CVE-2010-2431

La función cupsFileOpen en CUPS en versiones anteriores a la 1.4.4 permite a usuarios locales que pertenezcan al grupo lp, sobreescribir ficheros de su elección mediante un ataque de enlace simbólico en el fichero (1) /var/cache/cups/remote.cache o (2) /var/cache/cups/job.cache.

Cross-site request forgery vulnerability in the web interface in CUPS, allows remote attackers to hijack the authentication of administrators for requests that change settings. The _WriteProlog function in texttops.c in texttops in the Text Filter subsystem in CUPS before 1.4.4 does not check the return values of certain calloc calls, which allows remote attackers to cause a denial of service or possibly execute arbitrary code via a crafted file. The web interface in CUPS, reads uninitialized memory during handling of form variables, which allows context-dependent attackers to obtain sensitive information from cupsd process memory via unspecified vectors. The cupsFileOpen function in CUPS before 1.4.4 allows local users, with lp group membership, to overwrite arbitrary files via a symlink attack on the /var/cache/cups/job.cache file. ipp.c in cupsd in CUPS 1.4.4 and earlier does not properly allocate memory for attribute values with invalid string data types, which allows remote attackers to cause a denial of service (use-after-free and application crash) or possibly execute arbitrary code via a crafted IPP request. The updated packages have been upgraded to cups 1.3.10 and patched to correct these issues.