CVE-2018-3843 Memory corruption in Foxit
A type confusion vulnerability in Foxit PDF Reader allows attackers to disclose sensitive memory or execute arbitrary code via malicious PDFs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2018-3843?
CVE-2018-3843 is a medium-severity memory corruption vulnerability in Foxitsoftware Foxit Reader, published on 19 Apr 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An exploitable type confusion vulnerability exists in the way Foxit PDF Reader version 9.0.1.1049 parses files with associated file annotations. A specially crafted PDF document can lead to an object of invalid type to be dereferenced, which can potentially lead to sensitive memory disclosure, and possibly to arbitrary code execution. An attacker needs to trick the user into opening 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-704
Which versions are affected by CVE-2018-3843?
It affects 1 product.
Products include Foxitsoftware Foxit Reader.
How do I fix CVE-2018-3843?
No fix has been published for CVE-2018-3843 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2018-3843 being exploited?
There is no known exploitation of CVE-2018-3843 in the wild and no public exploit code.
Other vulnerabilities in Foxitsoftware Foxit Reader
Sources
Also known as GHSA-m673-jrm2-q2fh.