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: use after free via AIO ioctx_alloc

April 2014 by Vigil@nce

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

SYNTHESIS OF THE VULNERABILITY

A local attacker can use a freed memory area in the AIO ioctx_alloc() function of the Linux kernel, in order to trigger a denial of service, and possibly to execute code.

- Impacted products: Linux
- Severity: 1/4
- Creation date: 01/04/2014

DESCRIPTION OF THE VULNERABILITY

The Linux kernel supports AIO (Asynchronous IO) in order to transfer data efficiently.

However, when an error occurs in the ioctx_alloc() function of the fs/aio.c file, it frees twice a memory area.

A local attacker can therefore use a freed memory area in the AIO ioctx_alloc() function of the Linux kernel, in order to trigger a denial of service, and possibly to execute code.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

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




See previous articles

    

See next articles