Google Chrome 20.0.1132.57 PDF Viewer Image Decoder memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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9.0$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Google Chrome 20.0.1132.57. This affects the function Image Decoder of the component PDF Viewer. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2012-2856. In addition, an exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Google Chrome 20.0.1132.57 (Web Browser). It has been rated as critical. Affected by this issue is the function Image Decoder of the component PDF Viewer. 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. CVE summarizes:

The PDF functionality in Google Chrome before 21.0.1180.57 on Mac OS X and Linux, and before 21.0.1180.60 on Windows and Chrome Frame, allows remote attackers to cause a denial of service or possibly have unspecified other impact via vectors that trigger out-of-bounds write operations.

The weakness was presented 07/31/2012 by Matthew Jurczyk and Gynvael Coldwind (Trev) with Google Security Team as not defined mailinglist post (Website). The advisory is shared for download at srware.net. The public release was coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2012-2856 since 05/19/2012. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details as well as a public exploit are known.

It is declared as proof-of-concept. As 0-day the estimated underground price was around $100k and more. The vulnerability scanner Nessus provides a plugin with the ID 61505 (FreeBSD : chromium -- multiple vulnerabilities (ce84e136-e2f6-11e1-a8ca-00262d5ed8ee)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family FreeBSD Local Security Checks.

Upgrading to version 21.0.1180.57 eliminates this vulnerability. The upgrade is hosted for download at chrome.google.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (61505), SecurityFocus (BID 54749†), OSVDB (93175†), Secunia (SA50105†) and Vulnerability Center (SBV-35906†). See VDB-5884, VDB-5885, VDB-5886 and VDB-5887 for similar entries. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 10.0
VulDB Meta Temp Score: 9.0

VulDB Base Score: 10.0
VulDB Temp Score: 9.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 61505
Nessus Name: FreeBSD : chromium -- multiple vulnerabilities (ce84e136-e2f6-11e1-a8ca-00262d5ed8ee)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 71505
OpenVAS Name: FreeBSD Ports: chromium
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Chrome 21.0.1180.57

Timelineinfo

05/19/2012 🔍
06/08/2012 +20 days 🔍
07/31/2012 +53 days 🔍
07/31/2012 +0 days 🔍
07/31/2012 +0 days 🔍
08/01/2012 +1 days 🔍
08/06/2012 +5 days 🔍
08/16/2012 +10 days 🔍
05/13/2013 +270 days 🔍
05/10/2021 +2919 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: srware.net
Researcher: Matthew Jurczyk, Gynvael Coldwind (Trev)
Organization: Google Security Team
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-2856 (🔍)
GCVE (CVE): GCVE-0-2012-2856
GCVE (VulDB): GCVE-100-8648

OVAL: 🔍

SecurityFocus: 54749 - Google Chrome Prior to 21 Multiple Security Vulnerabilities
Secunia: 50105 - Google Chrome Multiple Vulnerabilities, Highly Critical
OSVDB: 93175
Vulnerability Center: 35906 - Google Chrome Before 21.0.1180.60 Remote DoS Vulnerability via PDF Out-of-Bounds Write Operations, Medium

See also: 🔍

Entryinfo

Created: 05/13/2013 17:46
Updated: 05/10/2021 16:36
Changes: 05/13/2013 17:46 (77), 04/15/2017 16:37 (9), 05/10/2021 16:36 (2)
Complete: 🔍
Committer:
Cache ID: 216::103

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