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CVE-2014-4699

Published: 4 July 2014

The Linux kernel before 3.15.4 on Intel processors does not properly restrict use of a non-canonical value for the saved RIP address in the case of a system call that does not use IRET, which allows local users to leverage a race condition and gain privileges, or cause a denial of service (double fault), via a crafted application that makes ptrace and fork system calls.

From the Ubuntu Security Team

Andy Lutomirski discovered a flaw with the Linux kernel's ptrace syscall on x86_64 processors. An attacker could exploit this flaw to cause a denial of service (System Crash) or potential gain administrative privileges.

Notes

AuthorNote
jdstrand
android kernels (goldfish, grouper, maguro, mako and manta) are not
supported on the Ubuntu Touch 13.10 preview kernels
android kernels (flo, goldfish, grouper, maguro, mako and manta) are
not supported on the Ubuntu Touch 14.04 preview kernels
jj
begin sha1 is not actual commit that broke it just first kernel (2.6.17)
as reported by Andy Lutomirski
x86_64 only. Likely intel only

Priority

High

Status

Package Release Status
linux-goldfish
Launchpad, Ubuntu, Debian
vivid Not vulnerable
(3.4.0-4.23)
lucid Does not exist

precise Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored)
upstream
Released (3.16~rc4)
utopic Not vulnerable
(3.4.0-4.23)
wily Not vulnerable
(3.4.0-4.23)
linux
Launchpad, Ubuntu, Debian
lucid
Released (2.6.32-62.126)
precise
Released (3.2.0-65.99)
saucy
Released (3.11.0-24.42)
trusty
Released (3.13.0-30.55)
upstream
Released (3.16~rc4)
utopic Not vulnerable
(3.16.0-3.8)
vivid Not vulnerable
(3.16.0-23.31)
wily Not vulnerable
(3.19.0-15.15)
Patches:
Introduced by

427abfa28afedffadfca9dd8b067eb6d36bac53f

Fixed by b9cd18de4db3c9ffa7e17b0dc0ca99ed5aa4d43a
linux-armadaxp
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.2.0-1636.53)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

This package is not directly supported by the Ubuntu Security Team
linux-ec2
Launchpad, Ubuntu, Debian
lucid
Released (2.6.32-366.81)
precise Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-flo
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

saucy Does not exist

trusty Does not exist
(trusty was ignored)
upstream
Released (3.16~rc4)
utopic Not vulnerable
(3.4.0-3.15)
vivid Not vulnerable
(3.4.0-3.15)
wily Not vulnerable
(3.4.0-3.15)
linux-fsl-imx51
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-grouper
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored)
upstream
Released (3.16~rc4)
utopic Ignored
(end of life)
vivid Does not exist

wily Does not exist

linux-linaro-omap
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-linaro-shared
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-linaro-vexpress
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-quantal
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.5.0-52.79~precise1)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-raring
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.8.0-42.63~precise1)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-saucy
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.11.0-24.42~precise1)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-trusty
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.13.0-30.55~precise1)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-utopic
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.16.0-25.33~14.04.2])
upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-lts-vivid
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

trusty Does not exist
(trusty was not-affected [3.19.0-18.18~14.04.1])
upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-maguro
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored)
upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-mako
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored)
upstream
Released (3.16~rc4)
utopic Not vulnerable
(3.4.0-5.34)
vivid Not vulnerable
(3.4.0-5.34)
wily Not vulnerable
(3.4.0-5.34)
linux-manta
Launchpad, Ubuntu, Debian
lucid Does not exist

precise Does not exist

saucy Ignored

trusty Does not exist
(trusty was ignored)
upstream
Released (3.16~rc4)
utopic Not vulnerable
(3.4.0-6.29)
vivid Not vulnerable
(3.4.0-6.29)
wily Not vulnerable
(3.4.0-6.29)
linux-mvl-dove
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Does not exist

saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-qcm-msm
Launchpad, Ubuntu, Debian
lucid Ignored
(end of life)
precise Ignored
(end of life)
saucy Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist

linux-raspi2
Launchpad, Ubuntu, Debian
precise Does not exist

trusty Does not exist

upstream
Released (3.16~rc4)
vivid Does not exist

wily Not vulnerable
(4.2.0-1008.12)
linux-ti-omap4
Launchpad, Ubuntu, Debian
lucid Does not exist

precise
Released (3.2.0-1451.71)
saucy Ignored
(end of life)
trusty Does not exist

upstream
Released (3.16~rc4)
utopic Does not exist

vivid Does not exist

wily Does not exist