Ubuntu security

USN-3371-1: Linux kernel (HWE) kernel vulnerabilities Ubuntu Security Notice USN-3371-1 28th July, 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 It was discovered that the Linux kernel did not properly initialize a Wake-on-Lan data structure. A local attacker could use this to expose sensitiveinformation (kernel memory). (CVE-2014-9900) Alexander Potapenko discovered a race condition in the Advanced Linux SoundArchitecture (ALSA) subsystem in the Linux kernel. A local attacker coulduse this to expose sensitive information (kernel memory).(CVE-2017-1000380) Li Qiang discovered that the DRM driver for VMware Virtual GPUs in theLinux kernel did not properly validate some ioctl arguments. A localattacker could use this to cause a denial of service (system crash).(CVE-2017-7346) Murray McAllister [ more… ]

USN-3370-1: Apache HTTP Server vulnerability Ubuntu Security Notice USN-3370-1 27th July, 2017 apache2 vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Apache HTTP Server could be made to crash or leak sensitive information if it received specially crafted network traffic. Software description apache2 – Apache HTTP server Details Robert Święcki discovered that the Apache HTTP Server mod_auth_digestmodule incorrectly cleared values when processing certain requests. Aremote attacker could use this issue to cause the server to crash,resulting in a denial or service, or possibly obtain sensitive information. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.04: apache2-bin 2.4.25-3ubuntu2.2 Ubuntu 16.04 LTS: apache2-bin 2.4.18-2ubuntu3.4 Ubuntu 14.04 LTS: apache2-bin 2.4.7-1ubuntu4.17 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, [ more… ]

USN-3369-1: FreeRADIUS vulnerabilities Ubuntu Security Notice USN-3369-1 27th July, 2017 freeradius vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in FreeRADIUS. Software description freeradius – high-performance and highly configurable RADIUS server Details Guido Vranken discovered that FreeRADIUS incorrectly handled memory whendecoding packets. A remote attacker could use this issue to causeFreeRADIUS to crash or hang, resulting in a denial of service, or possiblyexecute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.04: freeradius 3.0.12+dfsg-4ubuntu1.2 Ubuntu 16.04 LTS: freeradius 2.2.8+dfsg-0.1ubuntu0.1 Ubuntu 14.04 LTS: freeradius 2.1.12+dfsg-1.2ubuntu8.2 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will make all the necessary changes. References CVE-2017-10978, CVE-2017-10979, CVE-2017-10980, CVE-2017-10981, CVE-2017-10982, [ more… ]

USN-3366-1: OpenJDK 8 vulnerabilities Ubuntu Security Notice USN-3366-1 26th July, 2017 openjdk-8 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.04 LTS Summary Several security issues were fixed in OpenJDK 8. Software description openjdk-8 – Open Source Java implementation Details It was discovered that the JPEGImageReader class in OpenJDK wouldincorrectly read unused image data. An attacker could use this tospecially construct a jpeg image file that when opened by a Javaapplication would cause a denial of service. (CVE-2017-10053) It was discovered that the JAR verifier in OpenJDK did not properlyhandle archives containing files missing digests. An attacker coulduse this to modify the signed contents of a JAR file. (CVE-2017-10067) It was discovered that integer overflows existed in the Hotspotcomponent of OpenJDK when generating range check loop predicates. Anattacker could use this to specially [ more… ]

USN-3368-1: libiberty vulnerabilities Ubuntu Security Notice USN-3368-1 26th July, 2017 libiberty vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.04 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary Several security issues were fixed in libiberty. Software description libiberty – library of utility functions used by GNU programs Details It was discovered that libiberty incorrectly handled certain stringoperations. If a user or automated system were tricked into processing aspecially crafted binary, a remote attacker could use this issue to causelibiberty to crash, resulting in a denial of service, or possibly executearbitrary code. This issue only applied to Ubuntu 14.04 LTS and Ubuntu16.04 LTS. (CVE-2016-2226) It was discovered that libiberty incorrectly handled parsing certainbinaries. If a user or automated system were tricked into processing aspecially crafted binary, a remote attacker could use this issue to causelibiberty to crash, [ more… ]