CVE-2021-34838
"Foxit PDF Reader Heap Corruption Remote Code Execution Vulnerability"
Description
This vulnerability allows remote attackers to execute arbitrary code on affected installations of Foxit PDF Reader 11.0.0.49893. 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 Annotation 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 in the context of the current process. Was ZDI-CAN-14019.
INFO
Published Date :
Aug. 4, 2021, 4:15 p.m.
Last Modified :
Feb. 8, 2022, 6:30 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
5.9
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-34838.
| URL | Resource |
|---|---|
| https://www.foxit.com/support/security-bulletins.html | Vendor Advisory |
| https://www.zerodayinitiative.com/advisories/ZDI-21-920/ | Third Party Advisory VDB Entry |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-34838 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-34838 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CPE Deprecation Remap by [email protected]
Feb. 08, 2022
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:foxitsoftware:pdf_reader:*:*:*:*:*:*:*:* versions from (including) 11.0.0.49893 OR *cpe:2.3:a:foxit:pdf_reader:*:*:*:*:*:*:*:* versions from (including) 11.0.0.49893 -
Initial Analysis by [email protected]
Aug. 05, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Changed Reference Type https://www.foxit.com/support/security-bulletins.html No Types Assigned https://www.foxit.com/support/security-bulletins.html Vendor Advisory Changed Reference Type https://www.zerodayinitiative.com/advisories/ZDI-21-920/ No Types Assigned https://www.zerodayinitiative.com/advisories/ZDI-21-920/ Third Party Advisory, VDB Entry Added CPE Configuration AND OR *cpe:2.3:a:foxitsoftware:pdf_editor:*:*:*:*:*:*:*:* versions up to (including) 10.1.4.37651 *cpe:2.3:a:foxitsoftware:pdf_editor:11.0.0.49893:*:*:*:*:*:*:* *cpe:2.3:a:foxitsoftware:pdf_reader:*:*:*:*:*:*:*:* versions up to (including) 11.0.0.49893 OR cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-34838 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-34838
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
1.50 }} -0.20%
score
0.87299
percentile