CVE-2014-7843
Published: 29 November 2014
The __clear_user function in arch/arm64/lib/clear_user.S in the Linux kernel before 3.17.4 on the ARM64 platform allows local users to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary.
From the Ubuntu Security Team
Miloš Prchlík reported a flaw in how the ARM64 platform handles a single byte overflow in __clear_user. A local user could exploit this flaw to cause a denial of service (system crash) by reading one byte beyond a /dev/zero page boundary.
Notes
Author | Note |
---|---|
jdstrand | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.04 preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
lucid |
Not vulnerable
|
precise |
Not vulnerable
|
|
trusty |
Released
(3.13.0-44.73)
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Released
(3.16.0-29.39)
|
|
vivid |
Not vulnerable
(3.18.0-8.9)
|
|
wily |
Not vulnerable
(3.19.0-15.15)
|
|
Patches: Introduced by 0aea86a2176c22647a5b683768f858d880d5e05b |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
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 |
Not vulnerable
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
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
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-fsl-imx51 Launchpad, Ubuntu, Debian |
lucid |
Ignored
(end of life)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-grouper Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.18~rc5)
|
|
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)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
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)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
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)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-raring Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Ignored
(end of life, was needs-triage)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Ignored
(end of life, was pending)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Released
(3.13.0-44.73~precise1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
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 |
Released
(3.16.0-29.39~14.04.1)
|
|
upstream |
Released
(3.18~rc5)
|
|
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
(3.18~rc5)
|
|
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
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.18~rc5)
|
|
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
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-manta Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Not vulnerable
|
|
vivid |
Not vulnerable
|
|
wily |
Not vulnerable
|
|
linux-mvl-dove Launchpad, Ubuntu, Debian |
lucid |
Ignored
(end of life)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
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)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
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
(3.18~rc5)
|
|
vivid |
Does not exist
|
|
wily |
Not vulnerable
(4.2.0-1008.12)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
lucid |
Does not exist
|
precise |
Not vulnerable
|
|
trusty |
Does not exist
|
|
upstream |
Released
(3.18~rc5)
|
|
utopic |
Does not exist
|
|
vivid |
Does not exist
|
|
wily |
Does not exist
|
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1163744
- https://ubuntu.com/security/notices/USN-2465-1
- https://ubuntu.com/security/notices/USN-2466-1
- https://ubuntu.com/security/notices/USN-2467-1
- https://ubuntu.com/security/notices/USN-2468-1
- https://www.cve.org/CVERecord?id=CVE-2014-7843
- NVD
- Launchpad
- Debian