Adobe Reader JavaScript Methods Memory Corruption

Secunia ID	SA34924
CVE-ID	CVE-2009-1492, CVE-2009-1493
Release Date	28 Apr 2009
Last Change	13 May 2009
Criticality	Highly Critical Typically used for remotely exploitable vulnerabilities that can lead to system compromise. Successful exploitation does not normally require any interaction but there are no known exploits available at the time of disclosure. Such vulnerabilities can exist in services like FTP, HTTP, and SMTP or in client systems like email programs or browsers.
Solution Status	Partial Fix
Software	Adobe Acrobat 3D 8.x Adobe Acrobat 7 Professional Adobe Acrobat 7.x Adobe Acrobat 8 Professional Adobe Acrobat 8.x Adobe Acrobat 9.x Adobe Reader 7.x Adobe Reader 8.x Adobe Reader 9.x
Where	From remote "From remote" describes other vulnerabilities where the attack vector doesn't require access to the system or a local network. This category covers services that are acceptable to expose to the Internet (e.g. HTTP, HTTPS, SMTP). It also covers client applications used on the Internet and certain vulnerabilities where it is reasonable to assume that a security conscious user can be tricked into performing certain actions.
Impact	System access This covers vulnerabilities where malicious people are able to gain system access and execute arbitrary code with the privileges of a local user.
Description	Arr1val has discovered two vulnerabilities in Adobe Reader, which can be exploited by malicious people to potentially compromise a user's system. 1) An error when processing calls to the "getAnnots()" JavaScript method can be exploited to corrupt memory via a specially crafted PDF file. 2) An error when processing calls to the "customDictionaryOpen()" JavaScript method can be exploited to corrupt memory via a specially crafted PDF file. Successful exploitation may allow execution of arbitrary code. The vulnerabilities are confirmed in version 9.1 for Linux. Other versions may also be affected.
Solution	Update to a fixed version. Please see the vendor's advisory for more information. Adobe Reader/Acrobat 9.x: Update to version 9.1.1. Adobe Reader/Acrobat 8.x: Update to version 8.1.5. Adobe Reader/Acrobat 7.x for Windows: Update to version 7.1.2. Adobe Reader/Acrobat 7.x for Macintosh: Updates will reportedly be available before the end of June. Disable JavaScript support.
Reported by	Arr1val
Original Advisory	Arr1val: http://packetstorm.linuxsecurity.com/0904-exploits/spell.txt http://packetstorm.linuxsecurity.com/0904-exploits/getannots.txt Adobe: http://blogs.adobe.com/psirt/2009/04/update_on_adobe_reader_issue.html http://www.adobe.com/support/security/advisories/apsa09-02.html http://www.adobe.com/support/security/bulletins/apsb09-06.html