April 13, 2010
Adobe Acrobat and Reader are prone to a heap-based buffer-overflow vulnerability because they fail to properly validate user-supplied input. Attackers can exploit this issue to execute arbitrary code in the context of the user running the application. Failed exploit attempts will result in a denial of service. The following products are affected: Adobe Reader 9.3.1 and prior for Windows, Macintosh, and UNIX Adobe Acrobat 9.3.1 and prior for Windows and Macintosh Adobe Reader 8.2.1 and prior for Windows and Macintosh Acrobat 8.2.1 and prior for Windows and Macintosh Note: This vulnerability was previously documented in BID 39329 (Adobe Acrobat and Reader April 2010 Multiple Remote Vulnerabilities) but has been given its own record to better document the issue.
- Adobe Acrobat 9.1.1
- Adobe Acrobat 9.2
- Adobe Acrobat 9.3
- Adobe Acrobat 9.3.1
- Adobe Acrobat Professional 8.0
- Adobe Acrobat Professional 8.1
- Adobe Acrobat Professional 8.1.1
- Adobe Acrobat Professional 8.1.2
- Adobe Acrobat Professional 8.1.2 Security Update 1
- Adobe Acrobat Professional 8.1.3
- Adobe Acrobat Professional 8.1.4
- Adobe Acrobat Professional 8.1.6
- Adobe Acrobat Professional 8.1.7
- Adobe Acrobat Professional 8.2
- Adobe Acrobat Professional 8.2.1
- Adobe Acrobat Professional 9.3
- Adobe Acrobat Professional 9.3.1
- Adobe Acrobat Standard 8.0
- Adobe Acrobat Standard 8.1
- Adobe Acrobat Standard 8.1.1
- Adobe Acrobat Standard 8.1.2
- Adobe Acrobat Standard 8.1.3
- Adobe Acrobat Standard 8.1.4
- Adobe Acrobat Standard 8.1.6
- Adobe Acrobat Standard 8.1.7
- Adobe Acrobat Standard 8.2
- Adobe Acrobat Standard 8.2.1
- Adobe Acrobat Standard 9
- Adobe Acrobat Standard 9.1
- Adobe Acrobat Standard 9.1.2
- Adobe Acrobat Standard 9.1.3
- Adobe Acrobat Standard 9.2
- Adobe Acrobat Standard 9.3
- Adobe Acrobat Standard 9.3.1
- Adobe Reader 8.0
- Adobe Reader 8.1
- Adobe Reader 8.1.1
- Adobe Reader 8.1.2
- Adobe Reader 8.1.2 Security Update 1
- Adobe Reader 8.1.3
- Adobe Reader 8.1.4
- Adobe Reader 8.1.5
- Adobe Reader 8.1.6
- Adobe Reader 8.1.7
- Adobe Reader 8.2
- Adobe Reader 8.2.1
- Adobe Reader 9
- Adobe Reader 9.1
- Adobe Reader 9.1.1
- Adobe Reader 9.1.2
- Adobe Reader 9.1.3
- Adobe Reader 9.2
- Adobe Reader 9.3
- Adobe Reader 9.3.1
- Gentoo Linux
- Redhat Desktop Extras 4
- Redhat Enterprise Linux AS Extras 4
- Redhat Enterprise Linux Desktop Supplementary 5 Client
- Redhat Enterprise Linux ES Extras 4
- Redhat Enterprise Linux Extras 4
- Redhat Enterprise Linux Supplementary 5 Server
- Redhat Enterprise Linux WS Extras 4
- SuSE Suse Linux Enterprise Desktop 10 SP2
- SuSE Suse Linux Enterprise Desktop 10 SP3
- SuSE Suse Linux Enterprise Desktop 11
- SuSE openSUSE 11.0
- SuSE openSUSE 11.1
- SuSE openSUSE 11.2
Block external access at the network boundary, unless external parties require service.
If global access isn't needed, filter access to the affected computer at the network boundary. Restricting access to only trusted computers and networks might greatly reduce the likelihood of a successful exploit.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity. This includes but is not limited to requests that include NOP sleds and unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from a successful exploit.
Do not accept or execute files from untrusted or unknown sources.
To limit exposure to these and other latent vulnerabilities, never handle files that originate from unfamiliar or untrusted sources.
Do not follow links provided by unknown or untrusted sources.
To reduce the likelihood of attacks, never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.
Implement multiple redundant layers of security.
As an added precaution, deploy memory-protection schemes (such as nonexecutable stack/heap configuration and randomly mapped memory segments). This may complicate exploits of memory-corruption vulnerabilities.
Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, run applications with the minimal amount of privileges required for functionality.
Updates are available. Please see the references for more information.
Vulnerability Research Team, TELUS Security Labs
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