PublicDateAtUSN: 2014-08-13
Candidate: CVE-2014-5207
PublicDate: 2014-08-18 11:15:00 UTC
References:
 https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-5207
 http://www.openwall.com/lists/oss-security/2014/08/13/4
 http://www.openwall.com/lists/oss-security/2014/08/12/6
 https://ubuntu.com/security/notices/USN-2317-1
 https://ubuntu.com/security/notices/USN-2318-1
Description:
 fs/namespace.c in the Linux kernel through 3.16.1 does not properly
 restrict clearing MNT_NODEV, MNT_NOSUID, and MNT_NOEXEC and changing
 MNT_ATIME_MASK during a remount of a bind mount, which allows local users
 to gain privileges, interfere with backups and auditing on systems that had
 atime enabled, or cause a denial of service (excessive filesystem updating)
 on systems that had atime disabled via a "mount -o remount" command within
 a user namespace.
Ubuntu-Description:
 Eric W. Biederman discovered a flaw with the mediation of mount flags in
 the Linux kernel's user namespace subsystem. An unprivileged user could
 exploit this flaw to by-pass mount restrictions, and potentially gain
 administrative privileges.
Notes:
 jdstrand> android kernels (goldfish, grouper, maguro, mako and manta) are not
  supported on the Ubuntu Touch 13.10 preview kernels
 jdstrand> android kernels (flo, goldfish, grouper, maguro, mako and manta) are
  not supported on the Ubuntu Touch 14.04 preview kernels
 seth-arnold> this fix was assigned to CVE-2014-5206: db181ce011e3c033328608299cd6fac06ea50130
 jdstrand> linux-lts-saucy no longer receives official support
Bugs:
 https://launchpad.net/bugs/1356323
Priority: high
Discovered-by: Eric W. Biederman
Assigned-to: 
CVSS: 

Patches_linux:
 break-fix: 0c55cfc4166d9a0f38de779bd4d75a90afbe7734 9566d6742852c527bf5af38af5cbb878dad75705
 break-fix: 0c55cfc4166d9a0f38de779bd4d75a90afbe7734 ffbc6f0ead47fa5a1dc9642b0331cb75c20a640e
upstream_linux: released (3.17~rc1)
lucid_linux: not-affected
precise_linux: not-affected
trusty_linux: released (3.13.0-34.60)
trusty/esm_linux: released (3.13.0-34.60)
utopic_linux: not-affected (3.16.0-8.13)
vivid_linux: not-affected (3.16.0-23.31)
vivid/stable-phone-overlay_linux: DNE
vivid/ubuntu-core_linux: not-affected (3.16.0-23.31)
wily_linux: not-affected (3.19.0-15.15)
devel_linux: not-affected (4.2.0-16.19)

Patches_linux-ec2:
upstream_linux-ec2: released (3.17~rc1)
lucid_linux-ec2: not-affected
precise_linux-ec2: DNE
trusty_linux-ec2: DNE
trusty/esm_linux-ec2: DNE
utopic_linux-ec2: DNE
vivid_linux-ec2: DNE
vivid/stable-phone-overlay_linux-ec2: DNE
vivid/ubuntu-core_linux-ec2: DNE
wily_linux-ec2: DNE
devel_linux-ec2: DNE

Patches_linux-mvl-dove:
upstream_linux-mvl-dove: released (3.17~rc1)
lucid_linux-mvl-dove: ignored (reached end-of-life)
precise_linux-mvl-dove: DNE
trusty_linux-mvl-dove: DNE
trusty/esm_linux-mvl-dove: DNE
utopic_linux-mvl-dove: DNE
vivid_linux-mvl-dove: DNE
vivid/stable-phone-overlay_linux-mvl-dove: DNE
vivid/ubuntu-core_linux-mvl-dove: DNE
wily_linux-mvl-dove: DNE
devel_linux-mvl-dove: DNE

Patches_linux-ti-omap4:
upstream_linux-ti-omap4: released (3.17~rc1)
lucid_linux-ti-omap4: DNE
precise_linux-ti-omap4: not-affected
trusty_linux-ti-omap4: DNE
trusty/esm_linux-ti-omap4: DNE
utopic_linux-ti-omap4: DNE
vivid_linux-ti-omap4: DNE
vivid/stable-phone-overlay_linux-ti-omap4: DNE
vivid/ubuntu-core_linux-ti-omap4: DNE
wily_linux-ti-omap4: DNE
devel_linux-ti-omap4: DNE

Patches_linux-fsl-imx51:
upstream_linux-fsl-imx51: released (3.17~rc1)
lucid_linux-fsl-imx51: ignored (reached end-of-life, does not affect buildd)
precise_linux-fsl-imx51: DNE
trusty_linux-fsl-imx51: DNE
trusty/esm_linux-fsl-imx51: DNE
utopic_linux-fsl-imx51: DNE
vivid_linux-fsl-imx51: DNE
vivid/stable-phone-overlay_linux-fsl-imx51: DNE
vivid/ubuntu-core_linux-fsl-imx51: DNE
wily_linux-fsl-imx51: DNE
devel_linux-fsl-imx51: DNE

Patches_linux-linaro-omap:
upstream_linux-linaro-omap: released (3.17~rc1)
lucid_linux-linaro-omap: DNE
precise_linux-linaro-omap: ignored (abandoned)
trusty_linux-linaro-omap: DNE
trusty/esm_linux-linaro-omap: DNE
utopic_linux-linaro-omap: DNE
vivid_linux-linaro-omap: DNE
vivid/stable-phone-overlay_linux-linaro-omap: DNE
vivid/ubuntu-core_linux-linaro-omap: DNE
wily_linux-linaro-omap: DNE
devel_linux-linaro-omap: DNE

Patches_linux-linaro-shared:
upstream_linux-linaro-shared: released (3.17~rc1)
lucid_linux-linaro-shared: DNE
precise_linux-linaro-shared: ignored (abandoned)
trusty_linux-linaro-shared: DNE
trusty/esm_linux-linaro-shared: DNE
utopic_linux-linaro-shared: DNE
vivid_linux-linaro-shared: DNE
vivid/stable-phone-overlay_linux-linaro-shared: DNE
vivid/ubuntu-core_linux-linaro-shared: DNE
wily_linux-linaro-shared: DNE
devel_linux-linaro-shared: DNE

Patches_linux-linaro-vexpress:
upstream_linux-linaro-vexpress: released (3.17~rc1)
lucid_linux-linaro-vexpress: DNE
precise_linux-linaro-vexpress: ignored (abandoned)
trusty_linux-linaro-vexpress: DNE
trusty/esm_linux-linaro-vexpress: DNE
utopic_linux-linaro-vexpress: DNE
vivid_linux-linaro-vexpress: DNE
vivid/stable-phone-overlay_linux-linaro-vexpress: DNE
vivid/ubuntu-core_linux-linaro-vexpress: DNE
wily_linux-linaro-vexpress: DNE
devel_linux-linaro-vexpress: DNE

Patches_linux-qcm-msm:
upstream_linux-qcm-msm: released (3.17~rc1)
lucid_linux-qcm-msm: ignored (abandoned)
precise_linux-qcm-msm: ignored (abandoned)
trusty_linux-qcm-msm: DNE
trusty/esm_linux-qcm-msm: DNE
utopic_linux-qcm-msm: DNE
vivid_linux-qcm-msm: DNE
vivid/stable-phone-overlay_linux-qcm-msm: DNE
vivid/ubuntu-core_linux-qcm-msm: DNE
wily_linux-qcm-msm: DNE
devel_linux-qcm-msm: DNE

Tags_linux-armadaxp: not-ue
Patches_linux-armadaxp:
upstream_linux-armadaxp: released (3.17~rc1)
lucid_linux-armadaxp: DNE
precise_linux-armadaxp: not-affected
trusty_linux-armadaxp: DNE
trusty/esm_linux-armadaxp: DNE
utopic_linux-armadaxp: DNE
vivid_linux-armadaxp: DNE
vivid/stable-phone-overlay_linux-armadaxp: DNE
vivid/ubuntu-core_linux-armadaxp: DNE
wily_linux-armadaxp: DNE
devel_linux-armadaxp: DNE

