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Vulnerability of Linux kernel: denial of service via cxgb4 DMA

Synthesis of the vulnerability 

An attacker can trigger a fatal error via cxgb4 DMA of the Linux kernel, in order to trigger a denial of service.
Vulnerable systems: Debian, Linux, Slackware, Ubuntu.
Severity of this threat: 1/4.
Creation date: 02/10/2019.
Références of this weakness: CERTFR-2019-AVI-602, CERTFR-2020-AVI-005, CERTFR-2020-AVI-123, CVE-2019-17075, DLA-2114-1, SSA:2019-311-01, USN-4208-1, USN-4210-1, USN-4211-1, USN-4211-2, USN-4226-1, VIGILANCE-VUL-30494.

Description of the vulnerability 

An attacker can trigger a fatal error via cxgb4 DMA of the Linux kernel, in order to trigger a denial of service.
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This computer weakness bulletin impacts software or systems such as Debian, Linux, Slackware, Ubuntu.

Our Vigil@nce team determined that the severity of this computer threat announce is low.

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 threat announce.

Solutions for this threat 

Linux kernel: version 4.9.198.
The version 4.9.198 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: version 4.4.198.
The version 4.4.198 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v4.x/

Linux kernel: patch for cxgb4 DMA.
A patch is indicated in information sources.

Debian 8: new linux-4.9 packages.
New packages are available:
  Debian 8: linux-4.9 4.9.210-1~deb8u1

Slackware 14.2: new kernel packages.
New packages are available:
  Slackware 14.2: kernel 4.4.199-*-1

Ubuntu: new linux-image-4.15.0 packages (03/12/2019).
New packages are available:
  Ubuntu 16.04 LTS: linux-image-generic-hwe-16.04 4.15.0.72.92
  Ubuntu 18.04 LTS: linux-image-generic 4.15.0.72.74

Ubuntu: new linux-image-4.4.0 packages.
New packages are available:
  Ubuntu 14.04 ESM: linux-image-generic-lts-xenial 4.4.0.170.149
  Ubuntu 16.04 LTS: linux-image-generic 4.4.0.170.178

Ubuntu: new linux-image-5.0.0 packages (07/01/2020).
New packages are available:
  Ubuntu 18.04 LTS: linux-image-azure 5.0.0.1028.39
  Ubuntu 19.04: linux-image-generic 5.0.0.38.40

Ubuntu: new linux-image-5.3.0 packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-gcp-edge 5.3.0.1009.9
  Ubuntu 19.10: linux-image-generic 5.3.0.24.28

Wind River Linux: version 10.17.41.19.
The version 10.17.41.19 is fixed.

Wind River Linux: version 10.18.44.12.
The version 10.18.44.12 is fixed:
  https://support2.windriver.com/

Wind River Linux: version 10.19.45.2.
The version 10.19.45.2 is fixed:
  https://support2.windriver.com/
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Computer vulnerabilities tracking service 

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