Opera Web Browser 12.11 Site Loading Requests memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in Opera Web Browser 12.11. The affected element is an unknown function of the component Site Loading Requests Handler. The manipulation leads to memory corruption. This vulnerability is documented as CVE-2012-6470. The attack can be initiated remotely. Additionally, an exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Opera Web Browser 12.11 (Web Browser). This issue affects an unknown functionality of the component Site Loading Requests Handler. 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, and integrity. The summary by CVE is:

Opera before 12.12 does not properly allocate memory for GIF images, which allows remote attackers to execute arbitrary code or cause a denial of service (memory overwrite) via a malformed image.

The weakness was released 12/18/2012 by Masato Kinugawa as confirmed advisory (Website). It is possible to read the advisory at opera.com. The public release was coordinated with Opera. The identification of this vulnerability is CVE-2012-6470 since 01/02/2013. 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.

The exploit is available at exploit-db.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 63301 (Opera < 12.12 Multiple Vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows.

Upgrading to version 12.12 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 27126.

The vulnerability is also documented in the databases at X-Force (80721), Tenable (63301), SecurityFocus (BID 56984†), OSVDB (88657†) and Secunia (SA51462†). opera.com is providing further details. Entries connected to this vulnerability are available at VDB-7087, VDB-7210, VDB-63297 and VDB-63296. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 5.9

VulDB Base Score: 6.5
VulDB Temp Score: 5.9
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
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 63301
Nessus Name: Opera < 12.12 Multiple Vulnerabilities
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

OpenVAS ID: 803140
OpenVAS Name: Opera Multiple Vulnerabilities-01 Jan13 (Linux)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Web Browser 12.12
TippingPoint: 🔍

McAfee IPS: 🔍
McAfee IPS Version: 🔍

ISS Proventia IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

12/03/2012 🔍
12/05/2012 +2 days 🔍
12/18/2012 +13 days 🔍
12/18/2012 +0 days 🔍
12/19/2012 +1 days 🔍
12/19/2012 +0 days 🔍
12/24/2012 +5 days 🔍
01/02/2013 +9 days 🔍
01/02/2013 +0 days 🔍
01/03/2013 +1 days 🔍
07/13/2025 +4574 days 🔍

Sourcesinfo

Vendor: opera.com

Advisory: opera.com
Researcher: Masato Kinugawa
Status: Confirmed
Confirmation: 🔍
Coordinated: 🔍

CVE: CVE-2012-6470 (🔍)
GCVE (CVE): GCVE-0-2012-6470
GCVE (VulDB): GCVE-100-7211

OVAL: 🔍

X-Force: 80721 - Opera repeated attempts spoofing, Medium Risk
SecurityFocus: 56984 - Opera Web Browser Repeated Attempts Site Access Address Bar URI Spoofing Vulnerability
Secunia: 51462 - Opera Multiple Vulnerabilities, Highly Critical
OSVDB: 88657
Vulnerability Center: 37896 - Opera Before 12.12 Remote Code Execution Vulnerability via a Malformed GIF Image, Medium

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

Entryinfo

Created: 12/24/2012 21:55
Updated: 07/13/2025 09:40
Changes: 12/24/2012 21:55 (85), 04/22/2019 10:52 (7), 04/20/2021 13:25 (4), 07/13/2025 09:40 (22)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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