Use After Free in Foxit Reader
CVE-2018-9951
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.0.0.29935. 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 CPDF_Object 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 vulnerability to execute code under the context of the current process. Was ZDI-CAN-5414.
Vulnerability class: Use-After-Free
EPSS: 0.048 (91.0th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Foxit Reader — versions 9.0.0.29935
- Foxitsoftware Foxit_reader
- Foxitsoftware Phantompdf
Weakness classification (CWE)
Public proof-of-concept exploits
References
- zdi-disclosures@trendmicro.com (x_refsource_CONFIRM, Patch, Vendor Advisory)
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2018-9951?
- CVE-2018-9951 is a high-severity vulnerability in Foxit Reader, classified under Use After Free. CVSS score: 8.8/10. Published 2018-05-17.
- How severe is CVE-2018-9951?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2018-9951 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.