** Summary changed: - Fix-compat_sys_recvmmsg-on-x32-archs + CVE-2014-0038
** Description changed: - The timeout pointer parameter is provided by userland (hence the __user - annotation) but for x32 syscalls it's simply cast to a kernel pointer - and is passed to __sys_recvmmsg which will eventually directly - dereference it for both reading and writing. Other callers to - __sys_recvmmsg properly copy from userland to the kernel first. The - impact is a sort of arbitrary kernel write-where-what primitive by - unprivileged users where the to-be-written area must contain valid - timespec data initially (the first 64 bit long field must be positive - and the second one must be < 1G). + The compat_sys_recvmmsg function in net/compat.c in the Linux kernel before + 3.13.2, when CONFIG_X86_X32 is enabled, allows local users to gain + privileges via a recvmmsg system call with a crafted timeout pointer + parameter. Break-Fix: ee4fa23c4bfcc635d077a9633d405610de45bc70 2def2ef2ae5f3990aabdbe8a755911902707d268 -- 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/1274349 Title: CVE-2014-0038 Status in linux package in Ubuntu: Fix Released Status in linux-armadaxp package in Ubuntu: Invalid Status in linux-ec2 package in Ubuntu: Invalid Status in linux-fsl-imx51 package in Ubuntu: Invalid Status in linux-lts-quantal package in Ubuntu: Invalid Status in linux-lts-raring package in Ubuntu: Invalid Status in linux-lts-saucy package in Ubuntu: Invalid Status in linux-mvl-dove package in Ubuntu: Invalid Status in linux-ti-omap4 package in Ubuntu: Invalid Status in linux source package in Lucid: Invalid Status in linux-armadaxp source package in Lucid: Invalid Status in linux-ec2 source package in Lucid: Invalid Status in linux-fsl-imx51 source package in Lucid: Invalid Status in linux-lts-quantal source package in Lucid: Invalid Status in linux-lts-raring source package in Lucid: Invalid Status in linux-lts-saucy source package in Lucid: Invalid Status in linux-mvl-dove source package in Lucid: Invalid Status in linux-ti-omap4 source package in Lucid: Invalid Status in linux source package in Precise: Invalid Status in linux-armadaxp source package in Precise: Invalid Status in linux-ec2 source package in Precise: Invalid Status in linux-fsl-imx51 source package in Precise: Invalid Status in linux-lts-quantal source package in Precise: Invalid Status in linux-lts-raring source package in Precise: Fix Released Status in linux-lts-saucy source package in Precise: Fix Released Status in linux-mvl-dove source package in Precise: Invalid Status in linux-ti-omap4 source package in Precise: Invalid Status in linux source package in Quantal: Invalid Status in linux-armadaxp source package in Quantal: Invalid Status in linux-ec2 source package in Quantal: Invalid Status in linux-fsl-imx51 source package in Quantal: Invalid Status in linux-lts-quantal source package in Quantal: Invalid Status in linux-lts-raring source package in Quantal: Invalid Status in linux-lts-saucy source package in Quantal: Invalid Status in linux-mvl-dove source package in Quantal: Invalid Status in linux-ti-omap4 source package in Quantal: Invalid Status in linux source package in Saucy: Fix Released Status in linux-armadaxp source package in Saucy: Invalid Status in linux-ec2 source package in Saucy: Invalid Status in linux-fsl-imx51 source package in Saucy: Invalid Status in linux-lts-quantal source package in Saucy: Invalid Status in linux-lts-raring source package in Saucy: Invalid Status in linux-lts-saucy source package in Saucy: Invalid Status in linux-mvl-dove source package in Saucy: Invalid Status in linux-ti-omap4 source package in Saucy: Invalid Status in linux source package in Trusty: Fix Released Status in linux-armadaxp source package in Trusty: Invalid Status in linux-ec2 source package in Trusty: Invalid Status in linux-fsl-imx51 source package in Trusty: Invalid Status in linux-lts-quantal source package in Trusty: Invalid Status in linux-lts-raring source package in Trusty: Invalid Status in linux-lts-saucy source package in Trusty: Invalid Status in linux-mvl-dove source package in Trusty: Invalid Status in linux-ti-omap4 source package in Trusty: Invalid Bug description: The compat_sys_recvmmsg function in net/compat.c in the Linux kernel before 3.13.2, when CONFIG_X86_X32 is enabled, allows local users to gain privileges via a recvmmsg system call with a crafted timeout pointer parameter. Break-Fix: ee4fa23c4bfcc635d077a9633d405610de45bc70 2def2ef2ae5f3990aabdbe8a755911902707d268 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1274349/+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
