TippingPoint Zero Day Initiative

Novell NetMail IMAP Verb Literal Heap Overflow Vulnerability

ZDI-06-053: December 22nd, 2006

CVE ID

Affected Vendors

Affected Products

Vulnerability Details

This vulnerability allows remote attackers to execute arbitrary code on affected versions of Novell NetMail. Authentication is not required to exploit this vulnerability.

The specific flaw exists in the NetMail IMAP service, imapd.exe. The service does not sufficiently validate user-input length values when literals are appended to IMAP verbs to specify a command continuation request. The memory allocated to store the additional data may be insufficient, leading to an exploitable heap-based buffer overflow.

Vendor Response

Novell has issued an update to correct this vulnerability. More details can be found at:

Disclosure Timeline

    2006-08-14 - Vulnerability reported to vendor
    2006-12-22 - Coordinated public release of advisory

Credit

This vulnerability was discovered by:
    Anonymous