CVE-2014-8166: Input Validation

First published: Fri Apr 04 2014(Updated: )

It was reported that ANSI escape sequences could be added to printer names in CUPS. Becaue CUPS has a browsing feature that, when enabled, allows remote hosts to announce shared printers, a malicious host or user could send a specially-crafted UDP packet to a CUPS server announcing an arbitrary printer name that includes ANSI escape sequences. Since the CUPS daemon does not remove these characters, a user on the targeted system could query the printer list (using 'lpstat -a', for example). If this were done in a terminal that supported the ANSI escape sequences (like a terminal with support for color), then code execution could be possible as the terminal would interpret the ANSI escape sequences contained in the printer name.

Credit: secalert@redhat.com

Affected Software	Affected Version	How to fix
Cups Cups	<1.6

Remedy

https://bugzilla.redhat.com/show_bug.cgi?id=1084577

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