CVE-2020-35931 Other in n/a

High 7.8 Published Updated

Attackers can spoof certified PDF documents in Foxit Reader and PhantomPDF by exploiting a null value handling flaw in annotation dictionaries.

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-2020-35931?

CVE-2020-35931 is a high-severity vulnerability in Foxitsoftware Foxit Reader, published on 31 Dec 2020. 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

An issue was discovered in Foxit Reader before 10.1.1 (and before 4.1.1 on macOS) and PhantomPDF before 9.7.5 and 10.x before 10.1.1 (and before 4.1.1 on macOS). An attacker can spoof a certified PDF document via an Evil Annotation Attack because the products fail to consider a null value for a Subtype entry of the Annotation dictionary, in an incremental update.

Weakness: CWE-754

Which versions are affected by CVE-2020-35931?

It affects 2 products.

Products include Foxitsoftware Foxit Reader, Foxitsoftware Phantompdf.

How do I fix CVE-2020-35931?

No fix has been published for CVE-2020-35931 yet. Limit exposure of the affected software until one is available.

Is CVE-2020-35931 being exploited?

There is no known exploitation of CVE-2020-35931 in the wild and no public exploit code.

All Foxitsoftware Foxit Reader vulnerabilities

Sources

Also known as GHSA-xq8j-8h49-q9q4.

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