*** This bug is a security vulnerability *** You have been subscribed to a public security bug:
When aufs module is loaded with "modprobe aufs allow_userns", unprivileged user can use xattrs on the working directory or aufs mount over a fuse mount to create SUID/SGID binaries, thus escalating privileges. These errors are quite similar to those on overlayfs: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1535150 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1534961 aufs developers have already confirmed and issued a fix: https://sourceforge.net/p/aufs/mailman/message/34864744/ Specific reproducers can be found at: http://www.halfdog.net/Security/2016/AufsPrivilegeEscalationInUserNamespaces/ InvitedOnly AkgY8iqF # lsb_release -rd Description: Ubuntu 15.10 Release: 15.10 # apt-cache policy linux-image-4.2.0-27-generic linux-image-4.2.0-27-generic: Installed: 4.2.0-27.32 Candidate: 4.2.0-27.32 Version table: *** 4.2.0-27.32 0 500 http://archive.ubuntu.com/ubuntu/ wily-updates/main amd64 Packages 500 http://archive.ubuntu.com/ubuntu/ wily-security/main amd64 Packages 100 /var/lib/dpkg/status ** Affects: ubuntu-translations Importance: Undecided Status: New ** Affects: linux (Ubuntu) Importance: Low Status: Confirmed ** Affects: linux-armadaxp (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-flo (Ubuntu) Importance: Low Status: New ** Affects: linux-goldfish (Ubuntu) Importance: Low Status: New ** Affects: linux-lts-quantal (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-lts-raring (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-lts-saucy (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-lts-trusty (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-lts-utopic (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-lts-vivid (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-lts-wily (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-lts-xenial (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-mako (Ubuntu) Importance: Low Status: New ** Affects: linux-manta (Ubuntu) Importance: Low Status: Invalid ** Affects: linux-raspi2 (Ubuntu) Importance: Low Status: New ** Affects: linux-snapdragon (Ubuntu) Importance: Low Status: New ** Affects: linux-ti-omap4 (Ubuntu) Importance: Low Status: Invalid ** Affects: linux (Ubuntu Precise) Importance: Low Status: New ** Affects: linux-armadaxp (Ubuntu Precise) Importance: Low Status: New ** Affects: linux-flo (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-goldfish (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-lts-quantal (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-lts-raring (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-lts-saucy (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-lts-trusty (Ubuntu Precise) Importance: Low Status: New ** Affects: linux-lts-utopic (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-lts-vivid (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-lts-wily (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-lts-xenial (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-mako (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-manta (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-raspi2 (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-snapdragon (Ubuntu Precise) Importance: Low Status: Invalid ** Affects: linux-ti-omap4 (Ubuntu Precise) Importance: Low Status: New ** Affects: linux (Ubuntu Trusty) Importance: Low Status: New ** Affects: linux-armadaxp (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-flo (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-goldfish (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-lts-quantal (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-lts-raring (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-lts-saucy (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-lts-trusty (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-lts-utopic (Ubuntu Trusty) Importance: Low Status: New ** Affects: linux-lts-vivid (Ubuntu Trusty) Importance: Low Status: New ** Affects: linux-lts-wily (Ubuntu Trusty) Importance: Low Status: New ** Affects: linux-lts-xenial (Ubuntu Trusty) Importance: Low Status: New ** Affects: linux-mako (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-manta (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-raspi2 (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-snapdragon (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux-ti-omap4 (Ubuntu Trusty) Importance: Low Status: Invalid ** Affects: linux (Ubuntu Wily) Importance: Low Status: New ** Affects: linux-armadaxp (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-flo (Ubuntu Wily) Importance: Low Status: New ** Affects: linux-goldfish (Ubuntu Wily) Importance: Low Status: New ** Affects: linux-lts-quantal (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-lts-raring (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-lts-saucy (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-lts-trusty (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-lts-utopic (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-lts-vivid (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-lts-wily (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-lts-xenial (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-mako (Ubuntu Wily) Importance: Low Status: New ** Affects: linux-manta (Ubuntu Wily) Importance: Low Status: New ** Affects: linux-raspi2 (Ubuntu Wily) Importance: Low Status: New ** Affects: linux-snapdragon (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux-ti-omap4 (Ubuntu Wily) Importance: Low Status: Invalid ** Affects: linux (Ubuntu Xenial) Importance: Low Status: Confirmed ** Affects: linux-armadaxp (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-flo (Ubuntu Xenial) Importance: Low Status: New ** Affects: linux-goldfish (Ubuntu Xenial) Importance: Low Status: New ** Affects: linux-lts-quantal (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-lts-raring (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-lts-saucy (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-lts-trusty (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-lts-utopic (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-lts-vivid (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-lts-wily (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-lts-xenial (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-mako (Ubuntu Xenial) Importance: Low Status: New ** Affects: linux-manta (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux-raspi2 (Ubuntu Xenial) Importance: Low Status: New ** Affects: linux-snapdragon (Ubuntu Xenial) Importance: Low Status: New ** Affects: linux-ti-omap4 (Ubuntu Xenial) Importance: Low Status: Invalid ** Affects: linux (Ubuntu Yakkety) Importance: Low Status: Confirmed ** Affects: linux-armadaxp (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-flo (Ubuntu Yakkety) Importance: Low Status: New ** Affects: linux-goldfish (Ubuntu Yakkety) Importance: Low Status: New ** Affects: linux-lts-quantal (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-lts-raring (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-lts-saucy (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-lts-trusty (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-lts-utopic (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-lts-vivid (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-lts-wily (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-lts-xenial (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-mako (Ubuntu Yakkety) Importance: Low Status: New ** Affects: linux-manta (Ubuntu Yakkety) Importance: Low Status: Invalid ** Affects: linux-raspi2 (Ubuntu Yakkety) Importance: Low Status: New ** Affects: linux-snapdragon (Ubuntu Yakkety) Importance: Low Status: New ** Affects: linux-ti-omap4 (Ubuntu Yakkety) Importance: Low Status: Invalid ** Tags: kernel-cve-skip-description kernel-cve-tracking-bug kernel-da-key -- CVE-2016-2853 https://bugs.launchpad.net/bugs/1547400 You received this bug notification because you are a member of Ubuntu Translations Coordinators, which is subscribed to Ubuntu Translations. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-translations-coordinators Post to : ubuntu-translations-coordinators@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-translations-coordinators More help : https://help.launchpad.net/ListHelp