CVE-2015-2686

net/socket.c in the Linux kernel 3.19 before 3.19.3 does not validate certain range data for (1) sendto and (2) recvfrom system calls, which allows local users to gain privileges by leveraging a subsystem that uses the copy_from_iter function in the iov_iter interface, as demonstrated by the Bluetooth subsystem.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
linux	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.10 utopic	Not affected
	14.04 LTS trusty	Not affected
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Not affected
linux-armadaxp	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Not in release
linux-ec2	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not affected
linux-flo	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.10 utopic	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-fsl-imx51	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Ignored end of life
linux-goldfish	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.10 utopic	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-grouper	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Ignored end of life
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-linaro-omap	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life
	10.04 LTS lucid	Not in release
linux-linaro-shared	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life
	10.04 LTS lucid	Not in release
linux-linaro-vexpress	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life
	10.04 LTS lucid	Not in release
linux-lts-quantal	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Not in release
linux-lts-raring	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life, was needs-triage
	10.04 LTS lucid	Not in release
linux-lts-saucy	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Not in release
linux-lts-trusty	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Not in release
linux-lts-utopic	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-lts-vivid	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-maguro	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-mako	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.10 utopic	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-manta	15.10 wily	Not affected
	15.04 vivid	Not affected
	14.10 utopic	Not affected
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Not in release
linux-mvl-dove	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
	10.04 LTS lucid	Ignored end of life
linux-qcm-msm	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Ignored end of life
	10.04 LTS lucid	Ignored end of life
linux-raspi2	15.10 wily	Not affected
	15.04 vivid	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not in release
linux-ti-omap4	15.10 wily	Not in release
	15.04 vivid	Not in release
	14.10 utopic	Not in release
	14.04 LTS trusty	Not in release
	12.04 LTS precise	Not affected
	10.04 LTS lucid	Not in release

Notes

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

Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
linux	Introduced by c0371da, fixed by 4de930e

Severity score breakdown

Parameter	Value
Base score	7.8 · High
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

Other references