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USN-3377-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3377-1 3rd August, 2017 linux, linux-raspi2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel linux-raspi2 – Linux kernel for Raspberry Pi 2 Details Fan Wu and Shixiong Zhao discovered a race condition between inotify eventsand vfs rename operations in the Linux kernel. An unprivileged localattacker could use this to cause a denial of service (system crash) orexecute arbitrary code. (CVE-2017-7533) It was discovered that the Linux kernel did not properly restrictRLIMIT_STACK size. A local attacker could use this in conjunction withanother vulnerability to possibly execute arbitrary code.(CVE-2017-1000365) 李强 discovered that the Virtio GPU driver in the Linux kernel did notproperly free memory in some situations. A local attacker could use this [ more… ]

USN-3378-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3378-1 3rd August, 2017 linux, linux-aws, linux-gke, linux-raspi2, linux-snapdragon vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel linux-aws – Linux kernel for Amazon Web Services (AWS) systems linux-gke – Linux kernel for Google Container Engine (GKE) systems linux-raspi2 – Linux kernel for Raspberry Pi 2 linux-snapdragon – Linux kernel for Snapdragon processors Details Fan Wu and Shixiong Zhao discovered a race condition between inotify eventsand vfs rename operations in the Linux kernel. An unprivileged localattacker could use this to cause a denial of service (system crash) orexecute arbitrary code. (CVE-2017-7533) It was discovered that the Linux kernel did not properly restrictRLIMIT_STACK size. A local attacker could use this in conjunction [ more… ]

USN-3377-2: Linux kernel (HWE) vulnerabilities Ubuntu Security Notice USN-3377-2 3rd August, 2017 linux-hwe vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 16.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux-hwe – Linux hardware enablement (HWE) kernel Details USN-3377-1 fixed vulnerabilities in the Linux kernel for Ubuntu 17.04.This update provides the corresponding updates for the LinuxHardware Enablement (HWE) kernel from Ubuntu 17.04 for Ubuntu16.04 LTS. Fan Wu and Shixiong Zhao discovered a race condition between inotify eventsand vfs rename operations in the Linux kernel. An unprivileged localattacker could use this to cause a denial of service (system crash) orexecute arbitrary code. (CVE-2017-7533) It was discovered that the Linux kernel did not properly restrictRLIMIT_STACK size. A local attacker could use this in conjunction withanother vulnerability to possibly execute arbitrary code.(CVE-2017-1000365) 李强 [ more… ]