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: libwmf, memory corruption

May 2009 by Vigil@nce

An attacker can invite the victim to open a malicious WMF image with an application linked to libwmf in order to create a denial of service or to execute code on his computer.

- Severity: 2/4
- Consequences: user access/rights, denial of service of client
- Provenance: document
- 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: 06/05/2009

IMPACTED PRODUCTS

- Debian Linux
- Mandriva Corporate
- Mandriva Linux
- Red Hat Enterprise Linux
- Unix - plateform

DESCRIPTION OF THE VULNERABILITY

The libwmf library handles WMF (Microsoft Windows Metafile Format) images.

This library contains its own version of the gd library. However, the gdClipSetAdd() function of the src/extra/gd/gd_clip.c file reallocates a pointer which can be uninitialized. A memory corruption thus occurs.

An attacker can therefore invite the victim to open a malicious WMF image with an application linked to libwmf in order to create a denial of service or to execute code on his computer.

CHARACTERISTICS

- Identifiers: 496864, BID-34792, CVE-2009-1364, DSA 1796-1, MDVSA-2009:106, RHSA-2009:0457-01, VIGILANCE-VUL-8692
- Url: http://vigilance.fr/vulnerability/libwmf-memory-corruption-8692




See previous articles

    

See next articles