Denial of Service (DoS) Affecting org.apache.pdfbox:pdfbox Open this link in a new tab package, versions [2.0.0, 2.0.24)
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13 Jun 2021
13 Jun 2021
How to fix?
org.apache.pdfbox:pdfbox to version 2.0.24 or higher.
org.apache.pdfbox:pdfbox is an open source Java tool for working with PDF documents.
Affected versions of this package are vulnerable to Denial of Service (DoS) via a crafted PDF file that may trigger an infinite loop during parsing.
Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.
Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.
One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.
When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.
Two common types of DoS vulnerabilities:
High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.
Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm