CVE-2021-34969 Foxit PDF Reader Annotation Use-After-Free Information Disclosure Vulnerability
Remote attackers can disclose sensitive information and potentially execute arbitrary code via a use-after-free flaw in Foxit PDF Reader.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2021-34969?
CVE-2021-34969 is a low-severity use after free vulnerability in Foxit Pdf Editor, published on 7 May 2024. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
Foxit PDF Reader Annotation Use-After-Free Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of Foxit PDF Reader. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the handling of Annotation objects. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the current process. Was ZDI-CAN-14622.
Weakness: CWE-416
Which versions are affected by CVE-2021-34969?
It affects 2 products.
Products include Foxit Pdf Editor, Foxit Pdf Reader.
How do I fix CVE-2021-34969?
No fix has been published for CVE-2021-34969 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-34969 being exploited?
There is no known exploitation of CVE-2021-34969 in the wild and no public exploit code.
Other vulnerabilities in Foxit Pdf Editor
Sources
Also known as GHSA-774h-92pf-hhf4.