Patches_linux-lts-quantal:
upstream_linux-lts-quantal: released (3.17~rc1)
lucid_linux-lts-quantal: DNE
precise_linux-lts-quantal: not-affected
trusty_linux-lts-quantal: DNE
trusty/esm_linux-lts-quantal: DNE
utopic_linux-lts-quantal: DNE
vivid_linux-lts-quantal: DNE
vivid/stable-phone-overlay_linux-lts-quantal: DNE
vivid/ubuntu-core_linux-lts-quantal: DNE
wily_linux-lts-quantal: DNE
devel_linux-lts-quantal: DNE

Patches_linux-lts-raring:
upstream_linux-lts-raring: released (3.17~rc1)
lucid_linux-lts-raring: DNE
precise_linux-lts-raring: ignored (was needs-triage now end-of-life)
trusty_linux-lts-raring: DNE
trusty/esm_linux-lts-raring: DNE
utopic_linux-lts-raring: DNE
vivid_linux-lts-raring: DNE
vivid/stable-phone-overlay_linux-lts-raring: DNE
vivid/ubuntu-core_linux-lts-raring: DNE
wily_linux-lts-raring: DNE
devel_linux-lts-raring: DNE

Tags_linux-lts-saucy: not-ue
Patches_linux-lts-saucy:
upstream_linux-lts-saucy: released (3.17~rc1)
lucid_linux-lts-saucy: DNE
precise_linux-lts-saucy: ignored (was pending [3.11.0-27.47~precise1] OEM release)
trusty_linux-lts-saucy: DNE
trusty/esm_linux-lts-saucy: DNE
utopic_linux-lts-saucy: DNE
vivid_linux-lts-saucy: DNE
vivid/stable-phone-overlay_linux-lts-saucy: DNE
vivid/ubuntu-core_linux-lts-saucy: DNE
wily_linux-lts-saucy: DNE
devel_linux-lts-saucy: DNE

Patches_linux-lts-trusty:
upstream_linux-lts-trusty: released (3.17~rc1)
lucid_linux-lts-trusty: DNE
precise_linux-lts-trusty: released (3.13.0-34.60~precise1)
trusty_linux-lts-trusty: DNE
trusty/esm_linux-lts-trusty: DNE
utopic_linux-lts-trusty: DNE
vivid_linux-lts-trusty: DNE
vivid/stable-phone-overlay_linux-lts-trusty: DNE
vivid/ubuntu-core_linux-lts-trusty: DNE
wily_linux-lts-trusty: DNE
devel_linux-lts-trusty: DNE

Patches_linux-goldfish:
upstream_linux-goldfish: released (3.17~rc1)
lucid_linux-goldfish: DNE
precise_linux-goldfish: DNE
trusty_linux-goldfish: ignored
trusty/esm_linux-goldfish: DNE (trusty was ignored)
utopic_linux-goldfish: not-affected
vivid_linux-goldfish: not-affected
vivid/stable-phone-overlay_linux-goldfish: DNE
vivid/ubuntu-core_linux-goldfish: DNE
wily_linux-goldfish: not-affected
devel_linux-goldfish: not-affected

Patches_linux-grouper:
upstream_linux-grouper: released (3.17~rc1)
lucid_linux-grouper: DNE
precise_linux-grouper: DNE
trusty_linux-grouper: ignored
trusty/esm_linux-grouper: DNE (trusty was ignored)
utopic_linux-grouper: ignored (reached end-of-life)
vivid_linux-grouper: DNE
vivid/stable-phone-overlay_linux-grouper: DNE
vivid/ubuntu-core_linux-grouper: DNE
wily_linux-grouper: DNE
devel_linux-grouper: DNE

