** Description changed: - http://www.openwall.com/lists/oss-security/2015/12/23/5 - - https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=acff81ec2c79492b180fade3c2894425cd35a545 - - This allows unprivileged users to change attributes on root-owned files. + The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel + through 4.3.3 attempts to merge distinct setattr operations, which + allows local users to bypass intended access restrictions and modify the + attributes of arbitrary overlay files via a crafted application.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-armadaxp in Ubuntu. https://bugs.launchpad.net/bugs/1528904 Title: overlay setattr vulnerability Status in linux package in Ubuntu: Triaged Status in linux-armadaxp package in Ubuntu: New Status in linux-flo package in Ubuntu: New Status in linux-goldfish package in Ubuntu: New Status in linux-lts-quantal package in Ubuntu: New Status in linux-lts-raring package in Ubuntu: New Status in linux-lts-saucy package in Ubuntu: New Status in linux-lts-trusty package in Ubuntu: New Status in linux-lts-utopic package in Ubuntu: New Status in linux-lts-vivid package in Ubuntu: New Status in linux-lts-wily package in Ubuntu: New Status in linux-mako package in Ubuntu: New Status in linux-manta package in Ubuntu: New Status in linux-raspi2 package in Ubuntu: New Status in linux-ti-omap4 package in Ubuntu: New Bug description: The ovl_setattr function in fs/overlayfs/inode.c in the Linux kernel through 4.3.3 attempts to merge distinct setattr operations, which allows local users to bypass intended access restrictions and modify the attributes of arbitrary overlay files via a crafted application. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1528904/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
