CVE-2016-9555

Published: 27 November 2016

The sctp_sf_ootb function in net/sctp/sm_statefuns.c in the Linux kernel before 4.8.8 lacks chunk-length checking for the first chunk, which allows remote attackers to cause a denial of service (out-of-bounds slab access) or possibly have unspecified other impact via crafted SCTP data.

From the Ubuntu Security Team

Andrey Konovalov discovered that the SCTP implementation in the Linux kernel improperly handled validation of incoming data. A remote attacker could use this to cause a denial of service (system crash).

Notes

Author	Note
jdstrand	android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support

Author

Note

jdstrand

android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.10 and earlier preview kernels
linux-lts-saucy no longer receives official support
linux-lts-quantal no longer receives official support

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
linux-armadaxp Launchpad, Ubuntu, Debian	zesty	Does not exist
	upstream	Released (4.9~rc4)
	precise	Released (3.2.0-1682.109)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	This package is not directly supported by the Ubuntu Security Team
linux-aws Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Not vulnerable (4.4.0-1002.2)
	xenial	Not vulnerable (4.4.0-1001.10)
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-flo Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist (trusty was ignored)
	xenial	Ignored (abandoned)
	yakkety	Ignored (end of life)
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-gke Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist
	xenial	Not vulnerable (4.4.0-1003.3)
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-goldfish Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist (trusty was ignored)
	xenial	Ignored (abandoned)
	yakkety	Ignored (end of life)
	zesty	Ignored (end of life)
	upstream	Released (4.9~rc4)
linux-grouper Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist (trusty was ignored)
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-hwe Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist
	xenial	Not vulnerable (4.8.0-36.36~16.04.1)
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-hwe-edge Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist
	xenial	Not vulnerable (4.8.0-36.36~16.04.1)
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-linaro-omap Launchpad, Ubuntu, Debian	precise	Ignored (end of life)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-linaro-shared Launchpad, Ubuntu, Debian	precise	Ignored (end of life)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-linaro-vexpress Launchpad, Ubuntu, Debian	precise	Ignored (end of life)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-lts-quantal Launchpad, Ubuntu, Debian	precise	Ignored (end of life)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
	This package is not directly supported by the Ubuntu Security Team
linux-lts-raring Launchpad, Ubuntu, Debian	precise	Ignored (end of life)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-lts-saucy Launchpad, Ubuntu, Debian	precise	Ignored (end of life)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
	This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty Launchpad, Ubuntu, Debian	precise	Released (3.13.0-108.155~precise1)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-lts-utopic Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-lts-vivid Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Released (3.19.0-80.88~14.04.1)
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-lts-wily Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist (trusty was ignored [end of standard support])
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-lts-xenial Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Released (4.4.0-57.78~14.04.1)
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-maguro Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist (trusty was ignored)
	upstream	Released (4.9~rc4)
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
linux-mako Launchpad, Ubuntu, Debian	xenial	Ignored (abandoned)
	yakkety	Ignored (end of life)
	zesty	Does not exist
	upstream	Released (4.9~rc4)
	precise	Does not exist
	trusty	Does not exist (trusty was ignored)
linux-manta Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist (trusty was ignored)
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-qcm-msm Launchpad, Ubuntu, Debian	precise	Ignored (end of life)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux-raspi2 Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist
	xenial	Released (4.4.0-1038.45)
	yakkety	Released (4.8.0-1021.24)
	zesty	Not vulnerable (4.8.0-1021.24)
	upstream	Released (4.9~rc4)
linux-snapdragon Launchpad, Ubuntu, Debian	precise	Does not exist
	trusty	Does not exist
	xenial	Released (4.4.0-1042.46)
	yakkety	Released (4.4.0-1046.50)
	zesty	Not vulnerable (4.4.0-1046.50)
	upstream	Released (4.9~rc4)
linux-ti-omap4 Launchpad, Ubuntu, Debian	precise	Released (3.2.0-1499.126)
	trusty	Does not exist
	xenial	Does not exist
	yakkety	Does not exist
	zesty	Does not exist
	upstream	Released (4.9~rc4)
linux Launchpad, Ubuntu, Debian	upstream	Released (4.9~rc4)
	precise	Released (3.2.0-121.164)
	trusty	Released (3.13.0-108.155)
	xenial	Released (4.4.0-57.78)
	yakkety	Released (4.8.0-32.34)
	zesty	Not vulnerable (4.9.0-11.12)
	Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Fixed by bf911e985d6bbaa328c20c3e05f4eb03de11fdd6

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

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 ›