PublicDateAtUSN: 2011-12-23 Candidate: CVE-2011-4127 PublicDate: 2012-07-03 16:40:00 UTC References: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-4127 https://lkml.org/lkml/2004/8/12/218 https://lkml.org/lkml/2004/8/12/260 https://lkml.org/lkml/2011/12/22/270 https://ubuntu.com/security/notices/USN-1384-1 https://ubuntu.com/security/notices/USN-1388-1 https://ubuntu.com/security/notices/USN-1384-1 https://ubuntu.com/security/notices/USN-1389-1 https://ubuntu.com/security/notices/USN-1405-1 Description: The Linux kernel before 3.2.2 does not properly restrict SG_IO ioctl calls, which allows local users to bypass intended restrictions on disk read and write operations by sending a SCSI command to (1) a partition block device or (2) an LVM volume. Ubuntu-Description: Paolo Bonzini discovered a flaw in Linux's handling of the SG_IO ioctl command. A local user, or user in a VM could exploit this flaw to bypass restrictions and gain read/write access to all data on the affected block device. Notes: apw> This seems to be seens as the right thing to do, but not so late apw> in 3.2, expect to see something applied in the early merge window apw> https://lkml.org/lkml/2011/12/22/366 apw> The fixes have now hit mainline, there is a strong possibility that apw> when these are applied to older releases we will get functionality apw> regressions, will get them on precise as soon as possible. Bugs: https://bugzilla.redhat.com/show_bug.cgi?id=752375 https://launchpad.net/bugs/911397 Priority: medium Discovered-by: Paolo Bonzini Assigned-to: CVSS: Patches_linux: break-fix: - 577ebb374c78314ac4617242f509e2f5e7156649 break-fix: - 0bfc96cb77224736dfa35c3c555d37b3646ef35e break-fix: - ec8013beddd717d1740cfefb1a9b900deef85462 upstream_linux: released (3.3~rc1) hardy_linux: ignored (was deferred now end-of-life) lucid_linux: released (2.6.32-39.86) maverick_linux: ignored (reached end-of-life) natty_linux: ignored (reached end-of-life) oneiric_linux: released (3.0.0-16.29) precise_linux: not-affected (3.2.0-12.20) quantal_linux: not-affected (3.4.0-1.1) raring_linux: not-affected (3.7.0-0.5) trusty_linux: not-affected (3.11.0-12.19) trusty/esm_linux: not-affected (3.11.0-12.19) utopic_linux: not-affected (3.13.0-24.46) vivid_linux: not-affected (3.16.0-23.31) vivid/ubuntu-core_linux: not-affected (3.16.0-23.31) vivid/stable-phone-overlay_linux: DNE wily_linux: not-affected (3.19.0-15.15) xenial_linux: not-affected (4.2.0-16.19) esm-infra/xenial_linux: not-affected (4.2.0-16.19) yakkety_linux: not-affected (4.4.0-21.37) devel_linux: not-affected (4.4.0-21.37) Patches_linux-ec2: upstream_linux-ec2: released (3.3~rc1) hardy_linux-ec2: DNE lucid_linux-ec2: released (2.6.32-343.45) maverick_linux-ec2: ignored (binary supplied by "linux" now) natty_linux-ec2: DNE oneiric_linux-ec2: DNE precise_linux-ec2: DNE quantal_linux-ec2: DNE raring_linux-ec2: DNE trusty_linux-ec2: DNE trusty/esm_linux-ec2: DNE utopic_linux-ec2: DNE vivid_linux-ec2: DNE vivid/ubuntu-core_linux-ec2: DNE vivid/stable-phone-overlay_linux-ec2: DNE wily_linux-ec2: DNE xenial_linux-ec2: DNE yakkety_linux-ec2: DNE devel_linux-ec2: DNE Patches_linux-mvl-dove: upstream_linux-mvl-dove: released (3.3~rc1) hardy_linux-mvl-dove: DNE lucid_linux-mvl-dove: not-affected (no virtualisation on ARM) maverick_linux-mvl-dove: not-affected (no virtualisation on ARM) natty_linux-mvl-dove: DNE oneiric_linux-mvl-dove: DNE precise_linux-mvl-dove: DNE quantal_linux-mvl-dove: DNE raring_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/ubuntu-core_linux-mvl-dove: DNE vivid/stable-phone-overlay_linux-mvl-dove: DNE wily_linux-mvl-dove: DNE xenial_linux-mvl-dove: DNE yakkety_linux-mvl-dove: DNE devel_linux-mvl-dove: DNE Patches_linux-ti-omap4: upstream_linux-ti-omap4: released (3.3~rc1) hardy_linux-ti-omap4: DNE lucid_linux-ti-omap4: DNE maverick_linux-ti-omap4: not-affected (no virtualisation on ARM) natty_linux-ti-omap4: not-affected (no virtualisation on ARM) oneiric_linux-ti-omap4: not-affected (no virtualisation on ARM) precise_linux-ti-omap4: not-affected (no virtualisation on ARM) quantal_linux-ti-omap4: not-affected (no virtualisation on ARM) raring_linux-ti-omap4: not-affected (no virtualisation on ARM) trusty_linux-ti-omap4: DNE trusty/esm_linux-ti-omap4: DNE utopic_linux-ti-omap4: DNE vivid_linux-ti-omap4: DNE vivid/ubuntu-core_linux-ti-omap4: DNE vivid/stable-phone-overlay_linux-ti-omap4: DNE wily_linux-ti-omap4: DNE xenial_linux-ti-omap4: DNE yakkety_linux-ti-omap4: DNE devel_linux-ti-omap4: DNE Patches_linux-lts-backport-maverick: upstream_linux-lts-backport-maverick: released (3.3~rc1) hardy_linux-lts-backport-maverick: DNE lucid_linux-lts-backport-maverick: ignored (reached end-of-life) maverick_linux-lts-backport-maverick: DNE natty_linux-lts-backport-maverick: DNE oneiric_linux-lts-backport-maverick: DNE precise_linux-lts-backport-maverick: DNE quantal_linux-lts-backport-maverick: DNE raring_linux-lts-backport-maverick: DNE trusty_linux-lts-backport-maverick: DNE trusty/esm_linux-lts-backport-maverick: DNE utopic_linux-lts-backport-maverick: DNE vivid_linux-lts-backport-maverick: DNE vivid/ubuntu-core_linux-lts-backport-maverick: DNE vivid/stable-phone-overlay_linux-lts-backport-maverick: DNE wily_linux-lts-backport-maverick: DNE xenial_linux-lts-backport-maverick: DNE yakkety_linux-lts-backport-maverick: DNE devel_linux-lts-backport-maverick: DNE Patches_linux-fsl-imx51: upstream_linux-fsl-imx51: released (3.3~rc1) hardy_linux-fsl-imx51: DNE lucid_linux-fsl-imx51: not-affected (no virtualisation on ARM) maverick_linux-fsl-imx51: DNE natty_linux-fsl-imx51: DNE oneiric_linux-fsl-imx51: DNE precise_linux-fsl-imx51: DNE quantal_linux-fsl-imx51: DNE raring_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/ubuntu-core_linux-fsl-imx51: DNE vivid/stable-phone-overlay_linux-fsl-imx51: DNE wily_linux-fsl-imx51: DNE xenial_linux-fsl-imx51: DNE yakkety_linux-fsl-imx51: DNE devel_linux-fsl-imx51: DNE Patches_linux-lts-backport-natty: upstream_linux-lts-backport-natty: released (3.3~rc1) hardy_linux-lts-backport-natty: DNE lucid_linux-lts-backport-natty: ignored (reached end-of-life) maverick_linux-lts-backport-natty: DNE natty_linux-lts-backport-natty: DNE oneiric_linux-lts-backport-natty: DNE precise_linux-lts-backport-natty: DNE quantal_linux-lts-backport-natty: DNE raring_linux-lts-backport-natty: DNE trusty_linux-lts-backport-natty: DNE trusty/esm_linux-lts-backport-natty: DNE utopic_linux-lts-backport-natty: DNE vivid_linux-lts-backport-natty: DNE