Spyware, Viruses, & Security forum

General discussion

Vulnerabilities - Aug. 14, 2004

Adobe Acrobat Buffer Overflow in 'pdf.ocx'

SecurityTracker URL: http://securitytracker.com/id?1010952
Impact: Execution of arbitrary code via network, User access via network

Vendor Confirmed: Yes

Advisory: iDEFENSE

Version(s): 6.0.2 and prior versions

Description: iDEFENSE reported a buffer overflow vulnerability in an ActiveX component of Adobe Acrobat. A remote user can execute arbitrary code on the target user's system.

It is reported that a remote user can create a PDF file with a specially crafted embedded HTTP link so that when the file is opened, the buffer overflow will be triggered.

If the request is made to a web server (e.g., IIS, Netscape Enterprise Server) that truncates the request at the null byte (%00), the ActiveX component will overflow a buffer within the RTLHeapFree() function. Arbitrary code can be executed with the privileges of the target user.

The vendor was reportedly notified on April 14, 2004.

Rafel Ivgi is credited with discovering this flaw.

The original advisory is available at:

http://www.idefense.com/application/poi/display?id=126&type=vulnerabilities

Impact: A remote user can execute arbitrary code on the target system with the privileges of the target user.

Solution: iDEFENSE reported that you can modify the Adobe Acrobat settings to prevent PDF files from being automatically opened when accessed via a web browser (under Edit, Preferences, uncheck "Display PDF in browser")

iDEFENSE also reported that Adobe may have attempted to silently fix this flaw in version 6.0.2, but was unsuccessful.

Vendor URL: www.adobe.com/
Cause: Boundary error
Underlying OS: Windows (Any)

Discussion is locked
You are posting a reply to: Vulnerabilities - Aug. 14, 2004
The posting of advertisements, profanity, or personal attacks is prohibited. Please refer to our CNET Forums policies for details. All submitted content is subject to our Terms of Use.
Track this discussion and email me when there are updates

If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.

You are reporting the following post: Vulnerabilities - Aug. 14, 2004
This post has been flagged and will be reviewed by our staff. Thank you for helping us maintain CNET's great community.
Sorry, there was a problem flagging this post. Please try again now or at a later time.
If you believe this post is offensive or violates the CNET Forums' Usage policies, you can report it below (this will not automatically remove the post). Once reported, our moderators will be notified and the post will be reviewed.

Popular Forums

icon
Computer Newbies 10,686 discussions
icon
Computer Help 54,365 discussions
icon
Laptops 21,181 discussions
icon
Networking & Wireless 16,313 discussions
icon
Phones 17,137 discussions
icon
Security 31,287 discussions
icon
TVs & Home Theaters 22,101 discussions
icon
Windows 7 8,164 discussions
icon
Windows 10 2,657 discussions

GRAMMYS 2019

Here's Everything to Know About the 2019 Grammys

Find out how to watch the Grammy Awards if you don't have cable and more.