CUPS 1.1.20 and earlier records authentication information for a device URI in the error_log file, which allows local users to obtain user names and passwords.

lppasswd in CUPS 1.1.22, when run in environments that do not ensure that file descriptors 0, 1, and 2 are open when lppasswd is called, does not verify that the passwd.new file is different from STDERR, which allows local users to control output to passwd.new via certain user input that triggers an error message.

lppasswd in CUPS 1.1.22 ignores write errors when modifying the CUPS passwd file, which allows local users to corrupt the file by filling the associated file system and triggering the write errors.

lppasswd in CUPS 1.1.22 does not remove the passwd.new file if it encounters a file-size resource limit while writing to passwd.new, which causes subsequent invocations of lppasswd to fail.

Buffer overflow in the ParseCommand function in hpgl-input.c in the hpgltops program for CUPS 1.1.22 allows remote attackers to execute arbitrary code via a crafted HPGL file.

Unknown vulnerability in the Internet Printing Protocol (IPP) implementation in CUPS before 1.1.19 allows remote attackers to cause a denial of service (CPU consumption from a "busy loop") via certain inputs to the IPP port (TCP 631).

Integer overflow in pdftops, as used in Xpdf 2.01 and earlier, xpdf-i, and CUPS before 1.1.18, allows local users to execute arbitrary code via a ColorSpace entry with a large number of elements, as demonstrated by cups-pdf.

filters/image-gif.c in Common Unix Printing System (CUPS) 1.1.14 through 1.1.17 does not properly check for zero-length GIF images, which allows remote attackers to execute arbitrary code via modified chunk headers, as demonstrated by nogif.

Multiple integer overflows in Common Unix Printing System (CUPS) 1.1.14 through 1.1.17 allow remote attackers to execute arbitrary code via (1) the CUPSd HTTP interface, as demonstrated by vanilla-coke, and (2) the image handling code in CUPS filters, as demonstrated by mksun.

jobs.c in Common Unix Printing System (CUPS) 1.1.14 through 1.1.17 does not properly use the strncat function call when processing the options string, which allows remote attackers to execute arbitrary code via a buffer overflow attack.