GLSA 200701-16: Adobe Acrobat Reader: Multiple vulnerabilities

http://security.gentoo.org/

Severity:	normal
Title:	Adobe Acrobat Reader: Multiple vulnerabilities
Date:	01/22/2007
Bugs:	#159874
ID:	200701-16

Synopsis

Adobe Acrobat Reader is vulnerable to remote code execution, Denial of Service, and cross-site scripting attacks.

Background

Adobe Acrobat Reader is a PDF reader released by Adobe.

Affected packages

Package	Vulnerable	Unaffected	Architecture(s)
app-text/acroread	< 7.0.9	>= 7.0.9	All supported architectures

Description

Adobe Acrobat Reader in stand-alone mode is vulnerable to remote code execution via heap corruption when loading a specially crafted PDF file.

The browser plugin released with Adobe Acrobat Reader (nppdf.so) does not properly handle URLs, and crashes if given a URL that is too long. The plugin does not correctly handle JavaScript, and executes JavaScript that is given as a GET variable to the URL of a PDF file. Lastly, the plugin does not properly handle the FDF, xml, xfdf AJAX request parameters following the # character in a URL, allowing for multiple cross-site scripting vulnerabilities.

Impact

An attacker could entice a user to open a specially crafted PDF file and execute arbitrary code with the rights of the user running Adobe Acrobat Reader. An attacker could also entice a user to browse to a specially crafted URL and either crash the Adobe Acrobat Reader browser plugin, execute arbitrary JavaScript in the context of the user's browser, or inject arbitrary HTML or JavaScript into the document being viewed by the user. Note that users who have emerged Adobe Acrobat Reader with the "nsplugin" USE flag disabled are not vulnerable to issues with the Adobe Acrobat Reader browser plugin.

Workaround

There is no known workaround at this time.

Resolution

All Adobe Acrobat Reader users should upgrade to the latest version:

    # emerge --sync
    # emerge --ask --oneshot --verbose ">=app-text/acroread-7.0.9"

References

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website: http://security.gentoo.org/glsa/glsa-200701-16.xml

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.