Google Chrome up to 20.0.1132.57 PDF Viewer 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$5k-$25k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in Google Chrome up to 20.0.1132.57. This vulnerability affects unknown code of the component PDF Viewer. Such manipulation leads to memory corruption. This vulnerability is listed as CVE-2012-2850. In addition, an exploit is available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Google Chrome up to 20.0.1132.57 (Web Browser). Affected by this issue is an unknown functionality 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:

Multiple unspecified vulnerabilities in 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, allow remote attackers to have an unknown impact via a crafted document.

The weakness was presented 07/31/2012 by Gynvael Coldwind and Mateusz Jurczyk (Trev) with Google Security Team as Stable Channel Release as not defined changelog entry (Website). The advisory is shared for download at googlechromereleases.blogspot.ch. The public release was coordinated in cooperation with the vendor. This vulnerability is handled as CVE-2012-2850 since 05/19/2012. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are unknown but a private exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/29/2018). It is expected to see the exploit prices for this product increasing in the near future.

It is declared as proof-of-concept. 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 and running in the context l.

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 (84370†) and Secunia (SA50105†). 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

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: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

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

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 🔍
07/31/2012 +73 days 🔍
07/31/2012 +0 days 🔍
07/31/2012 +0 days 🔍
08/01/2012 +1 days 🔍
08/01/2012 +0 days 🔍
08/06/2012 +5 days 🔍
08/09/2012 +3 days 🔍
08/13/2012 +4 days 🔍
04/29/2018 +2085 days 🔍

Sourcesinfo

Vendor: google.com
Product: google.com

Advisory: Stable Channel Release
Researcher: Gynvael Coldwind, Mateusz Jurczyk (Trev)
Organization: Google Security Team
Status: Not defined
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-2850 (🔍)
GCVE (CVE): GCVE-0-2012-2850
GCVE (VulDB): GCVE-100-5888

OVAL: 🔍

SecurityFocus: 54749 - Google Chrome Prior to 21 Multiple Security Vulnerabilities
Secunia: 50105 - Google Chrome Multiple Vulnerabilities, Highly Critical
OSVDB: 84370

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

Entryinfo

Created: 08/09/2012 13:22
Updated: 04/29/2018 10:27
Changes: 08/09/2012 13:22 (79), 04/29/2018 10:27 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Do you know our Splunk app?

Download it now for free!