SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200412-25 (CUPS: Multiple vulnerabilities)
CUPS makes use of vulnerable Xpdf code to handle PDF files (CAN-2004-1125). Furthermore, Ariel Berkman discovered a buffer overflow in the ParseCommand function in hpgl-input.c in the hpgltops program (CAN-2004-1267). Finally, Bartlomiej Sieka discovered several problems in the lppasswd program: it ignores some write errors (CAN-2004-1268), it can leave the passwd.new file in place (CAN-2004-1269) and it does not verify that passwd.new file is different from STDERR (CAN-2004-1270).
The Xpdf and hpgltops vulnerabilities may be exploited by a remote attacker to execute arbitrary code by sending specific print jobs to a CUPS spooler. The lppasswd vulnerabilities may be exploited by a local attacker to write data to the CUPS password file or deny further password modifications.
There is no known workaround at this time.
SolutionAll CUPS users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=net-print/cups-1.1.23'