CVE-2009-0510 in Acrobat
Summary
by MITRE
Heap-based buffer overflow in the JBIG2 filter in Adobe Reader 7 and Acrobat 7 before 7.1.3, Adobe Reader 8 and Acrobat 8 before 8.1.6, and Adobe Reader 9 and Acrobat 9 before 9.1.2 might allow remote attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2009-0511, CVE-2009-0512, CVE-2009-0888, and CVE-2009-0889.
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Analysis
by VulDB Data Team • 10/16/2018
The vulnerability identified as CVE-2009-0510 represents a critical heap-based buffer overflow affecting Adobe Reader and Acrobat software versions prior to specific patch releases. This flaw exists within the JBIG2 filter component that processes image data, specifically targeting memory allocation patterns that fail to properly validate input boundaries. The vulnerability manifests when the software processes specially crafted JBIG2 encoded images, creating conditions where attacker-controlled data can overwrite adjacent memory locations in the heap. This particular vulnerability operates independently from other related issues such as CVE-2009-0511 through CVE-2009-0889, indicating distinct code paths and exploitation mechanisms that require separate remediation approaches.
The technical implementation of this vulnerability stems from inadequate bounds checking within the JBIG2 decompression algorithm. When Adobe Reader or Acrobat encounters a malformed JBIG2 image file, the parsing routine fails to properly validate the size parameters of heap allocations, allowing subsequent data writes to exceed allocated buffer boundaries. This heap corruption can lead to arbitrary code execution with the privileges of the compromised application, typically resulting in full system compromise when the vulnerable software runs with elevated permissions. The vulnerability's remote exploitability means attackers can deliver malicious JBIG2 content through web browsers, email attachments, or other delivery mechanisms without requiring local access to the target system. The flaw specifically impacts versions 7.x through 9.x of Adobe's software suite, with patch releases 7.1.3, 8.1.6, and 9.1.2 respectively addressing the issue through improved input validation and memory management controls.
The operational impact of CVE-2009-0510 extends beyond simple privilege escalation to encompass complete system compromise and potential data exfiltration capabilities. Attackers leveraging this vulnerability can execute malicious code remotely, potentially installing backdoors, keyloggers, or other persistent malware components. The JBIG2 format's widespread use in document sharing and publishing creates numerous potential attack vectors, particularly in enterprise environments where Adobe Reader remains the default PDF viewer. Security professionals must consider that exploitation of this vulnerability aligns with techniques described in the attack pattern taxonomy under the MITRE ATT&CK framework, specifically within the execution and privilege escalation domains where adversaries leverage software vulnerabilities to gain unauthorized access. The vulnerability's classification under CWE-121 heap-based buffer overflow demonstrates the fundamental nature of memory safety issues that continue to plague software applications despite decades of security awareness and mitigation development.
Organizations should prioritize immediate patching of affected Adobe Reader and Acrobat installations to prevent exploitation attempts. The remediation process requires careful consideration of deployment timing to avoid disrupting critical business operations while ensuring adequate protection against active exploitation attempts. System administrators should implement network-based intrusion detection systems that can identify potential exploitation attempts through anomalous JBIG2 file processing patterns. Security monitoring should focus on detecting unusual memory allocation patterns or process behavior that might indicate heap corruption attempts. Additionally, user education programs should emphasize the importance of avoiding untrusted PDF content and maintaining updated software versions. The vulnerability's persistence across multiple software versions underscores the importance of comprehensive vulnerability management programs that address not only immediate patches but also long-term software lifecycle management strategies to prevent similar issues from arising in future software releases.