Foxit PDF Reader 9.1.0.5096 Javascript Engine PDF Document use after free
CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.3 | $0-$5k | 0.00 |
A vulnerability was found in Foxit PDF Reader 9.1.0.5096 (Document Reader Software) and classified as critical. This issue affects an unknown function of the component Javascript Engine. The manipulation as part of a PDF Document leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability. The summary by CVE is:
An exploitable use-after-free vulnerability exists in the JavaScript engine of Foxit Software's PDF Reader, version 9.1.0.5096. A specially crafted PDF document can trigger a previously freed object in memory to be reused. An attacker needs to trick the user to open the malicious file to trigger.
The bug was discovered 10/01/2018. The weakness was shared 10/08/2018 (Website). The advisory is shared at securitytracker.com. The identification of this vulnerability is CVE-2018-3940 since 01/01/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available.
The vulnerability scanner Nessus provides a plugin with the ID 118093 (Foxit Reader < 9.3 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 371229 (Foxit Reader and PhantomPDF Multiple Vulnerabilities).
Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.
The vulnerability is also documented in the vulnerability database at Tenable (118093). The entries 124607, 124710, 124711 and 124712 are related to this item.
Product
Type
Vendor
Name
Version
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.4VulDB Meta Temp Score: 7.3
VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
NVD Base Score: 7.8
NVD Vector: 🔍
CNA Base Score: 8.0
CNA Vector (Talos): 🔍
CVSSv2
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Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔍
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VulDB Reliability: 🔍
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Exploiting
Class: Use after freeCWE: CWE-416 / CWE-119
ATT&CK: Unknown
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
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Today | unlock | unlock | unlock | unlock |
Nessus ID: 118093
Nessus Name: Foxit Reader < 9.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Qualys ID: 🔍
Qualys Name: 🔍
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Timeline
01/01/2018 🔍09/28/2018 🔍
10/01/2018 🔍
10/08/2018 🔍
10/08/2018 🔍
10/09/2018 🔍
10/12/2018 🔍
05/23/2023 🔍
Sources
Vendor: foxitsoftware.comAdvisory: securitytracker.com⛔
Status: Confirmed
CVE: CVE-2018-3940 (🔍)
SecurityTracker: 1041769
See also: 🔍
Entry
Created: 10/09/2018 08:38Updated: 05/23/2023 10:30
Changes: 10/09/2018 08:38 (70), 03/31/2020 18:12 (3), 05/23/2023 10:25 (4), 05/23/2023 10:30 (12)
Complete: 🔍
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