vivid/ubuntu-core_linux-lts-backport-natty: DNE vivid/stable-phone-overlay_linux-lts-backport-natty: DNE wily_linux-lts-backport-natty: DNE xenial_linux-lts-backport-natty: DNE yakkety_linux-lts-backport-natty: DNE devel_linux-lts-backport-natty: DNE Patches_linux-lts-backport-oneiric: upstream_linux-lts-backport-oneiric: released (3.3~rc1) hardy_linux-lts-backport-oneiric: DNE lucid_linux-lts-backport-oneiric: released (3.0.0-16.29~lucid1) maverick_linux-lts-backport-oneiric: DNE natty_linux-lts-backport-oneiric: DNE oneiric_linux-lts-backport-oneiric: DNE precise_linux-lts-backport-oneiric: DNE quantal_linux-lts-backport-oneiric: DNE raring_linux-lts-backport-oneiric: DNE trusty_linux-lts-backport-oneiric: DNE trusty/esm_linux-lts-backport-oneiric: DNE utopic_linux-lts-backport-oneiric: DNE vivid_linux-lts-backport-oneiric: DNE vivid/ubuntu-core_linux-lts-backport-oneiric: DNE vivid/stable-phone-overlay_linux-lts-backport-oneiric: DNE wily_linux-lts-backport-oneiric: DNE xenial_linux-lts-backport-oneiric: DNE yakkety_linux-lts-backport-oneiric: DNE devel_linux-lts-backport-oneiric: DNE Patches_linux-armadaxp: upstream_linux-armadaxp: released (3.3~rc1) hardy_linux-armadaxp: DNE lucid_linux-armadaxp: DNE natty_linux-armadaxp: DNE oneiric_linux-armadaxp: DNE precise_linux-armadaxp: not-affected (3.2.0-1600.1) quantal_linux-armadaxp: not-affected (3.2.0-1600.1) raring_linux-armadaxp: DNE trusty_linux-armadaxp: DNE trusty/esm_linux-armadaxp: DNE utopic_linux-armadaxp: DNE vivid_linux-armadaxp: DNE vivid/ubuntu-core_linux-armadaxp: DNE vivid/stable-phone-overlay_linux-armadaxp: DNE wily_linux-armadaxp: DNE xenial_linux-armadaxp: DNE yakkety_linux-armadaxp: DNE devel_linux-armadaxp: DNE Patches_linux-lts-quantal: upstream_linux-lts-quantal: released (3.3~rc1) hardy_linux-lts-quantal: DNE lucid_linux-lts-quantal: DNE oneiric_linux-lts-quantal: DNE precise_linux-lts-quantal: not-affected (3.5.0-18.29~precise1) quantal_linux-lts-quantal: DNE raring_linux-lts-quantal: DNE trusty_linux-lts-quantal: DNE trusty/esm_linux-lts-quantal: DNE utopic_linux-lts-quantal: DNE vivid_linux-lts-quantal: DNE vivid/ubuntu-core_linux-lts-quantal: DNE vivid/stable-phone-overlay_linux-lts-quantal: DNE wily_linux-lts-quantal: DNE xenial_linux-lts-quantal: DNE yakkety_linux-lts-quantal: DNE devel_linux-lts-quantal: DNE Patches_linux-lts-raring: upstream_linux-lts-raring: released (3.3~rc1) hardy_linux-lts-raring: DNE lucid_linux-lts-raring: DNE oneiric_linux-lts-raring: DNE precise_linux-lts-raring: not-affected (3.8.0-19.30~precise1) quantal_linux-lts-raring: DNE raring_linux-lts-raring: DNE trusty_linux-lts-raring: DNE trusty/esm_linux-lts-raring: DNE utopic_linux-lts-raring: DNE vivid_linux-lts-raring: DNE vivid/ubuntu-core_linux-lts-raring: DNE vivid/stable-phone-overlay_linux-lts-raring: DNE wily_linux-lts-raring: DNE xenial_linux-lts-raring: DNE yakkety_linux-lts-raring: DNE devel_linux-lts-raring: DNE Patches_linux-goldfish: upstream_linux-goldfish: released (3.3~rc1) lucid_linux-goldfish: DNE precise_linux-goldfish: DNE quantal_linux-goldfish: DNE saucy_linux-goldfish: ignored trusty_linux-goldfish: not-affected (3.4.0-1.9) trusty/esm_linux-goldfish: DNE (trusty was not-affected [3.4.0-1.9]) utopic_linux-goldfish: not-affected (3.4.0-3.14) vivid_linux-goldfish: not-affected (3.4.0-4.23) vivid/ubuntu-core_linux-goldfish: DNE vivid/stable-phone-overlay_linux-goldfish: DNE wily_linux-goldfish: not-affected (3.4.0-4.24) xenial_linux-goldfish: not-affected (3.4.0-4.27) yakkety_linux-goldfish: not-affected (3.4.0-4.27) devel_linux-goldfish: not-affected (3.4.0-4.23) Patches_linux-grouper: upstream_linux-grouper: released (3.3~rc1) lucid_linux-grouper: DNE precise_linux-grouper: DNE quantal_linux-grouper: DNE saucy_linux-grouper: ignored trusty_linux-grouper: ignored (reached end-of-life) trusty/esm_linux-grouper: DNE (trusty was ignored [reached end-of-life]) utopic_linux-grouper: ignored (reached end-of-life) vivid_linux-grouper: DNE vivid/ubuntu-core_linux-grouper: DNE vivid/stable-phone-overlay_linux-grouper: DNE wily_linux-grouper: DNE xenial_linux-grouper: DNE yakkety_linux-grouper: DNE devel_linux-grouper: DNE Patches_linux-maguro: upstream_linux-maguro: released (3.3~rc1) lucid_linux-maguro: DNE precise_linux-maguro: DNE quantal_linux-maguro: DNE saucy_linux-maguro: ignored trusty_linux-maguro: ignored (reached end-of-life) trusty/esm_linux-maguro: DNE (trusty was ignored [reached end-of-life]) utopic_linux-maguro: DNE vivid_linux-maguro: DNE vivid/ubuntu-core_linux-maguro: DNE vivid/stable-phone-overlay_linux-maguro: DNE wily_linux-maguro: DNE xenial_linux-maguro: DNE yakkety_linux-maguro: DNE devel_linux-maguro: DNE Patches_linux-mako: upstream_linux-mako: released (3.3~rc1) lucid_linux-mako: DNE precise_linux-mako: DNE quantal_linux-mako: DNE saucy_linux-mako: ignored trusty_linux-mako: not-affected (3.4.0-3.21) trusty/esm_linux-mako: DNE (trusty was not-affected [3.4.0-3.21]) utopic_linux-mako: not-affected (3.4.0-5.28) vivid_linux-mako: not-affected (3.4.0-5.34) vivid/ubuntu-core_linux-mako: DNE vivid/stable-phone-overlay_linux-mako: not-affected wily_linux-mako: not-affected (3.4.0-6.37) xenial_linux-mako: not-affected (3.4.0-7.40) yakkety_linux-mako: not-affected (3.4.0-5.34) devel_linux-mako: not-affected (3.4.0-5.34) Patches_linux-manta: upstream_linux-manta: released (3.3~rc1) lucid_linux-manta: DNE precise_linux-manta: DNE quantal_linux-manta: DNE saucy_linux-manta: ignored trusty_linux-manta: not-affected (3.4.0-4.19) trusty/esm_linux-manta: DNE (trusty was not-affected [3.4.0-4.19]) utopic_linux-manta: not-affected (3.4.0-6.25) vivid_linux-manta: not-affected (3.4.0-6.29) vivid/ubuntu-core_linux-manta: DNE vivid/stable-phone-overlay_linux-manta: DNE wily_linux-manta: not-affected (3.4.0-7.32) xenial_linux-manta: DNE yakkety_linux-manta: DNE devel_linux-manta: DNE Patches_linux-flo: upstream_linux-flo: released (3.3~rc1) lucid_linux-flo: DNE precise_linux-flo: DNE quantal_linux-flo: DNE saucy_linux-flo: DNE trusty_linux-flo: not-affected (3.4.0-1.3) trusty/esm_linux-flo: DNE (trusty was not-affected [3.4.0-1.3]) utopic_linux-flo: not-affected (3.4.0-3.10) vivid_linux-flo: not-affected (3.4.0-3.15) vivid/ubuntu-core_linux-flo: DNE vivid/stable-phone-overlay_linux-flo: not-affected wily_linux-flo: not-affected (3.4.0-4.18) xenial_linux-flo: not-affected (3.4.0-5.22) yakkety_linux-flo: not-affected (3.4.0-3.15) devel_linux-flo: not-affected (3.4.0-3.15) saucy_linux: not-affected (3.9.0-0.2) saucy_linux-armadaxp: