{"id":"USN-2853-1","summary":"linux-lts-wily vulnerabilities","details":"Felix Wilhelm discovered a race condition in the Xen paravirtualized\ndrivers which can cause double fetch vulnerabilities. An attacker in the\nparavirtualized guest could exploit this flaw to cause a denial of service\n(crash the host) or potentially execute arbitrary code on the host.\n(CVE-2015-8550)\n\nKonrad Rzeszutek Wilk discovered the Xen PCI backend driver does not\nperform consistency checks on the device's state. An attacker could exploit this\nflaw to cause a denial of service (NULL dereference) on the host.\n(CVE-2015-8551)\n\nKonrad Rzeszutek Wilk discovered the Xen PCI backend driver does not\nperform consistency checks on the device's state. An attacker could exploit this\nflaw to cause a denial of service by flooding the logging system with\nWARN() messages causing the initial domain to exhaust disk space.\n(CVE-2015-8552)\n\nJann Horn discovered a ptrace issue with user namespaces in the Linux\nkernel. The namespace owner could potentially exploit this flaw by ptracing\na root owned process entering the user namespace to elevate its privileges\nand potentially gain access outside of the namespace.\n(http://bugs.launchpad.net/bugs/1527374, CVE-2015-8709)\n","modified":"2026-04-27T15:17:30.519104071Z","published":"2015-12-20T12:07:13Z","related":["UBUNTU-CVE-2015-8550","UBUNTU-CVE-2015-8551","UBUNTU-CVE-2015-8552","UBUNTU-CVE-2015-8709"],"upstream":["CVE-2015-8550","CVE-2015-8551","CVE-2015-8552","CVE-2015-8709","UBUNTU-CVE-2015-8550","UBUNTU-CVE-2015-8551","UBUNTU-CVE-2015-8552","UBUNTU-CVE-2015-8709"],"references":[{"type":"ADVISORY","url":"https://ubuntu.com/security/notices/USN-2853-1"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-8550"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-8551"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-8552"},{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2015-8709"}],"affected":[{"package":{"name":"linux-lts-wily","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/linux-lts-wily@4.2.0-22.27~14.04.1?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.2.0-22.27~14.04.1"}]}],"versions":["4.2.0-18.22~14.04.1","4.2.0-19.23~14.04.1","4.2.0-21.25~14.04.1"],"ecosystem_specific":{"binaries":[{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"block-modules-4.2.0-22-generic-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"block-modules-4.2.0-22-generic-lpae-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"block-modules-4.2.0-22-powerpc-e500mc-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"block-modules-4.2.0-22-powerpc-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"block-modules-4.2.0-22-powerpc64-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"crypto-modules-4.2.0-22-generic-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"crypto-modules-4.2.0-22-generic-lpae-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"crypto-modules-4.2.0-22-powerpc-e500mc-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"crypto-modules-4.2.0-22-powerpc-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"crypto-modules-4.2.0-22-powerpc64-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fat-modules-4.2.0-22-generic-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fat-modules-4.2.0-22-generic-lpae-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fat-modules-4.2.0-22-powerpc-e500mc-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fat-modules-4.2.0-22-powerpc-smp-di"},{"binary_name":"fat-modules-4.2.0-22-powerpc64-smp-di","binary_version":"4.2.0-22.27~14.04.1"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fb-modules-4.2.0-22-generic-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"firewire-core-modules-4.2.0-22-generic-di"},{"binary_name":"firewire-core-modules-4.2.0-22-powerpc-e500mc-di","binary_version":"4.2.0-22.27~14.04.1"},{"binary_name":"firewire-core-modules-4.2.0-22-powerpc-smp-di","binary_version":"4.2.0-22.27~14.04.1"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"firewire-core-modules-4.2.0-22-powerpc64-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"floppy-modules-4.2.0-22-generic-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"floppy-modules-4.2.0-22-powerpc-e500mc-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"floppy-modules-4.2.0-22-powerpc-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"floppy-modules-4.2.0-22-powerpc64-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-core-modules-4.2.0-22-generic-di"},{"binary_name":"fs-core-modules-4.2.0-22-generic-lpae-di","binary_version":"4.2.0-22.27~14.04.1"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-core-modules-4.2.0-22-powerpc-e500mc-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-core-modules-4.2.0-22-powerpc-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-core-modules-4.2.0-22-powerpc64-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-secondary-modules-4.2.0-22-generic-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-secondary-modules-4.2.0-22-generic-lpae-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-secondary-modules-4.2.0-22-powerpc-e500mc-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"fs-secondary-modules-4.2.0-22-powerpc-smp-di"},{"binary_name":"fs-secondary-modules-4.2.0-22-powerpc64-smp-di","binary_version":"4.2.0-22.27~14.04.1"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"input-modules-4.2.0-22-generic-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"input-modules-4.2.0-22-generic-lpae-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"input-modules-4.2.0-22-powerpc-e500mc-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"input-modules-4.2.0-22-powerpc-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"input-modules-4.2.0-22-powerpc64-smp-di"},{"binary_version":"4.2.0-22.27~14.04.1","binary_name":"ipmi-modules-4.2.0-22-generic-di"},{"binary_version":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