ubuntu-usn

USN-3323-2: GNU C Library vulnerability Ubuntu Security Notice USN-3323-2 29th June, 2017 eglibc vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Gnu C library could be made to run programs as an administrator. Software description eglibc – GNU C Library Details USN-3323-1 fixed a vulnerability in the GNU C Library. This update provides thecorresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that the GNU C library did not properly handle memory when processing environment variables for setuid programs. A local attacker could use this in combination with another vulnerability to gain administrative privileges. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 12.04 LTS: libc6 2.15-0ubuntu10.20 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. After a standard system update [ more… ]

USN-3342-2: Linux kernel (HWE) vulnerabilities Ubuntu Security Notice USN-3342-2 29th June, 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-3342-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.10.This update provides the corresponding updates for the Linux HardwareEnablement (HWE) kernel from Ubuntu 16.10 for Ubuntu 16.04 LTS. USN-3333-1 fixed a vulnerability in the Linux kernel. However, thatfix introduced regressions for some Java applications. This updateaddresses the issue. We apologize for the inconvenience. It was discovered that a use-after-free flaw existed in the filesystemencryption subsystem in the Linux kernel. A local attacker could use thisto cause a denial of service (system crash). (CVE-2017-7374) Roee Hay discovered that the parallel port printer driver [ more… ]

USN-3345-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3345-1 29th June, 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 USN 3324-1 fixed a vulnerability in the Linux kernel. However, thatfix introduced regressions for some Java applications. This updateaddresses the issue. We apologize for the inconvenience. Roee Hay discovered that the parallel port printer driver in the Linuxkernel did not properly bounds check passed arguments. A local attackerwith write access to the kernel command line arguments could use this toexecute arbitrary code. (CVE-2017-1000363) It was discovered that a double-free vulnerability existed in the IPv4stack of the Linux kernel. An attacker could use this to cause a denial ofservice [ more… ]

USN-3343-2: Linux kernel (Trusty HWE) vulnerabilities Ubuntu Security Notice USN-3343-2 29th June, 2017 linux-lts-trusty vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux-lts-trusty – Linux hardware enablement kernel from Trusty for Precise Details USN 3343-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04LTS. This update provides the corresponding updates for the LinuxHardware Enablement (HWE) kernel from Ubuntu 14.04 LTS for Ubuntu12.04 ESM. USN 3335-2 fixed a vulnerability in the Linux kernel. However, thatfix introduced regressions for some Java applications. This updateaddresses the issue. We apologize for the inconvenience. It was discovered that a use-after-free vulnerability in the core voltageregulator driver of the Linux kernel. A local attacker could use this tocause a denial of service or possibly execute arbitrary code.(CVE-2014-9940) [ more… ]

USN-3338-2: Linux kernel regression Ubuntu Security Notice USN-3338-2 29th June, 2017 linux regression A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel Details USN-3338-1 fixed vulnerabilities in the Linux kernel. However, the fixfor CVE-2017-1000364 introduced regressions for some Java applications.This update addresses the issue. We apologize for the inconvenience. Original advisory details: It was discovered that the stack guard page for processes in the Linux kernel was not sufficiently large enough to prevent overlapping with the heap. An attacker could leverage this with another vulnerability to execute arbitrary code and gain administrative privileges (CVE-2017-1000364) Jesse Hertz and Tim Newsham discovered that the Linux netfilter implementation did not correctly perform validation when handling 32 bit compatibility IPT_SO_SET_REPLACE events on 64 [ more… ]