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Vulnerability of Linux kernel: integer overflow via perf_cpu_time_max_percent_handler

Synthesis of the vulnerability 

An attacker can generate an integer overflow via perf_cpu_time_max_percent_handler() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Impacted products: Debian, Linux, SUSE Linux Enterprise Desktop, SLES, Ubuntu.
Severity of this bulletin: 2/4.
Creation date: 03/07/2018.
Références of this threat: CERTFR-2018-AVI-321, CERTFR-2018-AVI-408, CERTFR-2020-AVI-318, CVE-2017-18255, DLA-1423-1, DLA-1424-1, DLA-1434-1, SUSE-SU-2020:1255-1, USN-3696-1, USN-3696-2, USN-3754-1, VIGILANCE-VUL-26601.

Description of the vulnerability 

An attacker can generate an integer overflow via perf_cpu_time_max_percent_handler() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
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This computer threat note impacts software or systems such as Debian, Linux, SUSE Linux Enterprise Desktop, SLES, Ubuntu.

Our Vigil@nce team determined that the severity of this weakness alert is medium.

The trust level is of type confirmed by the editor, with an origin of user shell.

An attacker with a expert ability can exploit this computer weakness note.

Solutions for this threat 

Linux kernel: patch for perf_cpu_time_max_percent_handler.
A patch is indicated in information sources.

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.110-1~deb8u1

SUSE LE 12 SP2: new kernel packages.
New packages are available:
  SUSE LE 12 SP2: kernel-default 4.4.121-92.129.1

Ubuntu 14.04: new linux-image-3.13.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic 3.13.0.157.167

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 LTS: linux-image-generic-lts-xenial 4.4.0.130.110
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.130.136
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