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CVE-2017-14991

Status Candidate

Overview

The sg_ioctl function in drivers/scsi/sg.c in the Linux kernel before 4.13.4 allows local users to obtain sensitive information from uninitialized kernel heap-memory locations via an SG_GET_REQUEST_TABLE ioctl call for /dev/sg0.

Related Files

Ubuntu Security Notice USN-3469-1
Posted Oct 31, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3469-1 - Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. Bo Zhang discovered that the netlink wireless configuration interface in the Linux kernel did not properly validate attributes when handling certain requests. A local attacker with the CAP_NET_ADMIN could use this to cause a denial of service. Various other issues were also addressed.

tags | advisory, denial of service, kernel, local
systems | linux, ubuntu
advisories | CVE-2017-10911, CVE-2017-12153, CVE-2017-12154, CVE-2017-12192, CVE-2017-14051, CVE-2017-14156, CVE-2017-14340, CVE-2017-14489, CVE-2017-14991, CVE-2017-15537, CVE-2017-9984, CVE-2017-9985
MD5 | 7be1da2f9c2f1afabff5768836358115
Ubuntu Security Notice USN-3469-2
Posted Oct 31, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3469-2 - USN-3469-1 fixed vulnerabilities in the Linux kernel for Ubuntu 16.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 16.04 LTS for Ubuntu 14.04 LTS. Anthony Perard discovered that the Xen virtual block driver did not properly initialize some data structures before passing them to user space. A local attacker in a guest VM could use this to expose sensitive information from the host OS or other guest VMs. Various other issues were also addressed.

tags | advisory, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2017-10911, CVE-2017-12153, CVE-2017-12154, CVE-2017-12192, CVE-2017-14051, CVE-2017-14156, CVE-2017-14340, CVE-2017-14489, CVE-2017-14991, CVE-2017-15537, CVE-2017-9984, CVE-2017-9985
MD5 | ee069ba6ad2d7d27d564a4fb060eba00
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