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Vigil@nce: Linux kernel, denial of service via automount

February 2010 by Vigil@nce

A local attacker can use automount, in order to generate a denial of service.

- Severity: 1/4
- Consequences: denial of service of service
- 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: 24/02/2010

IMPACTED PRODUCTS

- Linux kernel

DESCRIPTION OF THE VULNERABILITY

The automatic file system mounting (automount) uses:
- symbolic links (NFS), or
- AutoFS

When symbolic links are used, directory links are not followed with LOOKUP_FOLLOW. This error leads to a denial of service.

Technical details are unknown.

CHARACTERISTICS

- Identifiers: VIGILANCE-VUL-9471
- Url: http://vigilance.fr/vulnerability/L...




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