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: NULL pointer dereference via ip_ra_control

Synthesis of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via ip_ra_control() of the Linux kernel, in order to trigger a denial of service.
Vulnerable products: Fedora, Linux.
Severity of this weakness: 1/4.
Creation date: 28/05/2019.
Références of this bulletin: CVE-2019-12381, FEDORA-2019-7ec378191e, FEDORA-2019-f40bd7826f, VIGILANCE-VUL-29424.

Description of the vulnerability 

An attacker can force a NULL pointer to be dereferenced via ip_ra_control() of the Linux kernel, in order to trigger a denial of service.
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This computer threat impacts software or systems such as Fedora, Linux.

Our Vigil@nce team determined that the severity of this computer vulnerability alert is low.

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

An attacker with a expert ability can exploit this cybersecurity weakness.

Solutions for this threat 

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

Fedora 29: new kernel-headers packages.
New packages are available:
  Fedora 29: kernel-headers 5.1.6-200.fc29

Fedora 29: new kernel packages.
New packages are available:
  Fedora 29: kernel 5.1.6-200.fc29

Fedora 29: new kernel-tools packages.
New packages are available:
  Fedora 29: kernel-tools 5.1.6-200.fc29

Fedora 30: new kernel-headers packages.
New packages are available:
  Fedora 30: kernel-headers 5.1.7-300.fc30

Fedora 30: new kernel packages.
New packages are available:
  Fedora 30: kernel 5.1.7-300.fc30

Wind River Linux: version 10.18.44.9.
The version 10.18.44.9 is fixed:
  https://support2.windriver.com/
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Computer vulnerabilities tracking service 

Vigil@nce provides a software vulnerability bulletin. The technology watch team tracks security threats targeting the computer system.