SECURITY

USN-3584-1: sensible-utils vulnerability Ubuntu Security Notice USN-3584-1 26th February, 2018 sensible-utils vulnerability A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Ubuntu 16.04 LTS Ubuntu 14.04 LTS Summary sensible-utils could be made to run programs as your login if it opened a malicious URL. Software description sensible-utils – Utilities for sensible alternative selection Details Gabriel Corona discovered that sensible-utils incorrectly validated stringswhen launcher a browser with the sensible-browser tool. A remote attackercould possibly use this issue with a specially crafted URL to conduct anargument injection attack and execute arbitrary code. Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.10: sensible-utils 0.0.10ubuntu0.1 Ubuntu 16.04 LTS: sensible-utils 0.0.9ubuntu0.16.04.1 Ubuntu 14.04 LTS: sensible-utils 0.0.9ubuntu0.14.04.1 To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades. In general, a standard system update will [ more… ]

USN-3583-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3583-1 23rd February, 2018 linux vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 14.04 LTS Summary Several security issues were fixed in the Linux kernel. Software description linux – Linux kernel Details It was discovered that an out-of-bounds write vulnerability existed in theFlash-Friendly File System (f2fs) in the Linux kernel. An attacker couldconstruct a malicious file system that, when mounted, could cause a denialof service (system crash) or possibly execute arbitrary code.(CVE-2017-0750) It was discovered that a race condition leading to a use-after-freevulnerability existed in the ALSA PCM subsystem of the Linux kernel. Alocal attacker could use this to cause a denial of service (system crash)or possibly execute arbitrary code. (CVE-2017-0861) It was discovered that the KVM implementation in the Linux kernel allowedpassthrough of the diagnostic I/O port [ more… ]

USN-3583-2: Linux kernel (Trusty HWE) vulnerabilities Ubuntu Security Notice USN-3583-2 23rd February, 2018 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 ESM Details USN-3583-1 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. It was discovered that an out-of-bounds write vulnerability existed in theFlash-Friendly File System (f2fs) in the Linux kernel. An attacker couldconstruct a malicious file system that, when mounted, could cause a denialof service (system crash) or possibly execute arbitrary code.(CVE-2017-0750) It was discovered that a race condition leading to a use-after-freevulnerability existed in the ALSA PCM subsystem of [ more… ]

USN-3581-3: Linux kernel (Raspberry Pi 2) vulnerabilities Ubuntu Security Notice USN-3581-3 23rd February, 2018 linux-raspi2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Summary Several security issues were fixed in the Linux kernel. Software description linux-raspi2 – Linux kernel for Raspberry Pi 2 Details Mohamed Ghannam discovered that the IPv4 raw socket implementation in theLinux kernel contained a race condition leading to uninitialized pointerusage. A local attacker could use this to cause a denial of service orpossibly execute arbitrary code. (CVE-2017-17712) ChunYu Wang discovered that a use-after-free vulnerability existed in theSCTP protocol implementation in the Linux kernel. A local attacker coulduse this to cause a denial of service (system crash) or possibly executearbitrary code, (CVE-2017-15115) Mohamed Ghannam discovered a use-after-free vulnerability in the DCCPprotocol implementation in the Linux kernel. A local attacker could usethis [ more… ]

USN-3578-1: WavPack vulnerabilities Ubuntu Security Notice USN-3578-1 21st February, 2018 wavpack vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 17.10 Summary Several security issues were fixed in WavPack. Software description wavpack – audio codec (lossy and lossless) – encoder and decoder Details It was discovered that WavPack incorrectly handled certain DSDIFF files.An attacker could possibly use this to execute arbitrary code orcause a denial of service. (CVE-2018-7253) It was discovered that WavPack incorrectly handled certain CAF files.An attacker could possibly use this to cause a denial of service.(CVE-2018-7254) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 17.10: libwavpack1 5.1.0-2ubuntu0.2 wavpack 5.1.0-2ubuntu0.2 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-2018-7253, CVE-2018-7254 Source: [ more… ]