Gentoo Linux Security Advisory 201207-10 - Multiple vulnerabilities have been found in CUPS, some of which may allow execution of arbitrary code or local privilege escalation. Versions less than 1.4.8-r1 are affected.
ac1a9fddc193fe58d21d0ca7c54126b91d2ff39c64167361020f526fdbf282f1Debian Linux Security Advisory 2176-1 - Several vulnerabilities have been discovered in the Common UNIX Printing System. A null pointer dereference in RSS job completion notifications could lead to denial of service. It was discovered that incorrect file descriptor handling could lead to denial of service. A cross-site request forgery vulnerability was discovered in the web interface. Incorrect memory management in the filter subsystem could lead to denial of service. Emmanuel Bouillon discovered a symlink vulnerability in handling of cache files. Various other issues were also addressed.
21901e6c776cf699416e364a1c536e8ae21ddbb297893d90aec7aef45ed8caffMandriva Linux Security Advisory 2010-234 - 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.
0dab4ef60a555b01565c5907cb2d99a63df8c8d71c529e3b72fcfb550aa56f4cMandriva Linux Security Advisory 2010-232 - 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.
04e93c19aeb95affc703012416b9a127b061954e7f95f0664a38bba985b44c89Ubuntu Security Notice 952-1 - Adrian Pastor and Tim Starling discovered that the CUPS web interface incorrectly protected against cross-site request forgery (CSRF) attacks. If an authenticated user were tricked into visiting a malicious website while logged into CUPS, a remote attacker could modify the CUPS configuration and possibly steal confidential data. It was discovered that CUPS did not properly handle memory allocations in the texttops filter. If a user or automated system were tricked into printing a crafted text file, a remote attacker could cause a denial of service or possibly execute arbitrary code with privileges of the CUPS user (lp). Luca Carettoni discovered that the CUPS web interface incorrectly handled form variables. A remote attacker who had access to the CUPS web interface could use this flaw to read a limited amount of memory from the cupsd process and possibly obtain confidential data.
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