Use After Free in Foxit Phantompdf
CVE-2019-6734
This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of Foxit PhantomPDF. 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 the setInterval method. By performing actions in JavaScript, an attacker can cause a pointer to be reused after it has been freed. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the current process. Was ZDI-CAN-7452.
Vulnerability class: Use-After-Free
EPSS: 0.042 (89.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N.
Affected products
- Foxit Phantompdf — versions 9.3.0.10826
- Foxitsoftware Phantompdf
- Foxitsoftware Reader
- Microsoft Windows
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (Patch, x_refsource_MISC, Vendor Advisory)
- zdi-disclosures@trendmicro.com (VDB Entry, Third Party Advisory, x_refsource_MISC)
Frequently asked questions
- What is CVE-2019-6734?
- CVE-2019-6734 is a medium-severity vulnerability in Foxit Phantompdf, classified under Use After Free. CVSS score: 6.5/10. Published 2019-03-21.
- How severe is CVE-2019-6734?
- Medium severity. CVSS v3 base score is 6.5 out of 10.