Mozilla Firefox up to 57.x Input Element use after free

CVSS Meta Temp Score
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CTI Interest Score
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7.4$0-$5k0.00

Summaryinfo

A vulnerability was found in Mozilla Firefox up to 57.x. It has been declared as problematic. Impacted is an unknown function of the component Input Element Handler. The manipulation results in use after free. This vulnerability is cataloged as CVE-2018-5098. The attack may be launched remotely. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 57.x (Web Browser). It has been classified as problematic. Affected is some unknown processing of the component Input Element Handler. 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 availability.

The bug was discovered 01/23/2018. The weakness was shared 01/23/2018 by xisigr with Tencent as MFSA 2018-02 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is traded as CVE-2018-5098 since 01/03/2018. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 106790 (Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : firefox regressions (USN-3544-2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Ubuntu Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370739 (Mozilla Firefox Multiple Vulnerabilities (mfsa2018-03 mfsa2018-02)).

Upgrading to version 58.0 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (106790), SecurityFocus (BID 102783†) and SecurityTracker (ID 1040270†). The entries VDB-112518, VDB-112519, VDB-112520 and VDB-112521 are related to this item. Once again VulDB remains the best source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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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: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 106790
Nessus Name: Ubuntu 14.04 LTS / 16.04 LTS / 17.10 : firefox regressions (USN-3544-2)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 66413
OpenVAS Name: CentOS Update for firefox CESA-2018:0122 centos6
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: Firefox 58.0

Timelineinfo

01/03/2018 🔍
01/23/2018 +20 days 🔍
01/23/2018 +0 days 🔍
01/23/2018 +0 days 🔍
01/23/2018 +0 days 🔍
01/24/2018 +1 days 🔍
01/28/2018 +4 days 🔍
02/13/2018 +16 days 🔍
06/11/2018 +117 days 🔍
11/26/2025 +2725 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2018-02
Researcher: Looben Yang, Nils, and xisigr (xisigr)
Organization: Tencent
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5098 (🔍)
GCVE (CVE): GCVE-0-2018-5098
GCVE (VulDB): GCVE-100-112524

OVAL: 🔍

SecurityFocus: 102783 - Mozilla Firefox and Firefox ESR Multiple Security Vulnerabilities
SecurityTracker: 1040270

See also: 🔍

Entryinfo

Created: 01/28/2018 10:17
Updated: 11/26/2025 06:37
Changes: 01/28/2018 10:17 (77), 12/30/2019 11:01 (10), 02/01/2021 19:39 (3), 02/01/2021 19:42 (1), 11/26/2025 06:37 (16)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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