CVE-2017-11239 : Exploit Details and Defense Strategies

Adobe Acrobat Reader versions 2017.009.20058 and earlier, 2017.008.30051 and earlier, 2015.006.30306 and earlier, and 11.0.20 and earlier are affected by a memory corruption vulnerability in the image conversion engine when processing Enhanced Metafile Format (EMF) data related to text strings. This vulnerability could allow an attacker to execute arbitrary code.

Understanding CVE-2017-11239

Adobe Acrobat Reader is susceptible to a memory corruption vulnerability that could lead to arbitrary code execution when handling EMF data.

What is CVE-2017-11239?

The vulnerability in Adobe Acrobat Reader versions 2017.009.20058 and earlier, 2017.008.30051 and earlier, 2015.006.30306 and earlier, and 11.0.20 and earlier allows attackers to corrupt memory by exploiting the image conversion engine when processing EMF data associated with text strings.

The Impact of CVE-2017-11239

If successfully exploited, this vulnerability could result in the execution of arbitrary code on the affected system, potentially leading to unauthorized access or control.

Technical Details of CVE-2017-11239

Adobe Acrobat Reader is prone to a memory corruption vulnerability that could be exploited by attackers to execute arbitrary code.

Vulnerability Description

The vulnerability lies in the image conversion engine of Adobe Acrobat Reader, specifically when handling EMF data related to text strings.

Affected Systems and Versions

Adobe Acrobat Reader 2017.009.20058 and earlier
Adobe Acrobat Reader 2017.008.30051 and earlier
Adobe Acrobat Reader 2015.006.30306 and earlier
Adobe Acrobat Reader 11.0.20 and earlier

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating EMF data associated with text strings, leading to memory corruption and potential arbitrary code execution.

Mitigation and Prevention

To address CVE-2017-11239, users of Adobe Acrobat Reader should take immediate steps to mitigate the risk and implement long-term security practices.

Immediate Steps to Take

Update Adobe Acrobat Reader to the latest version to patch the vulnerability.
Exercise caution when opening files from untrusted sources.
Monitor vendor security advisories for updates and patches.

Long-Term Security Practices

Regularly update software and applications to ensure the latest security patches are in place.
Implement robust security measures such as firewalls and antivirus software.

Patching and Updates

Adobe has released patches to address the vulnerability in affected versions of Acrobat Reader. Users should promptly apply these updates to secure their systems.