Foxit Reader 4.x FreeType2 CFF Font Parser 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.
6.6$0-$5k0.00

Summaryinfo

A vulnerability classified as critical has been found in Foxit Reader 4.x. Affected is an unknown function of the component FreeType2 CFF Font Parser. The manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2010-1797. Moreover, an exploit is present. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability was found in Foxit Reader 4.x (Document Reader Software). It has been rated as critical. This issue affects some unknown processing of the component FreeType2 CFF Font Parser. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Multiple stack-based buffer overflows in the cff_decoder_parse_charstrings function in the CFF Type2 CharStrings interpreter in cff/cffgload.c in FreeType before 2.4.2, as used in Apple iOS before 4.0.2 on the iPhone and iPod touch and before 3.2.2 on the iPad, allow remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted CFF opcodes in embedded fonts in a PDF document, as demonstrated by JailbreakMe. NOTE: some of these details are obtained from third party information.

The weakness was disclosed 08/06/2010 by Braden Thomas with FoxIt (Website). The advisory is shared at foxitsoftware.com. The identification of this vulnerability is CVE-2010-1797 since 05/06/2010. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but a public exploit is available.

A public exploit has been developed by jailbreakme in Python and been published 3 weeks after the advisory. The exploit is available at securityfocus.com. It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 68080 (Oracle Linux 3 / 4 / 5 : freetype (ELSA-2010-0607)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Oracle Linux Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 118377 (FreeType Compact Font Format (CFF) Multiple Stack Based Buffer Overflow Vulnerabilities).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at foxitsoftware.com. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published 2 months after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Exploit-DB (14538), Tenable (68080), SecurityFocus (BID 42241†), OSVDB (67011†) and Secunia (SA40903†). The entries VDB-4156, VDB-54410, VDB-54409 and VDB-54408 are pretty similar. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
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: 🔍
Access: Public
Status: Proof-of-Concept
Author: jailbreakme
Programming Language: 🔍
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 68080
Nessus Name: Oracle Linux 3 / 4 / 5 : freetype (ELSA-2010-0607)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍
Nessus Port: 🔍

OpenVAS ID: 880406
OpenVAS Name: CentOS Update for freetype CESA-2010:0607 centos3 i386
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Exploit Delay Time: 🔍

Patch: foxitsoftware.com
McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

05/06/2010 🔍
08/03/2010 +89 days 🔍
08/05/2010 +2 days 🔍
08/05/2010 +0 days 🔍
08/06/2010 +1 days 🔍
08/06/2010 +0 days 🔍
08/10/2010 +3 days 🔍
08/16/2010 +6 days 🔍
08/19/2010 +3 days 🔍
08/24/2010 +5 days 🔍
09/07/2010 +14 days 🔍
07/12/2013 +1039 days 🔍
09/27/2024 +4095 days 🔍

Sourcesinfo

Vendor: foxitsoftware.com

Advisory: foxitsoftware.com
Researcher: Braden Thomas
Organization: FoxIt
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2010-1797 (🔍)
GCVE (CVE): GCVE-0-2010-1797
GCVE (VulDB): GCVE-100-4157

OVAL: 🔍

X-Force: 60856
SecurityFocus: 42241 - FreeType Compact Font Format (CFF) Multiple Stack Based Buffer Overflow Vulnerabilities
Secunia: 40903 - Foxit Reader FreeType Font Parsing Vulnerabilities, Highly Critical
OSVDB: 67011 - FreeType2 Unspecified CFF Font Handling Arbitrary Code Execution
Vulnerability Center: 26755 - FreeType 2.0.6-2.4 Remote arbitrary Code Execution Vulnerability via CFF Character Strings, Medium

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 08/19/2010 02:00
Updated: 09/27/2024 04:53
Changes: 08/19/2010 02:00 (87), 03/02/2017 11:06 (19), 03/18/2021 08:49 (4), 03/18/2021 08:55 (1), 09/27/2024 04:53 (14)
Complete: 🔍
Cache ID: 216:CD9:103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!