Description

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From version 3.4.0 to before version 3.4.7, an attacker providing a crafted .exr file with HTJ2K compression and a channel width of 32768 can write controlled data beyond the output heap buffer in any application that decodes EXR images. The write primitive is 2 bytes per overflow iteration or 4 bytes (by another path), repeating for each additional pixel past the overflow point. In this context, a heap write overflow can lead to remote code execution on systems. This issue has been patched in version 3.4.7.

Type de vulnérabilité

• CWE-122
• CWE-190

Vecteur d'attaque

Complexité : LOW

Privilèges requis : LOW

Interaction utilisateur : REQUIRED

Impact

• Confidentialité : HIGH
• Intégrité : HIGH
• Disponibilité : HIGH

Recommandations

Appliquer les correctifs de sécurité fournis par le vendeur dès que possible.