Core Security - Corelabs Advisory
Lattice Diamond Programmer Buffer Overflow
1. *Advisory Information*
Title: Lattice Diamond Programmer Buffer Overflow
Advisory ID: CORE-2012-0530
Date published: 2012-06-21
Date of last update: 2012-06-21
Vendors contacted: Lattice Semiconductor Corporation
Release mode: User release
2. *Vulnerability Information*
Class: Buffer overflow [CWE-119]
Impact: Code execution
Remotely Exploitable: Yes
Locally Exploitable: No
CVE Name: CVE-2012-2614
3. *Vulnerability Description*
Lattice Diamond Programmer  is vulnerable to client-side attacks,
which can be exploited by remote attackers to run arbitrary code by
sending specially crafted '.xcf' files.
4. *Vulnerable packages*
. Diamond Programmer 1.4.2 for Windows.
. Older versions are probably affected too, but they were not checked.
5. *Non-vulnerable packages*
. Vendor did not provide this information.
6. *Vendor Information, Solutions and Workarounds*
The vendor did not reply any contact email sent by Core Security
Advisories Team. Contact Lattice for further information about this
issue . Given that this is a client-side vulnerability, affected
users should not open untrusted '.xcf' files using 'programmer.exe' nor
This vulnerability was discovered and researched by Daniel Kazimirow and
Ricardo Narvaja from Core Security Exploit Team.
8. *Technical Description / Proof of Concept Code*
This vulnerability can be exploited by opening a specially crafted
'.xcf' file from 'programmer.exe'. The module 'deployment.exe' may also
be vulnerable, but this possiblity was not researched any further.
The XML file showed at [Sec. 8.1] crashes 'programmer.exe' at the address:
00FB5E20 8A0402 MOV AL,BYTE PTR DS:[EDX+EAX]
00FB5E23 C2 0400 RETN 4
and overwrites the SEH chain (there is no SEH protection) with
'41414141', which is proof that the buffer was overflown. This means
that there is a buffer overflow vulnerability, and 'EIP' can be set to
an arbitrary value, allowing an attacker to take control of the machine.
8.1. *Proof of Concept*
<?xml version='1.0' encoding='utf-8' ?>
<!DOCTYPE ispXCF SYSTEM "IspXCF.dtd" >
9. *Report Timeline*
Core Security Technologies notifies Lattice Semiconductor Corporation of
the vulnerability. Publication date is set for June 26th, 2012.
Core notifies Lattice Semiconductor Corporation of the vulnerability.
Core notifies that the previous emails were not answered and requests
for a reply.
Vendor asks Core to remove their email addresses from Core's mailing lists.
Core requests an email address or any other security contact information
at Lattice in order to begin discussions in regards to the
vulnerability. No reply was received.
Advisory CORE-2012-0530 published.
 Lattice technical support, mailto:techsupport () latticesemi com
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Technologies and (c) 2011 CoreLabs, and are licensed under a Creative
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14. *PGP/GPG Keys*
This advisory has been signed with the GPG key of Core Security
Technologies advisories team, which is available for download at