Patches_linux-maguro:
upstream_linux-maguro: released (3.17~rc1)
lucid_linux-maguro: DNE
precise_linux-maguro: DNE
trusty_linux-maguro: ignored
trusty/esm_linux-maguro: DNE (trusty was ignored)
utopic_linux-maguro: DNE
vivid_linux-maguro: DNE
vivid/stable-phone-overlay_linux-maguro: DNE
vivid/ubuntu-core_linux-maguro: DNE
wily_linux-maguro: DNE
devel_linux-maguro: DNE

Patches_linux-mako:
upstream_linux-mako: released (3.17~rc1)
lucid_linux-mako: DNE
precise_linux-mako: DNE
trusty_linux-mako: ignored
trusty/esm_linux-mako: DNE (trusty was ignored)
utopic_linux-mako: not-affected
vivid_linux-mako: not-affected
vivid/stable-phone-overlay_linux-mako: not-affected
vivid/ubuntu-core_linux-mako: DNE
wily_linux-mako: not-affected
devel_linux-mako: not-affected

Patches_linux-manta:
upstream_linux-manta: released (3.17~rc1)
lucid_linux-manta: DNE
precise_linux-manta: DNE
trusty_linux-manta: ignored
trusty/esm_linux-manta: DNE (trusty was ignored)
utopic_linux-manta: not-affected
vivid_linux-manta: not-affected
vivid/stable-phone-overlay_linux-manta: DNE
vivid/ubuntu-core_linux-manta: DNE
wily_linux-manta: not-affected
devel_linux-manta: not-affected

Patches_linux-flo:
upstream_linux-flo: released (3.17~rc1)
lucid_linux-flo: DNE
precise_linux-flo: DNE
trusty_linux-flo: ignored
trusty/esm_linux-flo: DNE (trusty was ignored)
utopic_linux-flo: not-affected
vivid_linux-flo: not-affected
vivid/stable-phone-overlay_linux-flo: not-affected
vivid/ubuntu-core_linux-flo: DNE
wily_linux-flo: not-affected
devel_linux-flo: not-affected

Patches_linux-lts-utopic:
upstream_linux-lts-utopic: released (3.17~rc1)
lucid_linux-lts-utopic: DNE
precise_linux-lts-utopic: DNE
trusty_linux-lts-utopic: not-affected (3.16.0-25.33~14.04.2)
trusty/esm_linux-lts-utopic: DNE (trusty was not-affected [3.16.0-25.33~14.04.2])
utopic_linux-lts-utopic: DNE
vivid_linux-lts-utopic: DNE
vivid/stable-phone-overlay_linux-lts-utopic: DNE
vivid/ubuntu-core_linux-lts-utopic: DNE
wily_linux-lts-utopic: DNE
devel_linux-lts-utopic: DNE

Patches_linux-lts-vivid:
upstream_linux-lts-vivid: released (3.17~rc1)
lucid_linux-lts-vivid: DNE
precise_linux-lts-vivid: DNE
trusty_linux-lts-vivid: not-affected (3.19.0-18.18~14.04.1)
trusty/esm_linux-lts-vivid: DNE (trusty was not-affected [3.19.0-18.18~14.04.1])
utopic_linux-lts-vivid: DNE
vivid_linux-lts-vivid: DNE
vivid/stable-phone-overlay_linux-lts-vivid: DNE
vivid/ubuntu-core_linux-lts-vivid: DNE
wily_linux-lts-vivid: DNE
devel_linux-lts-vivid: DNE

Patches_linux-raspi2:
upstream_linux-raspi2: released (3.17~rc1)
precise_linux-raspi2: DNE
trusty_linux-raspi2: DNE
trusty/esm_linux-raspi2: DNE
vivid_linux-raspi2: DNE
vivid/stable-phone-overlay_linux-raspi2: DNE
vivid/ubuntu-core_linux-raspi2: released (4.2.0-1014.21)
wily_linux-raspi2: not-affected (4.2.0-1008.12)
devel_linux-raspi2: not-affected (4.2.0-1014.21)