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: denial of service via Intel HD Audio

February 2010 by Vigil@nce

On a system with an Intel HD Audio compatible device, a local attacker can generate a division by zero.

- Severity: 1/4
- Consequences: denial of service of computer
- Provenance: user shell
- Means of attack: no proof of concept, no attack
- Ability of attacker: expert (4/4)
- Confidence: confirmed by the editor (5/5)
- Diffusion of the vulnerable configuration: high (3/3)
- Creation date: 22/02/2010

IMPACTED PRODUCTS

- Linux kernel

DESCRIPTION OF THE VULNERABILITY

The sound/pci/hda/hda_intel.c file implements the support of devices compatible with Intel HD Audio (branded Intel, ATI, VIA, SiS, ULI).

The azx_position_ok() function of hda_intel.c checks if the storage memory area is valid. However, if the period (azx_dev->period_bytes) size is null, a division by zero occurs during the check.

On a system with an Intel HD Audio compatible device, a local attacker can therefore generate a division by zero.

CHARACTERISTICS

- Identifiers: VIGILANCE-VUL-9464
- Url: http://vigilance.fr/vulnerability/L...




See previous articles

    

See next articles