Use After Free in Foxit Phantompdf
CVE-2019-6776
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PhantomPDF 9.5.0.20723. 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 removeField method when processing watermarks within AcroForms. 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 code in the context of the current process. Was ZDI-CAN-8801.
Vulnerability class: Use-After-Free
EPSS: 0.039 (89.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Foxit Phantompdf — versions 9.5.0.20723
- Foxitsoftware Phantompdf
- Foxitsoftware Reader
- Microsoft Windows
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_refsource_MISC, Release Notes, Vendor Advisory)
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-6776?
- CVE-2019-6776 is a high-severity vulnerability in Foxit Phantompdf, classified under Use After Free. CVSS score: 7.8/10. Published 2019-10-04.
- How severe is CVE-2019-6776?
- High severity. CVSS v3 base score is 7.8 out of 10.