The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a vigilance database and tools to fix them.

Vulnerability of Linux kernel: use after free via hns_nic_net_xmit_hw

Synthesis of the vulnerability 

An attacker can force the usage of a freed memory area via hns_nic_net_xmit_hw() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Vulnerable software: Debian, Linux.
Severity of this announce: 2/4.
Creation date: 06/03/2018.
Références of this computer vulnerability: CVE-2017-18218, DSA-4188-1, VIGILANCE-VUL-25441.

Description of the vulnerability 

An attacker can force the usage of a freed memory area via hns_nic_net_xmit_hw() of the Linux kernel, in order to trigger a denial of service, and possibly to run code.
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

This threat note impacts software or systems such as Debian, Linux.

Our Vigil@nce team determined that the severity of this cybersecurity note 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 vulnerability note.

Solutions for this threat 

Linux kernel: version 4.9.92.
The version 4.9.92 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

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

Debian 9: new linux packages.
New packages are available:
  Debian 9: linux 4.9.88-1
Full bulletin, software filtering, emails, fixes, ... (Request your free trial)

Computer vulnerabilities tracking service 

Vigil@nce provides a software vulnerabilities watch. The Vigil@nce team tracks computer vulnerabilities impacting systems and applications.