Mozilla Firefox up to 65.x Image createImageBitmap origin validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 65.x. The affected element is the function createImageBitmap of the component Image Handler. Such manipulation leads to origin validation. This vulnerability is uniquely identified as CVE-2019-9797. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 65.x (Web Browser). It has been rated as critical. Affected by this issue is the function createImageBitmap of the component Image Handler. The manipulation with an unknown input leads to a origin validation vulnerability. Using CWE to declare the problem leads to CWE-346. The product does not properly verify that the source of data or communication is valid. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Cross-origin images can be read in violation of the same-origin policy by exporting an image after using createImageBitmap to read the image and then rendering the resulting bitmap image within a canvas element. This vulnerability affects Firefox < 66.

The bug was discovered 03/19/2019. The weakness was disclosed 04/26/2019 (Website). The advisory is available at seclists.org. This vulnerability is handled as CVE-2019-9797 since 03/14/2019. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 38 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 246384 (Linux Distros Unpatched Vulnerability : CVE-2019-9797), which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 197402 (Ubuntu Security Notification for Firefox Vulnerabilities (USN-3918-1)).

Upgrading to version 66.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (246384). The entries VDB-134135, VDB-134154, VDB-134164 and VDB-134166 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

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

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Origin validation
CWE: CWE-346 / CWE-345
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 246384
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2019-9797

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 66.0

Timelineinfo

03/14/2019 🔍
03/19/2019 +5 days 🔍
04/26/2019 +38 days 🔍
04/27/2019 +1 days 🔍
08/09/2025 +2296 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: RHSA-2019:1265
Status: Confirmed

CVE: CVE-2019-9797 (🔍)
GCVE (CVE): GCVE-0-2019-9797
GCVE (VulDB): GCVE-100-134162
See also: 🔍

Entryinfo

Created: 04/27/2019 09:06
Updated: 08/09/2025 06:02
Changes: 04/27/2019 09:06 (62), 06/03/2020 07:00 (2), 09/07/2023 17:53 (4), 08/09/2025 06:02 (16)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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