Virtual Event: Threat Detection and Incident Response Summit - Watch Sessions
Connect with us

Hi, what are you looking for?



OpenJPEG Flaw Allows Code Execution via Malicious Image Files

An update released last week for the OpenJPEG library addresses several bugs and important security issues, including a flaw that can be exploited to execute arbitrary code using specially crafted image files.

An update released last week for the OpenJPEG library addresses several bugs and important security issues, including a flaw that can be exploited to execute arbitrary code using specially crafted image files.

OpenJPEG is an open-source library designed for encoding and decoding JPEG2000 images, a format that is often used to embed image files inside PDF documents. OpenJPEG is used by several popular PDF readers, including PDFium, the default PDF viewer in Google Chrome.

Cisco Talos researchers discovered that OpenJPEG is plagued by an out-of-bounds heap write issue. The vulnerability allows an attacker to execute arbitrary code on the targeted user’s system if they can trick the victim into opening a specially crafted JPEG2000 image or a PDF document containing such a file.

In an attack scenario described by experts, the attacker attaches a malicious file to an email, or uploads it to a file hosting service, such as Dropbox or Google Drive, and sends the link to the victim.

“Due to an error while parsing mcc records in the jpeg2000 file, out of bounds memory can be accessed resulting in an erroneous read and write of adjacent heap area memory,” Cisco explained in its advisory. “Careful manipulation of heap layout and can lead to further heap metadata process memory corruption ultimately leading to code execution under attacker control.”

The vulnerability was reported to OpenJPEG developers in late July and it was patched last week with the release of version 2.1.2. The issue is tracked as CVE-2016-8332 and it has been assigned a CVSS score of 7.5, which puts it in the high severity category.

This is not the first time Cisco Talos researchers have found a vulnerability related to OpenJPEG. In June, experts disclosed a flaw in the library that affected only the PDFium viewer in Chrome. The weakness did not impact standalone OpenJPEG builds as it was caused by a process specific to Google’s web browser.

Advertisement. Scroll to continue reading.

In the past months, Cisco also disclosed vulnerabilities affecting the Lhasa, 7-Zip and Libarchive libraries.

Related: “Libotr” Library Flaw Exposes Popular IM Apps

Related: Remote Code Execution Flaw Patched in glibc Library

Written By

Eduard Kovacs (@EduardKovacs) is a contributing editor at SecurityWeek. He worked as a high school IT teacher for two years before starting a career in journalism as Softpedia’s security news reporter. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering.

Click to comment

Daily Briefing Newsletter

Subscribe to the SecurityWeek Email Briefing to stay informed on the latest threats, trends, and technology, along with insightful columns from industry experts.

SecurityWeek’s Threat Detection and Incident Response Summit brings together security practitioners from around the world to share war stories on breaches, APT attacks and threat intelligence.


Securityweek’s CISO Forum will address issues and challenges that are top of mind for today’s security leaders and what the future looks like as chief defenders of the enterprise.


Expert Insights

Related Content


Less than a week after announcing that it would suspended service indefinitely due to a conflict with an (at the time) unnamed security researcher...

Data Breaches

OpenAI has confirmed a ChatGPT data breach on the same day a security firm reported seeing the use of a component affected by an...

Risk Management

The supply chain threat is directly linked to attack surface management, but the supply chain must be known and understood before it can be...


The latest Chrome update brings patches for eight vulnerabilities, including seven reported by external researchers.


Patch Tuesday: Microsoft warns vulnerability (CVE-2023-23397) could lead to exploitation before an email is viewed in the Preview Pane.


Apple has released updates for macOS, iOS and Safari and they all include a WebKit patch for a zero-day vulnerability tracked as CVE-2023-23529.

IoT Security

A group of seven security researchers have discovered numerous vulnerabilities in vehicles from 16 car makers, including bugs that allowed them to control car...

Application Security

Drupal released updates that resolve four vulnerabilities in Drupal core and three plugins.