Google Chrome up to 19.0.1084.57 PDF Image Codec integer coercion

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-$5k	0.00

Summaryinfo

A vulnerability was found in Google Chrome up to 19.0.1084.57. It has been rated as problematic. This affects an unknown function of the component PDF Image Codec. Performing a manipulation results in integer coercion. This vulnerability is reported as CVE-2012-2832. Moreover, an exploit is present. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical has been found in Google Chrome up to 19.0.1084.57 (Web Browser). This affects an unknown function of the component PDF Image Codec. The manipulation with an unknown input leads to a integer coercion vulnerability. CWE is classifying the issue as CWE-192. Integer coercion refers to a set of flaws pertaining to the type casting, extension, or truncation of primitive data types. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

The image-codec implementation in the PDF functionality in Google Chrome before 20.0.1132.43 does not initialize an unspecified pointer, which allows remote attackers to cause a denial of service or possibly have unknown other impact via a crafted document.

The weakness was disclosed 06/26/2012 by Mateusz Jurczyk (j00ru) with Google Security Team as 131553 (Website). It is possible to read the advisory at code.google.com. The public release has been coordinated in cooperation with Google. This vulnerability is uniquely identified as CVE-2012-2832 since 05/19/2012. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details are unknown but a public exploit is available.

It is declared as proof-of-concept. We expect the 0-day to have been worth approximately $25k-$100k. The vulnerability scanner Nessus provides a plugin with the ID 59750 (FreeBSD : chromium -- multiple vulnerabilities (ff922811-c096-11e1-b0f4-00262d5ed8ee)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks. The commercial vulnerability scanner Qualys is able to test this issue with plugin 120297 (Google Chrome Prior to 20.0.1132.43 Multiple Vulnerabilities).

Upgrading to version 20.0.1132.43 eliminates this vulnerability. The upgrade is hosted for download at google.com. The problem might be mitigated by replacing the product with Mozilla Firefox, Microsoft Internet Explorer, Opera as an alternative. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (76569), Tenable (59750), SecurityFocus (BID 54203†), OSVDB (83248†) and Secunia (SA49724†). Further details are available at googlechromereleases.blogspot.de. The entries VDB-5585, VDB-5586, VDB-5587 and VDB-5588 are pretty similar. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• Web Browser

Vendor

• Google

Name

• Chrome

Version

• 19.0.1084.0
• 19.0.1084.1
• 19.0.1084.2
• 19.0.1084.3
• 19.0.1084.4
• 19.0.1084.5
• 19.0.1084.6
• 19.0.1084.7
• 19.0.1084.8
• 19.0.1084.9
• 19.0.1084.10
• 19.0.1084.11
• 19.0.1084.12
• 19.0.1084.13
• 19.0.1084.14
• 19.0.1084.15
• 19.0.1084.16
• 19.0.1084.17
• 19.0.1084.18
• 19.0.1084.19
• 19.0.1084.20
• 19.0.1084.21
• 19.0.1084.22
• 19.0.1084.23
• 19.0.1084.24
• 19.0.1084.25
• 19.0.1084.26
• 19.0.1084.27
• 19.0.1084.28
• 19.0.1084.29
• 19.0.1084.30
• 19.0.1084.31
• 19.0.1084.32
• 19.0.1084.33
• 19.0.1084.34
• 19.0.1084.35
• 19.0.1084.36
• 19.0.1084.37
• 19.0.1084.38
• 19.0.1084.39
• 19.0.1084.40
• 19.0.1084.41
• 19.0.1084.42
• 19.0.1084.43
• 19.0.1084.44
• 19.0.1084.45
• 19.0.1084.46
• 19.0.1084.47
• 19.0.1084.48
• 19.0.1084.49
• 19.0.1084.50
• 19.0.1084.51
• 19.0.1084.52
• 19.0.1084.53
• 19.0.1084.54
• 19.0.1084.55
• 19.0.1084.56
• 19.0.1084.57

License

• free

Website

• Vendor: https://www.google.com/
• Product: https://www.google.com/chrome/

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

• 🔍
• 🔍
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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

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Integer coercion
CWE: CWE-192 / CWE-189
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Nessus ID: 59750
Nessus Name: FreeBSD : chromium -- multiple vulnerabilities (ff922811-c096-11e1-b0f4-00262d5ed8ee)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71529
OpenVAS Name: FreeBSD Ports: chromium
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: Chrome 20.0.1132.43
Alternative: Mozilla Firefox, Microsoft Internet Explorer, Opera

Timelineinfo

05/19/2012 🔍
06/26/2012 +38 days 🔍
06/26/2012 +0 days 🔍
06/26/2012 +0 days 🔍
06/26/2012 +0 days 🔍
06/26/2012 +0 days 🔍
06/27/2012 +0 days 🔍
06/27/2012 +0 days 🔍
06/27/2012 +0 days 🔍
06/27/2012 +0 days 🔍
09/03/2012 +68 days 🔍
12/31/2024 +4502 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: 131553
Researcher: Mateusz Jurczyk (j00ru)
Organization: Google Security Team
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-2832 (🔍)
GCVE (CVE): GCVE-0-2012-2832
GCVE (VulDB): GCVE-100-5607

OVAL: 🔍

X-Force: 76569
SecurityFocus: 54203 - Google Chrome Prior to 20.0.1132.43 Multiple Security Vulnerabilities
Secunia: 49724 - Google Chrome Multiple Vulnerabilities, Highly Critical
OSVDB: 83248
Vulnerability Center: 36055 - The PDF functionality in Google Chrome \x3C20.0.1132.43 Remote DoS Vulnerability via a Crafted File, Medium

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

Entryinfo

Created: 06/27/2012 15:17
Updated: 12/31/2024 05:49
Changes: 06/27/2012 15:17 (85), 04/16/2017 11:22 (7), 03/25/2021 19:33 (3), 12/31/2024 05:49 (18)
Complete: 🔍
Cache ID: 216:23D:103

Be aware that VulDB is the high quality source for vulnerability data.

Discussion

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