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CVE-2017-9242

Published: 26 May 2017

The __ip6_append_data function in net/ipv6/ip6_output.c in the Linux kernel through 4.11.3 is too late in checking whether an overwrite of an skb data structure may occur, which allows local users to cause a denial of service (system crash) via crafted system calls.

From the Ubuntu security team

It was discovered that the IPv6 stack in the Linux kernel was performing its over write consistency check after the data was actually overwritten. A local attacker could exploit this flaw to cause a denial of service (system crash).

Priority

Medium

CVSS 3 base score: 5.5

Status

Package Release Status
linux
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-16.19)
Patches:
Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Fixed by 232cd35d0804cc241eb887bb8d4d9b3b9881c64a
linux-armadaxp
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
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 (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-azure
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-euclid
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-flo
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-gcp
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1001.1)
linux-gke
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-goldfish
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-hwe
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-hwe-edge
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver)
Released (4.18.0-8.9~18.04.1)
linux-kvm
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.2)
linux-linaro-omap
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
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 (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
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 (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-wily
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-lts-xenial
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-mako
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-manta
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-oem
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.15.0-1002.3)
linux-qcm-msm
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable
(4.13.0-1005.5)
linux-snapdragon
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Not vulnerable

linux-ti-omap4
Launchpad, Ubuntu, Debian
Upstream
Released (4.12~rc3)
Ubuntu 18.04 LTS (Bionic Beaver) Does not exist