Mozilla Firefox 44 Graphite2 CmapSubtable12NextCodepoint memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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8.6$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in Mozilla Firefox 44. Affected is the function graphite2::TtfUtil::CmapSubtable12NextCodepoint of the component Graphite2. This manipulation causes memory corruption. This vulnerability appears as CVE-2016-2794. The attack may be initiated remotely. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mozilla Firefox 44 (Web Browser). It has been declared as critical. Affected by this vulnerability is the function graphite2::TtfUtil::CmapSubtable12NextCodepoint of the component Graphite2. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 03/08/2016 by Holger Fuhrmannek as MFSA 2016-37 as confirmed security advisory (Website). It is possible to read the advisory at mozilla.org. This vulnerability is known as CVE-2016-2794 since 03/01/2016. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

The vulnerability scanner Nessus provides a plugin with the ID 89763 (CentOS 5 / 6 / 7 : firefox (CESA-2016:0373)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 196453 (Ubuntu Security Notification for Thunderbird Vulnerabilities (USN-2934-1)).

Upgrading 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 X-Force (111344), Tenable (89763), SecurityFocus (BID 84222†) and Vulnerability Center (SBV-57130†). See VDB-81201, VDB-81203, VDB-81206 and VDB-81207 for similar entries. Be aware that VulDB is the high quality 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: 9.3
VulDB Meta Temp Score: 8.6

VulDB Base Score: 9.8
VulDB Temp Score: 8.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 89763
Nessus Name: CentOS 5 / 6 / 7 : firefox (CESA-2016:0373)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 703510
OpenVAS Name: Debian Security Advisory DSA 3510-1 (iceweasel - 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: 🔍
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Timelineinfo

03/01/2016 🔍
03/07/2016 +6 days 🔍
03/07/2016 +0 days 🔍
03/08/2016 +0 days 🔍
03/08/2016 +0 days 🔍
03/08/2016 +0 days 🔍
03/08/2016 +0 days 🔍
03/09/2016 +0 days 🔍
03/13/2016 +4 days 🔍
07/09/2022 +2309 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2016-37
Researcher: Holger Fuhrmannek
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2016-2794 (🔍)
GCVE (CVE): GCVE-0-2016-2794
GCVE (VulDB): GCVE-100-81223

OVAL: 🔍

X-Force: 111344 - Mozilla Firefox Graphite2 buffer overflow
SecurityFocus: 84222 - Graphite2 library Multiple Security Vulnerabilities
SecurityTracker: 1035215
Vulnerability Center: 57130 - Mozilla Firefox <45 and <ESR 38.7 Remote DoS due to a Vulnerability in Graphite 2 Library - CVE-2016-2794, High

See also: 🔍

Entryinfo

Created: 03/09/2016 10:18
Updated: 07/09/2022 13:43
Changes: 03/09/2016 10:18 (70), 09/02/2018 10:24 (20), 07/09/2022 13:43 (4)
Complete: 🔍
Cache ID: 216::103

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