Mozilla Firefox 44 Graphite2 CmapSubtable4NextCodepoint 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 has been found in Mozilla Firefox 44 and classified as critical. The impacted element is the function graphite2::TtfUtil::CmapSubtable4NextCodepoint of the component Graphite2. Performing a manipulation results in memory corruption. This vulnerability is identified as CVE-2016-2802. The attack can be initiated remotely. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Mozilla Firefox 44 (Web Browser). It has been classified as critical. This affects the function graphite2::TtfUtil::CmapSubtable4NextCodepoint of the component Graphite2. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was released 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 uniquely identified as CVE-2016-2802 since 03/01/2016. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. 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 175671 (Debian Security Update for graphite2 (DSA 3515-1)).

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 (111352), Tenable (89763), SecurityFocus (BID 84222†) and Vulnerability Center (SBV-57140†). Entries connected to this vulnerability are available at VDB-81201, VDB-81203, VDB-81206 and VDB-81207. 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: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

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: 🔍
Exposure Time: 🔍

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-2016-2802 (🔍)
GCVE (CVE): GCVE-0-2016-2802
GCVE (VulDB): GCVE-100-81231

OVAL: 🔍

X-Force: 111352 - Mozilla Firefox Graphite2 buffer overflow
SecurityFocus: 84222 - Graphite2 library Multiple Security Vulnerabilities
SecurityTracker: 1035215
Vulnerability Center: 57140 - Mozilla Firefox <45 and <ESR 38.7 Remote DoS due to a Vulnerability in Graphite 2 Library - CVE-2016-2802, High

See also: 🔍

Entryinfo

Created: 03/09/2016 10:21
Updated: 07/09/2022 14:16
Changes: 03/09/2016 10:21 (76), 09/02/2018 10:29 (14), 07/09/2022 14:16 (4)
Complete: 🔍
Cache ID: 216::103

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