Mozilla Firefox up to 60 Skia integer coercion

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

Summaryinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 60. The impacted element is an unknown function of the component Skia. Such manipulation leads to integer coercion. This vulnerability is referenced as CVE-2018-12371. It is possible to launch the attack remotely. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Mozilla Firefox up to 60 (Web Browser). It has been rated as critical. Affected by this issue is an unknown function of the component Skia. The manipulation with an unknown input leads to a integer coercion vulnerability. Using CWE to declare the problem leads to CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. Impacted is confidentiality, integrity, and availability. CVE summarizes:

An integer overflow vulnerability in the Skia library when allocating memory for edge builders on some systems with at least 16 GB of RAM. This results in the use of uninitialized memory, resulting in a potentially exploitable crash. This vulnerability affects Firefox ESR < 60.1, Thunderbird < 60, and Firefox < 61.

The bug was discovered 06/26/2018. The weakness was published 06/26/2018 by Abdulrahman Alqabandi (OSS-Fuzz) as MFSA 2018-15 as confirmed security advisory (Website). The advisory is available at mozilla.org. This vulnerability is handled as CVE-2018-12371 since 06/14/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 111980 (Mozilla Thunderbird < 60.0 Multiple Vulnerabilities (macOS)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family MacOS X Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 171560 (OpenSUSE Security Update for MozillaThunderbird (openSUSE-SU-2018:2658-1)).

Upgrading to version 61 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 (111980), SecurityFocus (BID 104560†) and SecurityTracker (ID 1041193†). Similar entries are available at VDB-120044, VDB-120045, VDB-120046 and VDB-120047. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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

NVD Base Score: 8.8
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: Integer coercion
CWE: CWE-192 / CWE-189
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: 111980
Nessus Name: Mozilla Thunderbird < 60.0 Multiple Vulnerabilities (macOS)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

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 61

Timelineinfo

06/14/2018 🔍
06/26/2018 +12 days 🔍
06/26/2018 +0 days 🔍
06/26/2018 +0 days 🔍
06/26/2018 +0 days 🔍
06/27/2018 +1 days 🔍
06/28/2018 +1 days 🔍
08/20/2018 +53 days 🔍
11/26/2025 +2655 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2018-15
Researcher: Abdulrahman Alqabandi (OSS-Fuzz)
Status: Confirmed

CVE: CVE-2018-12371 (🔍)
GCVE (CVE): GCVE-0-2018-12371
GCVE (VulDB): GCVE-100-120050

OVAL: 🔍

SecurityFocus: 104560 - Mozilla Firefox and Firefox ESR Multiple Security Vulnerabilities
SecurityTracker: 1041193

See also: 🔍

Entryinfo

Created: 06/28/2018 09:11
Updated: 11/26/2025 10:24
Changes: 06/28/2018 09:11 (54), 02/23/2020 07:46 (17), 11/26/2025 10:24 (34)
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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