Mozilla Firefox up to 53.0.3 Graphite2 Library getClassGlyph out-of-bounds

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Mozilla Firefox up to 53.0.3. The affected element is the function graphite2::Silf::getClassGlyph of the component Graphite2 Library. The manipulation results in out-of-bounds. This vulnerability is reported as CVE-2017-7776. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as critical, was found in Mozilla Firefox up to 53.0.3 (Web Browser). Affected is the function graphite2::Silf::getClassGlyph of the component Graphite2 Library. The manipulation with an unknown input leads to a out-of-bounds vulnerability. CWE is classifying the issue as CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Heap-based Buffer Overflow read in Graphite2 library in Firefox before 54 in graphite2::Silf::getClassGlyph.

The bug was discovered 06/13/2017. The weakness was disclosed 04/15/2019 as MFSA 2017-15 as confirmed security advisory (Website). The advisory is shared for download at mozilla.org. This vulnerability is traded as CVE-2017-7776 since 04/12/2017. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 9 days. During that time the estimated underground price was around $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 101011 (Debian DSA-3894-1 : graphite2 - security update), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Debian Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176060 (Debian Security Update for firefox-esr (DSA 3881-1)).

Upgrading to version 54.0 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (101011). The entries VDB-102487, VDB-102488, VDB-102489 and VDB-102490 are pretty similar. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.0

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

NVD Base Score: 8.1
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Out-of-bounds
CWE: CWE-125 / CWE-119
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: 101011
Nessus Name: Debian DSA-3894-1 : graphite2 - security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 881932
OpenVAS Name: CentOS Update for graphite2 CESA-2017:1793 centos7
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Firefox 54.0

Timelineinfo

04/12/2017 🔍
06/13/2017 +62 days 🔍
06/22/2017 +9 days 🔍
06/23/2017 +1 days 🔍
04/15/2019 +661 days 🔍
04/16/2019 +1 days 🔍
05/29/2020 +409 days 🔍

Sourcesinfo

Vendor: mozilla.org
Product: mozilla.org

Advisory: MFSA 2017-15
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2017-7776 (🔍)
GCVE (CVE): GCVE-0-2017-7776
GCVE (VulDB): GCVE-100-133392

OVAL: 🔍
See also: 🔍

Entryinfo

Created: 04/16/2019 10:17
Updated: 05/29/2020 16:46
Changes: 04/16/2019 10:17 (78), 05/29/2020 16:46 (2)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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