TITLE:
BlackBerry Enterprise Server PNG File Handling Vulnerability

SECUNIA ADVISORY ID:
SA18393

VERIFY ADVISORY:
http://secunia.com/advisories/18393/

CRITICAL:
Highly critical

IMPACT:
DoS, System access

WHERE:
>From remote

SOFTWARE:
BlackBerry Enterprise Server for Novell GroupWise 4.x
http://secunia.com/product/6715/
BlackBerry Enterprise Server for Exchange 4.x
http://secunia.com/product/4530/
BlackBerry Enterprise Server for Domino 4.x
http://secunia.com/product/4531/

DESCRIPTION:
FX has been reported a vulnerability in BlackBerry Enterprise Server,
which can be exploited by malicious people to cause a DoS (Denial of
Service) and potentially to compromise a vulnerable system.

The vulnerability is caused due to an unspecified error in the
BlackBerry Attachment Service when rendering malformed PNG image
attachments. This can be exploited to cause a heap-based buffer
overflow, which can cause BlackBerry users to be unable to view file
attachments and may allow arbitrary code execution on the server.

Successful exploitation requires that the user views a malicious PNG
attachment on a BlackBerry Handheld.

The vulnerability has been reported in version 4.0 through version
4.0 Service Pack 2.

SOLUTION:
Apply BlackBerry Enterprise Server 4.0 Service Pack 3.
https://www.blackberry.com/Downloads/

BlackBerry Enterprise Server 4.0 for Microsoft Exchange:
Apply Service Pack 3, then install Service Pack 3, Hotfix 1.

BlackBerry Enterprise Server 4.0 for IBM Lotus Domino/Novell
GroupWise:
Apply Service Pack 3.

PROVIDED AND/OR DISCOVERED BY:
FX, Phenoelit.

ORIGINAL ADVISORY:
http://www.blackberry.com/knowledgecenterpublic/livelink.exe/fetch/2000/8021/728075/728850/728215/?nodeid=1167794

OTHER REFERENCES:
US-CERT VU#646976:
http://www.kb.cert.org/vuls/id/646976

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About:
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