Technical Description

A vulnerability has been identified in CUPS, which could be exploited by remote attackers to cause a denial of service or compromise a vulnerable system. This issue is caused by a signedness error within the "asn1_get_string()" [backend/snmp.c] function when processesing specially crafted SNMP responses, which could be exploited by remote attackers to crash a vulnerable application or execute arbitrary code.

Note : The SNMP backend is enabled by default in versions 1.2.x and is disabled by default in CUPS versions 1.3.x.

Affected Products

CUPS version 1.3.4 and prior

Solution

Upgrade to CUPS version 1.3.5 :
http://www.cups.org/software.php

References

http://www.vupen.com/english/advisories/2007/4242
http://www.cups.org/str.php?L2589

Credits

Vulnerability reported by Wei Wang (McAfee AVERT Research).

ChangeLog

2007-12-18 : Initial release

Vulnerability Management

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