FreeType up to 12.3 sfnt/ttcmap.c tt_cmap4_validate memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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7.0$0-$5k0.00

A vulnerability was found in FreeType up to 12.3 (Software Library). It has been classified as critical. This affects the function tt_cmap4_validate of the file sfnt/ttcmap.c. 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 summary by CVE is:

The tt_cmap4_validate function in sfnt/ttcmap.c in FreeType before 2.5.4 validates a certain length field before that field s value is completely calculated, which allows remote attackers to cause a denial of service (out-of-bounds read) or possibly have unspecified other impact via a crafted cmap SFNT table.

The weakness was shared 02/08/2015 by Mateusz Jurczyk with Google Security Team (Website). It is possible to read the advisory at ubuntu.com. This vulnerability is uniquely identified as CVE-2014-9663 since 02/07/2015. 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 81924 (CentOS 6 / 7 : freetype (CESA-2015:0696)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CentOS Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 350787 (Amazon Linux Security Advisory for freetype: AL2012-2015-044).

Upgrading to version 12.04 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (100822), Tenable (81924), SecurityFocus (BID 72986†) and Vulnerability Center (SBV-48739†).

Productinfo

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Name

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License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 7.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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NVD Base Score: 🔍

Exploitinginfo

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

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 81924
Nessus Name: CentOS 6 / 7 : freetype (CESA-2015:0696)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 14611
OpenVAS Name: Amazon Linux Local Check: ALAS-2015-502
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: FreeType 12.04
Patch: git.savannah.gnu.org

Timelineinfo

02/07/2015 🔍
02/08/2015 +1 days 🔍
02/08/2015 +0 days 🔍
02/08/2015 +0 days 🔍
02/24/2015 +16 days 🔍
03/09/2015 +13 days 🔍
03/30/2015 +21 days 🔍
04/16/2022 +2574 days 🔍

Sourcesinfo

Advisory: RHSA-2015:0696
Researcher: Mateusz Jurczyk
Organization: Google Security Team
Status: Not defined
Confirmation: 🔍

CVE: CVE-2014-9663 (🔍)
OVAL: 🔍

X-Force: 100822
SecurityFocus: 72986 - FreeType Versions Prior to 2.5.4 Multiple Remote Vulnerabilities
Vulnerability Center: 48739 - FreeType <2.5.4 Remote DoS or Code Execution due to Out-of-Bounds Read via Crafted CMAP SFNT Table, High

Entryinfo

Created: 03/30/2015 12:03 PM
Updated: 04/16/2022 09:41 AM
Changes: 03/30/2015 12:03 PM (63), 06/20/2017 12:39 PM (12), 04/16/2022 09:32 AM (4), 04/16/2022 09:37 AM (1), 04/16/2022 09:41 AM (2)
Complete: 🔍
Cache ID: 3:5D7:40

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