VDB-87758 · CVE-2014-9747 · Qualys 175525

FreeType up to 2.5.3 type42/t42parse.c t42_parse_encoding infinite loop

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.
5.1$0-$5k0.00

A vulnerability was found in FreeType up to 2.5.3 (Software Library). It has been rated as problematic. Affected by this issue is the function t42_parse_encoding of the file type42/t42parse.c. The manipulation with an unknown input leads to a infinite loop vulnerability. Using CWE to declare the problem leads to CWE-835. The program contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. Impacted is availability. CVE summarizes:

The t42_parse_encoding function in type42/t42parse.c in FreeType before 2.5.4 does not properly update the current position for immediates-only mode, which allows remote attackers to cause a denial of service (infinite loop) via a Type42 font.

The weakness was presented 06/07/2016 (Website). The advisory is available at savannah.nongnu.org. This vulnerability is handled as CVE-2014-9747. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1499 by the MITRE ATT&CK project.

The vulnerability scanner Nessus provides a plugin with the ID 86211 (Debian DLA-319-1 : freetype 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. The commercial vulnerability scanner Qualys is able to test this issue with plugin 175525 (Debian Security Update for freetype (DSA 3370-1)).

Upgrading to version 2.5.4 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (86211). See 77690 and 87757 for similar entries.

Productinfo

Type

Name

License

  • open-source

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

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

Exploitinginfo

Class: Infinite loop
CWE: CWE-835 / CWE-404
ATT&CK: T1499

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 86211
Nessus Name: Debian DLA-319-1 : freetype security update
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 703370
OpenVAS Name: Debian Security Advisory DSA 3370-1 (freetype - security update)
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 2.5.4

Timelineinfo

09/25/2015 🔍
06/07/2016 +256 days 🔍
06/07/2016 +0 days 🔍
06/08/2016 +1 days 🔍
08/23/2022 +2267 days 🔍

Sourcesinfo

Advisory: savannah.nongnu.org
Status: Not defined

CVE: CVE-2014-9747 (🔍)
OVAL: 🔍
See also: 🔍

Entryinfo

Created: 06/08/2016 10:14 AM
Updated: 08/23/2022 08:24 AM
Changes: 06/08/2016 10:14 AM (40), 06/08/2017 11:47 PM (14), 08/23/2022 08:22 AM (2), 08/23/2022 08:24 AM (1)
Complete: 🔍

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!