CVE-2018-3957 Use after free in Foxit PDF Reader
A use-after-free in Foxit PDF Reader allows attackers to execute arbitrary code by tricking users into opening malicious files or visiting malicious sites.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-3957?
CVE-2018-3957 is a high-severity use after free vulnerability in Foxitsoftware Phantompdf, published on 2 Oct 2018. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
A use-after-free vulnerability exists in the JavaScript engine of Foxit Software's Foxit PDF Reader version 9.1.0.5096. A use-after-free condition can occur when accessing the Keywords property of the this.info object. An attacker needs to trick the user to open the malicious file to trigger this vulnerability. If the browser plugin extension is enabled, visiting a malicious site can also trigger the vulnerability.
Weakness: CWE-416
Which versions are affected by CVE-2018-3957?
It affects 2 products.
Products include Foxitsoftware Phantompdf, Foxitsoftware Reader.
How do I fix CVE-2018-3957?
No fix has been published for CVE-2018-3957 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-2018-3957 being exploited?
There is no known exploitation of CVE-2018-3957 in the wild and no public exploit code.
Other vulnerabilities in Foxitsoftware Phantompdf
Sources
Also known as GHSA-4vh6-gq86-w84r.