Mozilla Firefox up to 59.0.3 Leightweight Theme permission

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Mozilla Firefox up to 59.0.3. The affected element is an unknown function of the component Leightweight Theme Handler. Such manipulation leads to permission. This vulnerability is documented as CVE-2018-5168. The attack can be executed remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Mozilla Firefox up to 59.0.3 (Web Browser). Affected by this issue is an unknown part of the component Leightweight Theme Handler. The manipulation with an unknown input leads to a permission vulnerability. Using CWE to declare the problem leads to CWE-275. Impacted is confidentiality, integrity, and availability.

The bug was discovered 05/09/2018. The weakness was released 05/09/2018 by Ronald Crane (Alex) with Dell as MFSA 2018-11 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is handled as CVE-2018-5168 since 01/03/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1222.

The vulnerability scanner Nessus provides a plugin with the ID 110109 (Oracle Linux 6 : thunderbird (ELSA-2018-1726)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351295 (Amazon Linux Security Advisory for thunderbird: ALAS2-2018-1032).

Upgrading to version 60.0 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 (110109), SecurityFocus (BID 104136†) and SecurityTracker (ID 1040896†). Entries connected to this vulnerability are available at VDB-117589, VDB-117590, VDB-117591 and VDB-117592. Once again VulDB remains the best source for vulnerability data.

Productinfo

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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: Permission
CWE: CWE-275 / CWE-266
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: 110109
Nessus Name: Oracle Linux 6 : thunderbird (ELSA-2018-1726)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 61602
OpenVAS Name: Debian LTS Advisory ([SECURITY] [DLA 1376-1] firefox-esr security update)
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 60.0

Timelineinfo

01/03/2018 🔍
05/09/2018 +126 days 🔍
05/09/2018 +0 days 🔍
05/09/2018 +0 days 🔍
05/09/2018 +0 days 🔍
05/10/2018 +1 days 🔍
05/11/2018 +1 days 🔍
05/25/2018 +14 days 🔍
06/11/2018 +16 days 🔍
11/26/2025 +2725 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2018-11
Researcher: Ronald Crane (Alex)
Organization: Dell
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5168 (🔍)
GCVE (CVE): GCVE-0-2018-5168
GCVE (VulDB): GCVE-100-117596

OVAL: 🔍

SecurityFocus: 104136 - Mozilla Firefox and Firefox ESR Multiple Security Vulnerabilities
SecurityTracker: 1040896

See also: 🔍

Entryinfo

Created: 05/11/2018 10:45
Updated: 11/26/2025 08:20
Changes: 05/11/2018 10:45 (78), 02/04/2020 11:07 (11), 03/11/2023 15:36 (4), 11/26/2025 08:20 (15)
Complete: 🔍
Cache ID: 216::103

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