Description: A vulnerability has been reported in CUPS, which can be exploited by malicious people to cause a DoS (Denial of Service) or potentially compromise a vulnerable system.
The vulnerability is caused due to a signedness error within the "asn1_get_string()" function in backend/snmp.c. This can be exploited to cause a stack-based buffer overflow via specially crafted SNMP responses containing ASN1 encoded strings with negative length values.
Successful exploitation on 1.3.x versions requires that the snmp backend is configured in snmp.conf.
The vulnerability is reported in 1.2.x and 1.3.x versions prior to 1.3.5.
Solution: Update to version 1.3.5.
Provided and/or discovered by: The vendor credits Wei Wang of McAfee AVERT Research.
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.
Ideas, suggestions, and other feedback are most welcome.
