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Adobe Reader and Adobe Acrobat JBIG2 Image Stream Remote Code Execution

Notification Type:	IBM Internet Security Systems Protection Alert
Notification Date:	Feb. 20, 2009
Notification Version:	1.6

Name:	Adobe Reader and Adobe Acrobat JBIG2 Image Stream Remote Code Execution
Public disclosure/ In the wild date:	Feb. 13, 2009 (targeted exploitation), Feb. 20, 2009 (vendor vuln disclosure), Feb. 16, 2009 (integration into spam/exploit bots)
Aliases:	Adobe Security Bulletin APSB09-01
CVE:	CVE-2009-0658
Description:	Adobe Acrobat Reader and Adobe Acrobat 9.0 and earlier are vulnerable to a vulnerability that would allow an attacker to execute arbitrary code on a remote system by enticing a user to open a specially-crafted PDF file. Targeted exploitation was reported on Feb. 13, 2009, and public proof-of-concept exploits are expected over the weekend of Feb. 20th. On March 16, 2009, exploits were picked up in the wild from spam/exploit bots and were no longer limited to targeted exploitation.

ISS Coverage

Product	Content Version
Network Sensor 7.0 Proventia A Proventia IPS (G/GX) Server Sensor 7.0 Proventia Multifunction Appliance Proventia Mail Proventia Server (Linux)	XPU 28.020
Proventia Server (Windows) Proventia Desktop	2160
Enterprise Scanner	1.51
Internet Scanner	7.2.68

Propagation Techniques	ISS Protection	Available
remote exploit	PDF_JavaScript_Exploit PDF_JavaScript_Detected JavaScript_NOOP_Sled JavaScript_Shellcode_Detected	Feb 13, 2008
	JBIG2_Adobe_Index_Error JBIG2_Adobe_Integer_Overflow	Mar 10, 2009

Detection Techniques	ISS Detection	Available
remote scanning	AdobeAcrobatReaderImageBo	March 11, 2009 (ES) April 14, 2009 (IS)

Detailed Description

Business Impact:	This vulnerability could result in remote code execution if a victim opens a specially crafted Adobe Acrobat (.pdf) document in an affected version of Adobe Reader or Adobe Acrobat. As always, ensure that documents like PDFs come from a trusted source before opening them.
CVSS:	Base Score:		9.3
		Access Vector:	Remote
		Access Complexity:	Medium
		Authentication:	None
		Confidentiality Impact:	Complete
		Integrity Impact:	Complete
		Availability Impact:	Complete
		Impact Bias:	Normal
	Adjusted Temporal Score:		8.5
		Exploitability:	High
		Remediation Level:	Official fix
		Report Confidence:	Confirmed
Affected Products:	For a full list of affected software and versions, see references below.
Technical Description:	Adobe Acrobat and Adobe Reader are vulnerable to a buffer overflow, caused by improper bounds checking of embedded JBIG2 image streams. By persuading a victim to open a specially-crafted .PDF file, a remote attacker could overflow a buffer and execute arbitrary code on the system with privileges of the victim or cause the application to crash.
Remediation:	Patches were made available on March 10, 2009. IBM ISS customers should also enable protection described in this alert.

References

Adobe:	http://www.adobe.com/support/security/advisories/apsa09-01.html
XFDB:	http://xforce.iss.net/xforce/xfdb/48825
FrequencyX:	http://blogs.iss.net/archive/JBIG2goingBIG.html

Revision History

1.0	Initial publication.
1.1	Added an additional signature, updated CVSS score, and added XFDB reference.
1.2	Corrected links to Content Updates.
1.3	Added signature coverage for potential attack vectors.
1.4	Added information about active exploitation and patch availability. Also updated CVSS score.
1.5	Added FrequencyX blog reference.
1.6	Added Enterprise Scanner and Internet Scanner coverage.

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