Mozilla Firefox up to 60.0.1 Skia Library out-of-bounds write

CVSS Meta Temp Score
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CTI Interest Score
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7.2$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 60.0.1. This affects an unknown part of the component Skia Library. Executing a manipulation can lead to out-of-bounds write. This vulnerability appears as CVE-2018-6126. The attack may be performed from remote. In addition, an exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability has been found in Mozilla Firefox up to 60.0.1 (Web Browser) and classified as critical. This vulnerability affects an unknown function of the component Skia Library. The manipulation with an unknown input leads to a out-of-bounds write vulnerability. The CWE definition for the vulnerability is CWE-787. The product writes data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

A precision error in Skia in Google Chrome prior to 67.0.3396.62 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page.

The bug was discovered 05/29/2018. The weakness was presented 06/06/2018 by Ivan Fratric with Google Project Zero as MFSA 2018-14 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability was named CVE-2018-6126 since 01/23/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. Technical details are unknown but a public exploit is available.

It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 110254 (FreeBSD : chromium -- multiple vulnerabilities (427b0f58-644c-11e8-9e1b-e8e0b747a45a)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 370974 (Google Chrome Prior to 67.0.3396.62 Multiple Vulnerabilities).

Upgrading to version 60.0.2 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 Exploit-DB (45098), Tenable (110254), SecurityFocus (BID 104309†) and SecurityTracker (ID 1041046†). See VDB-128949, VDB-128950, VDB-128951 and VDB-128952 for similar entries. Once again VulDB remains the best source for vulnerability data.

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: 7.2

VulDB Base Score: 6.3
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds write
CWE: CWE-787 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 110254
Nessus Name: FreeBSD : chromium -- multiple vulnerabilities (427b0f58-644c-11e8-9e1b-e8e0b747a45a)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 66169
OpenVAS Name: Google Chrome Security Updates(stable-channel-update-for-desktop_29-2018-05)-Windows
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Firefox 60.0.2

Timelineinfo

01/23/2018 🔍
05/29/2018 +126 days 🔍
05/29/2018 +0 days 🔍
05/31/2018 +2 days 🔍
06/06/2018 +6 days 🔍
06/06/2018 +0 days 🔍
06/07/2018 +1 days 🔍
06/10/2018 +3 days 🔍
01/09/2019 +213 days 🔍
01/01/2025 +2184 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2018-14
Researcher: Ivan Fratric
Organization: Google Project Zero
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-6126 (🔍)
GCVE (CVE): GCVE-0-2018-6126
GCVE (VulDB): GCVE-100-119308

OVAL: 🔍

SecurityFocus: 104309 - Google Chrome Prior to 67.0.3396.62 Multiple Security Vulnerabilities
SecurityTracker: 1041046

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 06/10/2018 08:45
Updated: 01/01/2025 07:50
Changes: 06/10/2018 08:45 (84), 02/17/2020 15:55 (9), 01/01/2025 07:50 (16)
Complete: 🔍
Cache ID: 216::103

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