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CVE-2017-10661

Status Candidate

Overview

Race condition in fs/timerfd.c in the Linux kernel before 4.10.15 allows local users to gain privileges or cause a denial of service (list corruption or use-after-free) via simultaneous file-descriptor operations that leverage improper might_cancel queueing.

Related Files

Ubuntu Security Notice USN-3470-2
Posted Nov 1, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3470-2 - USN-3470-1 fixed vulnerabilities in the Linux kernel for Ubuntu 14.04 LTS. This update provides the corresponding updates for the Linux Hardware Enablement kernel from Ubuntu 14.04 LTS for Ubuntu 12.04 ESM. Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build function in the Linux kernel. A local attacker could use to cause a denial of service or possibly execute arbitrary code with administrative privileges. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local, vulnerability
systems | linux, ubuntu
advisories | CVE-2016-8632, CVE-2017-10661, CVE-2017-10662, CVE-2017-10663, CVE-2017-10911, CVE-2017-11176, CVE-2017-14340
MD5 | 7949d63988c2185b2fec1d6ff3ab737d
Ubuntu Security Notice USN-3470-1
Posted Oct 31, 2017
Authored by Ubuntu | Site security.ubuntu.com

Ubuntu Security Notice 3470-1 - Qian Zhang discovered a heap-based buffer overflow in the tipc_msg_build function in the Linux kernel. A local attacker could use to cause a denial of service or possibly execute arbitrary code with administrative privileges. Dmitry Vyukov discovered that a race condition existed in the timerfd subsystem of the Linux kernel when handling might_cancel queuing. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. Various other issues were also addressed.

tags | advisory, denial of service, overflow, arbitrary, kernel, local
systems | linux, ubuntu
advisories | CVE-2016-8632, CVE-2017-10661, CVE-2017-10662, CVE-2017-10663, CVE-2017-10911, CVE-2017-11176, CVE-2017-14340
MD5 | 57feca81771640a80be09a58a7bd56a8
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