DNE saucy_linux-ec2: DNE saucy_linux-fsl-imx51: DNE saucy_linux-lts-backport-maverick: DNE saucy_linux-lts-backport-natty: DNE saucy_linux-lts-backport-oneiric: DNE saucy_linux-lts-quantal: DNE saucy_linux-lts-raring: DNE saucy_linux-mvl-dove: DNE saucy_linux-ti-omap4: not-affected (3.5.0-223.34) Patches_linux-lts-trusty: upstream_linux-lts-trusty: released (3.3~rc1) lucid_linux-lts-trusty: DNE precise_linux-lts-trusty: not-affected (3.13.0-24.46~precise1) saucy_linux-lts-trusty: DNE trusty_linux-lts-trusty: DNE trusty/esm_linux-lts-trusty: DNE utopic_linux-lts-trusty: DNE vivid_linux-lts-trusty: DNE vivid/ubuntu-core_linux-lts-trusty: DNE vivid/stable-phone-overlay_linux-lts-trusty: DNE wily_linux-lts-trusty: DNE xenial_linux-lts-trusty: DNE yakkety_linux-lts-trusty: DNE devel_linux-lts-trusty: DNE Patches_linux-lts-utopic: upstream_linux-lts-utopic: released (3.3~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/ubuntu-core_linux-lts-utopic: DNE vivid/stable-phone-overlay_linux-lts-utopic: DNE wily_linux-lts-utopic: DNE xenial_linux-lts-utopic: DNE yakkety_linux-lts-utopic: DNE devel_linux-lts-utopic: DNE Patches_linux-lts-vivid: upstream_linux-lts-vivid: released (3.3~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/ubuntu-core_linux-lts-vivid: DNE vivid/stable-phone-overlay_linux-lts-vivid: DNE wily_linux-lts-vivid: DNE xenial_linux-lts-vivid: DNE yakkety_linux-lts-vivid: DNE devel_linux-lts-vivid: DNE Patches_linux-lts-wily: upstream_linux-lts-wily: released (3.3~rc1) precise_linux-lts-wily: DNE trusty_linux-lts-wily: not-affected (4.2.0-18.22~14.04.1) trusty/esm_linux-lts-wily: DNE (trusty was not-affected [4.2.0-18.22~14.04.1]) vivid_linux-lts-wily: DNE vivid/ubuntu-core_linux-lts-wily: DNE vivid/stable-phone-overlay_linux-lts-wily: DNE wily_linux-lts-wily: DNE xenial_linux-lts-wily: DNE yakkety_linux-lts-wily: DNE devel_linux-lts-wily: DNE Patches_linux-raspi2: upstream_linux-raspi2: released (3.3~rc1) precise_linux-raspi2: DNE trusty_linux-raspi2: DNE trusty/esm_linux-raspi2: DNE vivid_linux-raspi2: DNE vivid/ubuntu-core_linux-raspi2: released (4.2.0-1014.21) vivid/stable-phone-overlay_linux-raspi2: DNE wily_linux-raspi2: not-affected (4.2.0-1008.12) xenial_linux-raspi2: not-affected (4.2.0-1013.19) yakkety_linux-raspi2: not-affected (4.4.0-1009.10) devel_linux-raspi2: not-affected (4.4.0-1009.10) Patches_linux-lts-xenial: upstream_linux-lts-xenial: released (3.3~rc1) precise_linux-lts-xenial: DNE trusty_linux-lts-xenial: not-affected (4.4.0-13.29~14.04.1) trusty/esm_linux-lts-xenial: not-affected (4.4.0-13.29~14.04.1) vivid_linux-lts-xenial: DNE vivid/ubuntu-core_linux-lts-xenial: DNE vivid/stable-phone-overlay_linux-lts-xenial: DNE wily_linux-lts-xenial: DNE xenial_linux-lts-xenial: DNE yakkety_linux-lts-xenial: DNE devel_linux-lts-xenial: DNE Patches_linux-snapdragon: upstream_linux-snapdragon: released (3.3~rc1) precise_linux-snapdragon: DNE trusty_linux-snapdragon: DNE trusty/esm_linux-snapdragon: DNE vivid/ubuntu-core_linux-snapdragon: DNE vivid/stable-phone-overlay_linux-snapdragon: DNE wily_linux-snapdragon: DNE xenial_linux-snapdragon: not-affected (4.4.0-1012.12) yakkety_linux-snapdragon: not-affected (4.4.0-1012.12) devel_linux-snapdragon: not-affected (4.4.0-1012.12)