)
linux-hwe-edge Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Not vulnerable (4.18.0-11.12~18.04.1)
	cosmic	Does not exist
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Released (4.15.0-36.39~16.04.1)
linux-kvm Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Released (4.15.0-1023.23)
	cosmic	Not vulnerable (4.18.0-1002.2)
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Released (4.4.0-1035.41)
linux-lts-trusty Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-lts-utopic Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-lts-vivid Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-lts-wily Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-lts-xenial Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Released (4.4.0-137.163~14.04.1)
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-maguro Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-mako Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.17~rc3)
	xenial	Ignored (abandoned)
linux-manta Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Does not exist
	cosmic	Does not exist
	trusty	Does not exist (trusty was ignored [abandoned])
	upstream	Released (4.17~rc3)
	xenial	Does not exist
linux-oem Launchpad, Ubuntu, Debian	artful	Does not exist
	bionic	Released (4.15.0-1021.24)
	cosmic	Not vulnerable (4.15.0-1021.24)
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Ignored (end of standard support, was needed)
linux-raspi2 Launchpad, Ubuntu, Debian	artful	Ignored (end of life, was needs-triage)
	bionic	Released (4.15.0-1024.26)
	cosmic	Not vulnerable (4.18.0-1004.6)
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Released (4.4.0-1098.106)
linux-snapdragon Launchpad, Ubuntu, Debian	artful	Ignored (end of life, was needs-triage)
	bionic	Not vulnerable
	cosmic	Does not exist
	trusty	Does not exist
	upstream	Released (4.17~rc3)
	xenial	Released (4.4.0-1102.107)

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

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›