Rechercher
Contactez-nous Suivez-nous sur Twitter En francais English Language
 

De la Théorie à la pratique





















Freely subscribe to our NEWSLETTER

Newsletter FR

Newsletter EN

Vulnérabilités

Unsubscribe

Vigil@nce - Linux kernel, NetworkManager: denial of service via IPv6 RA MTU

November 2015 by Vigil@nce

This bulletin was written by Vigil@nce : http://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can send an IPv6 RA packet with a malicious MTU, which is accepted by NetworkManager and by the Linux kernel, in order to trigger a denial of service.

Impacted products: Debian, Linux, openSUSE, RHEL, Ubuntu, Unix (platform) not comprehensive.

Severity: 2/4.

Creation date: 22/09/2015.

Revision date: 17/11/2015.

DESCRIPTION OF THE VULNERABILITY

On a local network, IPv6 routers send the ICMPv6 Router Advertisement message to announce their presence and propose a MTU.

However, neither NetworkManager (CVE-2015-0272), nor the Linux kernel (CVE-2015-8215), check if the offered MTU is in the range IPV6_MIN_MTU to InterfaceMTU.

An attacker can therefore send an IPv6 RA packet with a malicious MTU, which is accepted by NetworkManager and by the Linux kernel, in order to trigger a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/L...




See previous articles

    

See next articles