Buffer overflow in Foxit Pdf Editor
CVE-2021-34971
Foxit PDF Reader JPG2000 File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader. 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 parsing of PDF files. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-14812.
Vulnerability class: Buffer Overflow
EPSS: 0.004 (31.2th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
Affected products
- Foxit Pdf_editor — versions 11.0.0.49893, 11.0.1.49938
- Foxit Pdf Reader — versions 11.0.1.49938
- Foxit Pdf_reader
- Microsoft Windows
Weakness classification (CWE)
References
- zdi-disclosures@trendmicro.com (x_research-advisory, Third Party Advisory)
- zdi-disclosures@trendmicro.com (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34971?
- CVE-2021-34971 is a high-severity vulnerability in Foxit Pdf Editor, classified under Heap-based Buffer Overflow. CVSS score: 7.8/10. Published 2024-05-07.
- How severe is CVE-2021-34971?
- High severity. CVSS v3 base score is 7.8 out of 10.