CVE-2017-2671

Published: 05 April 2017

The ping_unhash function in net/ipv4/ping.c in the Linux kernel through 4.10.8 is too late in obtaining a certain lock and consequently cannot ensure that disconnect function calls are safe, which allows local users to cause a denial of service (panic) by leveraging access to the protocol value of IPPROTO_ICMP in a socket system call.

From the Ubuntu security team

Daniel Jiang discovered that a race condition existed in the ipv4 ping socket implementation in the Linux kernel. A local privileged attacker could use this to cause a denial of service (system crash).

Priority

Negligible

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-16.19)
Patches:
Introduced by c319b4d76b9e583a5d88d6bf190e079c4e43213d
Fixed by 43a6684519ab0a6c52024b5e25322476cabad893
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
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 (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-azure-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-1003.3~18.04.1)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.18.0-8.9~18.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
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 (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
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 (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-1005.5)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.11~rc6)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist