A Directory Traversal vulnerability exists in the GNU patch before 2.7.4. A remote attacker can write to arbitrary files via a symlink attack in a patch file. NOTE: this issue exists because of an incomplete fix for CVE-2015-1196.
Se presenta una vulnerabilidad de Salto de Directorio en el parche GNU versiones anteriores a 2.7.4. Un atacante remoto puede escribir en archivos arbitrarios por medio de un ataque de tipo symlink en un archivo de parche. NOTA: este problema se presenta debido a una solución incompleta para CVE-2015-1196.
Jakub Wilk discovered that GNU patch did not correctly handle file paths in patch files. An attacker could specially craft a patch file that could overwrite arbitrary files with the privileges of the user invoking the program. This issue only affected Ubuntu 12.04 LTS. Laszlo Boszormenyi discovered that GNU patch did not correctly handle some patch files. An attacker could specially craft a patch file that could cause a denial of service. Various other issues were also addressed.
