VDB-125069 · CVE-2018-3940 · Qualys 371229

Foxit PDF Reader 9.1.0.5096 Javascript Engine PDF Document use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.3$0-$5k0.00

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.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

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CVSSv3info

VulDB Meta Base Score: 7.4
VulDB 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): 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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EPSS Percentile: 🔍

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Nessus ID: 118093
Nessus Name: Foxit Reader < 9.3 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/01/2018 🔍
09/28/2018 +269 days 🔍
10/01/2018 +3 days 🔍
10/08/2018 +6 days 🔍
10/08/2018 +0 days 🔍
10/09/2018 +1 days 🔍
10/12/2018 +3 days 🔍
05/23/2023 +1684 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: securitytracker.com
Status: Confirmed

CVE: CVE-2018-3940 (🔍)
SecurityTracker: 1041769

See also: 🔍

Entryinfo

Created: 10/09/2018 08:38
Updated: 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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