Use-after-free in Foxit Reader 12.1.2.15332 via PDF JS arbitrary code execution
CVE-2023-33876 Published on July 19, 2023
A use-after-free vulnerability exists in the way Foxit Reader 12.1.2.15332 handles destroying annotations. Specially crafted Javascript code inside a malicious PDF document can trigger reuse of a previously freed object, which can lead to memory corruption and result in arbitrary code execution. An attacker needs to trick the user into opening the malicious file to trigger this vulnerability. Exploitation is also possible if a user visits a specially crafted, malicious site if the browser plugin extension is enabled.
Vulnerability Analysis
CVE-2023-33876 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. Public availability of a proof of concept (POC) exploit exists for CVE-2023-33876. The potential impact of an exploit of this vulnerability is considered to be very high.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2023-33876 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2023-33876
stack.watch emails you whenever new vulnerabilities are published in Foxit Pdf Reader or Foxit Software Foxit Reader. Just hit a watch button to start following.
Affected Versions
Foxit Reader Version 12.1.2.15332 is affected by CVE-2023-33876Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.