Actu
Vigil@nce: Linux kernel, denials of service via HFS Plus
November 2008 by Vigil@nce
SYNTHESIS
A local attacker can mount a malicious HFS Plus image in order to
stop the system.
Gravity: 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)
Number of vulnerabilities in this bulletin: 2
Creation date: 10/11/2008
IMPACTED PRODUCTS
- Linux kernel
DESCRIPTION
The HFS Plus (HFS+) filesystem is mainly used on Mac OS. The
fs/hfsplus directory contains the HFS Plus implementation for
Linux. It contains two vulnerabilities.
A HPF Plus image containing a malicious catalog generates an error
in the hfsplus_find_cat() function of fs/hfsplus/catalog.c.
[grav:1/4; BID-32093, CVE-2008-4934]
A malicious HPF Plus image generates an error in the
hfsplus_find_allocate() function of fs/hfsplus/bitmap.c.
[grav:1/4; BID-32096, CVE-2008-4934]
CHARACTERISTICS
Identifiers: BID-32093, BID-32096, CVE-2008-4934,
VIGILANCE-VUL-8231
