FreeType 2.5.3 tt_sbit_decoder_load_image memory corruption

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.0$0-$5k0.00

Summaryinfo

A vulnerability was found in FreeType 2.5.3. It has been classified as critical. This impacts the function tt_sbit_decoder_load_image. This manipulation causes memory corruption. This vulnerability is tracked as CVE-2014-9656. No exploit exists. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability classified as critical was found in FreeType 2.5.3 (Software Library). Affected by this vulnerability is the function tt_sbit_decoder_load_image. 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 disclosed 12/06/2014 by Mateusz Jurczyk (j00ru) with Google as FreeType 2.5.4 as confirmed news (Website). It is possible to read the advisory at freetype.org. This vulnerability is known as CVE-2014-9656 since 02/07/2015. 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 81415 (Fedora 21 : freetype-2.5.3-15.fc21 (2015-2237)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115089 (Solaris 11.2 Support Repository Update (SRU) 10.5.0 Missing).

Upgrading to version 2.5.4 eliminates this vulnerability. The upgrade is hosted for download at sourceforge.net. A possible mitigation has been published immediately after the disclosure of the vulnerability. The news contains the following remark:

FreeType 2.5.4 has been released. All users should upgrade due to another fix for vulnerability CVE-2014-2240 in the CFF driver. The library also contains a new round of patches for better protection against malformed fonts.

The vulnerability is also documented in the databases at X-Force (100796), Tenable (81415), SecurityFocus (BID 72986†), SecurityTracker (ID 1031711†) and Vulnerability Center (SBV-48727†). The entries VDB-67449, VDB-69068, VDB-69069 and VDB-69070 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 81415
Nessus Name: Fedora 21 : freetype-2.5.3-15.fc21 (2015-2237)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Port: 🔍

OpenVAS ID: 703188
OpenVAS Name: Debian Security Advisory DSA 3188-1 (freetype - 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: 🔍

Upgrade: FreeType 2.5.4
Patch: git.savannah.gnu.org

Timelineinfo

12/06/2014 🔍
12/06/2014 +0 days 🔍
02/07/2015 +63 days 🔍
02/08/2015 +1 days 🔍
02/08/2015 +0 days 🔍
02/08/2015 +0 days 🔍
02/09/2015 +1 days 🔍
02/20/2015 +11 days 🔍
02/24/2015 +4 days 🔍
03/09/2015 +13 days 🔍
03/08/2022 +2556 days 🔍

Sourcesinfo

Advisory: FreeType 2.5.4
Researcher: Mateusz Jurczyk (j00ru)
Organization: Google
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2014-9656 (🔍)
GCVE (CVE): GCVE-0-2014-9656
GCVE (VulDB): GCVE-100-69067

OVAL: 🔍

X-Force: 100796
SecurityFocus: 72986 - FreeType Versions Prior to 2.5.4 Multiple Remote Vulnerabilities
SecurityTracker: 1031711 - FreeType Multiple Flaws Let Remote Users Bypass Security Features, Deny Service, and Execute Arbitrary Code
Vulnerability Center: 48727 - FreeType <2.5.4 Remote DoS or Code Execution due to Out-of-Bounds Read via Crafted OpenType Font, High

See also: 🔍

Entryinfo

Created: 02/09/2015 15:59
Updated: 03/08/2022 18:46
Changes: 02/09/2015 15:59 (78), 06/20/2017 08:51 (10), 03/08/2022 18:40 (4), 03/08/2022 18:46 (1)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!