Cups » Cups : Security Vulnerabilities, CVEs, CVSS score >= 8

The CUPS AppArmor profile incorrectly confined the dnssd backend due to use of hard links. A local attacker could possibly use this issue to escape confinement. This flaw affects versions prior to 2.2.7-1ubuntu2.1 in Ubuntu 18.04 LTS, prior to 2.2.4-7ubuntu3.1 in Ubuntu 17.10, prior to 2.1.3-4ubuntu0.5 in Ubuntu 16.04 LTS, and prior to 1.7.2-0ubuntu1.10 in Ubuntu 14.04 LTS.

The add_job function in scheduler/ipp.c in cupsd in CUPS before 2.0.3 performs incorrect free operations for multiple-value job-originating-host-name attributes, which allows remote attackers to trigger data corruption for reference-counted strings via a crafted (1) IPP_CREATE_JOB or (2) IPP_PRINT_JOB request, as demonstrated by replacing the configuration file and consequently executing arbitrary code.

The browsing feature in the server in CUPS does not filter ANSI escape sequences from shared printer names, which might allow remote attackers to execute arbitrary code via a crafted printer name.

Double free vulnerability in the process_browse_data function in CUPS 1.3.5 allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via crafted UDP Browse packets to the cupsd port (631/udp), related to an unspecified manipulation of a remote printer. NOTE: some of these details are obtained from third party information.

Heap-based buffer overflow in the cgiCompileSearch function in CUPS 1.3.5, and other versions including the version bundled with Apple Mac OS X 10.5.2, when printer sharing is enabled, allows remote attackers to execute arbitrary code via crafted search expressions.

Off-by-one error in the ippReadIO function in cups/ipp.c in CUPS 1.3.3 allows remote attackers to cause a denial of service (crash) via a crafted (1) textWithLanguage or (2) nameWithLanguage Internet Printing Protocol (IPP) tag, leading to a stack-based buffer overflow.