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CVE-2016-3044

Publication date 1 December 2016

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.5 · Medium

Score breakdown

The Linux kernel component in IBM PowerKVM 2.1 before 2.1.1.3-65.10 and 3.1 before 3.1.0.2 allows guest OS users to cause a denial of service (host OS infinite loop and hang) via unspecified vectors.

Read the notes from the security team

Status

Package Ubuntu Release Status
linux 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
12.04 LTS precise
Not affected
linux-armadaxp 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected
linux-aws 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial
Not affected
14.04 LTS trusty
Not affected
12.04 LTS precise Not in release
linux-flo 17.04 zesty Not in release
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-gke 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-goldfish 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-grouper 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-hwe 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-hwe-edge 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-linaro-omap 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-linaro-shared 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-linaro-vexpress 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-quantal 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-raring 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-saucy 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-lts-trusty 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected
linux-lts-utopic 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-lts-vivid 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 3.19.0-59.65~14.04.1
12.04 LTS precise Not in release
linux-lts-wily 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-lts-xenial 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty
Fixed 4.4.0-15.31~14.04.1
12.04 LTS precise Not in release
linux-maguro 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-mako 17.04 zesty Not in release
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-manta 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-qcm-msm 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise Ignored end of life
linux-raspi2 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-snapdragon 17.04 zesty
Not affected
16.10 yakkety
Not affected
16.04 LTS xenial
Not affected
14.04 LTS trusty Not in release
12.04 LTS precise Not in release
linux-ti-omap4 17.04 zesty Not in release
16.10 yakkety Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
12.04 LTS precise
Not affected

Notes

seth-arnold

I haven't determined if this CVE is specific to IBM's PowerKVM Linux distribution or if this is an issue in the Linux kernel.

sbeattie

it sounds possibly like this might be a PowerKVM "rebrand" of CVE-2016-5412. One of the two commits to address that was 93d17397e4e2182fdaad503e2f9da46202c0f1c3, which fixed a similar failure condition: a guest could trigger a host CPU to spin forever with interrupts disabled. Furthermore, the IBM xforce vulnerability page notes that the issue was reported on July 22, 2016, which also happens to be the exact date of the aforementioned git commit. looks like this is actually ccec44563b18a0ce90e2d4f332784b3cb25c8e9c

Patch details

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

Package Patch details
linux

Severity score breakdown

Parameter Value
Base score 6.5 · Medium
Attack vector Local
Attack complexity Low
Privileges required Low
User interaction None
Scope Changed
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H