[월:] 2017년 01월

USN-3167-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3167-1 11th January, 2017 linux vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in the kernel. Software description linux – Linux kernel Details Dmitry Vyukov discovered that the KVM implementation in the Linuxkernel did not properly initialize the Code Segment (CS) in certainerror cases. A local attacker could use this to expose sensitiveinformation (kernel memory). Baozeng Ding discovered a race condition that could lead to a use-after-free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linuxkernel. A local attacker could use this to cause a denial of service(system crash). (CVE-2016-9794) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 12.04 LTS: linux-image-3.2.0-120-generic-pae 3.2.0-120.163 linux-image-3.2.0-120-omap 3.2.0-120.163 linux-image-powerpc-smp 3.2.0.120.135 linux-image-3.2.0-120-powerpc-smp 3.2.0-120.163 linux-image-generic-pae [ more… ]

USN-3167-2: Linux kernel (OMAP4) vulnerabilities Ubuntu Security Notice USN-3167-2 11th January, 2017 linux-ti-omap4 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in the kernel. Software description linux-ti-omap4 – Linux kernel for OMAP4 Details Dmitry Vyukov discovered that the KVM implementation in the Linux kerneldid not properly initialize the Code Segment (CS) in certain error cases. Alocal attacker could use this to expose sensitive information (kernelmemory). (CVE-2016-9756) Baozeng Ding discovered a race condition that could lead to a use-after-free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linuxkernel. A local attacker could use this to cause a denial of service(system crash). (CVE-2016-9794) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 12.04 LTS: linux-image-omap4 3.2.0.1498.93 linux-image-3.2.0-1498-omap4 3.2.0-1498.125 To [ more… ]

USN-3168-1: Linux kernel vulnerabilities Ubuntu Security Notice USN-3168-1 11th January, 2017 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 kernel. Software description linux – Linux kernel Details Dmitry Vyukov discovered that the KVM implementation in the Linux kerneldid not properly initialize the Code Segment (CS) in certain error cases. Alocal attacker could use this to expose sensitive information (kernelmemory). (CVE-2016-9756) Andrey Konovalov discovered that signed integer overflows existed in thesetsockopt() system call when handling the SO_SNDBUFFORCE andSO_RCVBUFFORCE options. A local attacker with the CAP_NET_ADMIN capabilitycould use this to cause a denial of service (system crash or memorycorruption). (CVE-2016-9793) Baozeng Ding discovered a race condition that could lead to a use-after-free in the Advanced Linux Sound Architecture (ALSA) subsystem of the Linuxkernel. A local attacker [ more… ]