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

Freely subscribe to our NEWSLETTER

Newsletter FR

Newsletter EN

Vulnérabilités

Unsubscribe

Vigil@nce: Linux kernel, denial of service via SYN+FIN

June 2012 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

An attacker can send TCP packets with the SYN and FIN flags, in
order to create a denial of service.

 Severity: 2/4
 Creation date: 30/05/2012

IMPACTED PRODUCTS

 Linux kernel

DESCRIPTION OF THE VULNERABILITY

The TCP protocol uses flags:
 SYN : start of session
 FIN : end of session
 etc.

A TCP packet with both flags SYN and FIN set is invalid. However,
the Linux kernel does not reject it immediately. Its processing
thus uselessly consumes resources.

An attacker can therefore send numerous TCP packets with the SYN
and FIN flags, in order to create a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/Linux-kernel-denial-of-service-via-SYN-FIN-11661


See previous articles

    

See next articles


Your podcast Here

New, you can have your Podcast here. Contact us for more information ask:
Marc Brami
Phone: +33 1 40 92 05 55
Mail: ipsimp@free.fr

All new podcasts