CVE-2017-5550

Published: 06 February 2017

Off-by-one error in the pipe_advance function in lib/iov_iter.c in the Linux kernel before 4.9.5 allows local users to obtain sensitive information from uninitialized heap-memory locations in opportunistic circumstances by reading from a pipe after an incorrect buffer-release decision.

From the Ubuntu security team

It was discovered that a fencepost error existed in the pipe_advance() function in the Linux kernel. A local attacker could use this to expose sensitive information (kernel memory).

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-16.19)
Patches:
Introduced by 241699cd72a8489c9446ae3910ddd243e9b9061b
Fixed by b9dc6f65bc5e232d1c05fe34b5daadc7e8bbf1fb
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-aws
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-1004.4~18.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-11.12~18.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-raring
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-lts-trusty
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-1005.5)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.10~rc4)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist