Foxit Reader up to 9.4 ConvertToPDF_x86.dll use after free

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Foxit Reader up to 9.4. This issue affects some unknown processing in the library ConvertToPDF_x86.dll. Performing a manipulation results in use after free. This vulnerability is cataloged as CVE-2019-6757. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Foxit Reader up to 9.4 (Document Reader Software). This affects an unknown code in the library ConvertToPDF_x86.dll. The manipulation with an unknown input leads to a use after free vulnerability. CWE is classifying the issue as CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Foxit Reader 9.4.16811. 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 ConvertToPDF_x86.dll. 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-7696.

The bug was discovered 04/19/2019. The weakness was shared 06/03/2019. This vulnerability is uniquely identified as CVE-2019-6757 since 01/24/2019. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 45 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 9.4.16811 eliminates this vulnerability.

The entries VDB-135913, VDB-135912, VDB-135911 and VDB-135910 are related to this item. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CNA Base Score: 7.8
CNA Vector (Zero Day Initiative): 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Reader 9.4.16811

Timelineinfo

01/24/2019 🔍
04/19/2019 +85 days 🔍
06/03/2019 +45 days 🔍
06/04/2019 +1 days 🔍
09/26/2023 +1575 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: zerodayinitiative.com
Status: Not defined

CVE: CVE-2019-6757 (🔍)
GCVE (CVE): GCVE-0-2019-6757
GCVE (VulDB): GCVE-100-135909
OSVDB: - Foxit Software Foxit Reader code execution

See also: 🔍

Entryinfo

Created: 06/04/2019 12:47
Updated: 09/26/2023 17:16
Changes: 06/04/2019 12:47 (41), 06/19/2020 07:30 (18), 09/26/2023 17:09 (4), 09/26/2023 17:16 (13)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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