Sistemas Afectados

1. Impacto

   Un usuario malicioso puede ejecutar código arbitrário en el sistema o puede lograr un ataque de negación de servicios (DOS)

2. Descripción

   Se encontró que la herramienta freshclam no realiza una verificación correcta del tamaño de los datos del encabezado que recibe de un servidor web.

   Esto podría permitir un sitio remoto web ejecutar código arbitrario vía largos encabezados HTTP o causar un DoS.

3. Solución

   Los paquetes actualizados estan disponibles desde el sitio de Mandriva http://www.mandriva.com/
   
   
   Corporate Server 3.0
   
   9e293869d32057fd0eb32489c2668c9a corporate/3.0/RPMS/clamav-0.88.2-0.1.C30mdk.i586.rpm
   e727b5102b3b7ecd1580c7671825ed24 corporate/3.0/RPMS/clamav-db-0.88.2-0.1.C30mdk.i586.rpm
   016b4eac4f1dda299d3ef4a708ba11c2 corporate/3.0/RPMS/clamav-milter-0.88.2-0.1.C30mdk.i586.rpm
   7c715a9f07a204fdf070eac3c7dd264a corporate/3.0/RPMS/clamd-0.88.2-0.1.C30mdk.i586.rpm
   47b553230f4070d12995a4ae9c1a4111 corporate/3.0/RPMS/libclamav1-0.88.2-0.1.C30mdk.i586.rpm
   8d11c95524b35b91b29da262cee7ce3e corporate/3.0/RPMS/libclamav1-devel-0.88.2-0.1.C30mdk.i586.rpm
   b702a7862c123c89bdea7d0ab72aea38 corporate/3.0/SRPMS/clamav-0.88.2-0.1.C30mdk.src.rpm
   
   Corporate Server 3.0/X86_64
   
   4309266e4bacf97d9025d688cfe88cd8 x86_64/corporate/3.0/RPMS/clamav-0.88.2-0.1.C30mdk.x86_64.rpm
   2f14c88331222593e2a24bc8a28c1dfc x86_64/corporate/3.0/RPMS/clamav-db-0.88.2-0.1.C30mdk.x86_64.rpm
   9b810d09669a131f80354dee61e8ab6e x86_64/corporate/3.0/RPMS/clamav-milter-0.88.2-0.1.C30mdk.x86_64.rpm
   f5cf957964da35212b5216ef61db6cb6 x86_64/corporate/3.0/RPMS/clamd-0.88.2-0.1.C30mdk.x86_64.rpm
   fdaffd2efa64f9a4613398ae7c299509 x86_64/corporate/3.0/RPMS/lib64clamav1-0.88.2-0.1.C30mdk.x86_64.rpm
   4f33c005fd172e9c6de84368cf51c681 x86_64/corporate/3.0/RPMS/lib64clamav1-devel-0.88.2-0.1.C30mdk.x86_64.rpm
   b702a7862c123c89bdea7d0ab72aea38 x86_64/corporate/3.0/SRPMS/clamav-0.88.2-0.1.C30mdk.src.rpm
   
   Mandrivalinux LE2005
   
   504700848a3d4d5c6cd56bc599f72a01 10.2/RPMS/clamav-0.88.2-0.1.102mdk.i586.rpm
   565dc413c1827141490cf9d3f8638dc4 10.2/RPMS/clamav-db-0.88.2-0.1.102mdk.i586.rpm
   0d15660c887ed3b728068c4be742c2c4 10.2/RPMS/clamav-milter-0.88.2-0.1.102mdk.i586.rpm
   cb0f6327f6b544bb5785f976837c6534 10.2/RPMS/clamd-0.88.2-0.1.102mdk.i586.rpm
   b1290d2aef3fb5fddd2960cf724ddb4a 10.2/RPMS/libclamav1-0.88.2-0.1.102mdk.i586.rpm
   78b7ffa7cd5ffd9b97d9e2cbd764dd67 10.2/RPMS/libclamav1-devel-0.88.2-0.1.102mdk.i586.rpm
   9c25ddd53c49a94613cba04d487f1d67 10.2/SRPMS/clamav-0.88.2-0.1.102mdk.src.rpm
   
   Mandrivalinux LE2005/X86_64
   
   21995c6aba38f1dce3ab59e595366869 x86_64/10.2/RPMS/clamav-0.88.2-0.1.102mdk.x86_64.rpm
   070fc66c387ac0c48182c94223e68aef x86_64/10.2/RPMS/clamav-db-0.88.2-0.1.102mdk.x86_64.rpm
   1ee9e18a46da275aae4d218749aefa2c x86_64/10.2/RPMS/clamav-milter-0.88.2-0.1.102mdk.x86_64.rpm
   d7e05378a54d9340e031b1be7ebc1d9c x86_64/10.2/RPMS/clamd-0.88.2-0.1.102mdk.x86_64.rpm
   57d2cc1e2604f9a67707c9e32d5912bb x86_64/10.2/RPMS/lib64clamav1-0.88.2-0.1.102mdk.x86_64.rpm
   080bc0894bb82a9ccb3c583099b7ff21 x86_64/10.2/RPMS/lib64clamav1-devel-0.88.2-0.1.102mdk.x86_64.rpm
   9c25ddd53c49a94613cba04d487f1d67 x86_64/10.2/SRPMS/clamav-0.88.2-0.1.102mdk.src.rpm
   
   Mandrivalinux 2006
   
   04b9eaa22e3709a556355d1a63f325d3 2006.0/RPMS/clamav-0.88.2-0.1.20060mdk.i586.rpm
   b42db252b6017e518cd97bc3852d6501 2006.0/RPMS/clamav-db-0.88.2-0.1.20060mdk.i586.rpm
   3b0002e7113f98b2d464db0d83e82937 2006.0/RPMS/clamav-milter-0.88.2-0.1.20060mdk.i586.rpm
   824f1c08ea56fca696204d2c17474763 2006.0/RPMS/clamd-0.88.2-0.1.20060mdk.i586.rpm
   59cf5dabda1ec2d4c00607c61568603c 2006.0/RPMS/libclamav1-0.88.2-0.1.20060mdk.i586.rpm
   5fa8e2280cd07c19f14c13d8ef6a808d 2006.0/RPMS/libclamav1-devel-0.88.2-0.1.20060mdk.i586.rpm
   8f8d2d75378f599ec0ad4bb0c4b4c718 2006.0/SRPMS/clamav-0.88.2-0.1.20060mdk.src.rpm
   
   Mandrivalinux 2006/X86_64
   
   31d57fe2b7213ef6a553efbb54e9fd44 x86_64/2006.0/RPMS/clamav-0.88.2-0.1.20060mdk.x86_64.rpm
   cd92749b954d7e683e63ac91465279cf x86_64/2006.0/RPMS/clamav-db-0.88.2-0.1.20060mdk.x86_64.rpm
   cd67db062928aab0bff452d548c8f109 x86_64/2006.0/RPMS/clamav-milter-0.88.2-0.1.20060mdk.x86_64.rpm
   32220d09761f344b256c402b362fdf44 x86_64/2006.0/RPMS/clamd-0.88.2-0.1.20060mdk.x86_64.rpm
   80e899d781d667614ff1be548473469c x86_64/2006.0/RPMS/lib64clamav1-0.88.2-0.1.20060mdk.x86_64.rpm
   0a926463dde3f8f730b3088b454033be x86_64/2006.0/RPMS/lib64clamav1-devel-0.88.2-0.1.20060mdk.x86_64.rpm
   8f8d2d75378f599ec0ad4bb0c4b4c718 x86_64/2006.0/SRPMS/clamav-0.88.2-0.1.20060mdk.src.rpm
   
   Para actualizar automáticamente, usar MandrakeUpdate.
   
   Verificar la actualización antes de realizar las mejoras para asegurarse la integridad de los paquetes descargados, se puede realizar mediante el comando:
   rpm --checksig package.rpm
   Si se usa MandrakeUpdate, la verificación con MD5 y la firma PGP se realiza automáticamente.
   

La Coordinación de Seguridad de la Información/UNAM-CERT agradece el apoyo en la elaboración ó traducción y revisión de éste Documento a:

• Edgar Rios Clemente (erios at seguridad dot unam dot mx)
• Alejandro Nuñez Sandoval (anunez at seguridad dot unam dot mx)