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computer weakness announce CVE-2019-19076

Linux kernel: memory leak via nfp_abm_u32_knode_replace

Synthesis of the vulnerability

An attacker can create a memory leak via nfp_abm_u32_knode_replace() of the Linux kernel, in order to trigger a denial of service.
Severity of this weakness: 1/4.
Creation date: 19/11/2019.
Références of this bulletin: CERTFR-2019-AVI-602, CVE-2019-19076, USN-4209-1, VIGILANCE-VUL-30906.
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Description of the vulnerability

An attacker can create a memory leak via nfp_abm_u32_knode_replace() of the Linux kernel, in order to trigger a denial of service.
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This security alert impacts software or systems such as Linux, Ubuntu.

Our Vigil@nce team determined that the severity of this security weakness 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 security announce.

Solutions for this threat

Linux kernel: version 5.3.6.
The version 5.3.6 is fixed:
  https://cdn.kernel.org/pub/linux/kernel/v5.x/

Linux kernel: patch for nfp_abm_u32_knode_replace.
A patch is indicated in information sources.

Ubuntu: new linux-image-5.0.0 packages.
New packages are available:
  Ubuntu 18.04 LTS: linux-image-generic-hwe-18.04 5.0.0.37.95
  Ubuntu 19.04: linux-image-generic 5.0.0.37.39
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