Published:2009/02/12  Last Updated:2009/02/12

JVN#29641290
Becky! Internet Mail buffer overflow vulnerability
Critical

Overview

Becky! Internet Mail contains a buffer overflow vulnerability.

Products Affected

  • Becky! Internet Mail Ver.2.48.02 and eariler

Description

Becky! Internet Mail is an email client software. Becky! Internet Mail contains a buffer overflow vulnerability as it does not properly handle read receipt requests.

Impact

If the user views a specially crafted email and allows a read receipt to be sent, arbitrary code may be executed.

Solution

Update the Software
Apply the latest updates provided by the vendor.

Vendor Status

Vendor Status Last Update Vendor Notes
RimArts, Inc. vulnerable 2009/02/12

References

  1. IPA
    Security Alert for Becky! Internet Mail Vulnerability

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2009.02.12  Critical

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Mid-High

Description of each analysis measures

Credit

Yuji Ukai of Fourteenforty Research Institute, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendor under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2009-0569
JVN iPedia JVNDB-2009-000011