Opera Web Browser 9.x Torrent File memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Opera Web Browser 9.x. Affected by this vulnerability is an unknown functionality of the component Torrent File Handler. This manipulation causes memory corruption. This vulnerability is handled as CVE-2007-2809. The attack can be initiated remotely. Additionally, an exploit exists. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability has been found in Opera Web Browser 9.x (Web Browser) and classified as critical. Affected by this vulnerability is an unknown code of the component Torrent File Handler. The manipulation with an unknown input leads to a memory corruption vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Buffer overflow in the transfer manager in Opera before 9.21 for Windows allows user-assisted remote attackers to execute arbitrary code via a crafted torrent file. NOTE: due to the lack of details, it is not clear if this is the same issue as CVE-2007-2274.

The weakness was released 05/21/2007 with iDefense (Website). It is possible to read the advisory at labs.idefense.com. This vulnerability is known as CVE-2007-2809 since 05/22/2007. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details are unknown but a private 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 25290 (Opera < 9.21 Transfer Manager Torrent File Handling Overflow), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Windows and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 115557 (Opera Torrent File Handling Buffer Overflow Vulnerability).

Upgrading to version 9.21 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (34470), Tenable (25290), SecurityFocus (BID 24080†), OSVDB (36229†) and Secunia (SA25278†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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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: Private
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 25290
Nessus Name: Opera < 9.21 Transfer Manager Torrent File Handling Overflow
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Web Browser 9.21

Timelineinfo

05/21/2007 🔍
05/21/2007 +0 days 🔍
05/21/2007 +0 days 🔍
05/21/2007 +0 days 🔍
05/21/2007 +0 days 🔍
05/21/2007 +0 days 🔍
05/22/2007 +0 days 🔍
05/22/2007 +0 days 🔍
05/22/2007 +0 days 🔍
05/24/2007 +2 days 🔍
05/27/2007 +3 days 🔍
06/08/2025 +6587 days 🔍

Sourcesinfo

Vendor: opera.com

Advisory: labs.idefense.com⛔
Organization: iDefense
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2007-2809 (🔍)
GCVE (CVE): GCVE-0-2007-2809
GCVE (VulDB): GCVE-100-3091
X-Force: 34470 - Opera BitTorrent header buffer overflow, High Risk
SecurityFocus: 24080 - Opera Web Browser Torrent File Handling Buffer Overflow Vulnerability
Secunia: 25278 - Opera Torrent File Handling Buffer Overflow Vulnerability, Highly Critical
OSVDB: 36229 - Opera Transfer Manager Torrent File Handling Overflow
SecurityTracker: 1018089 - Opera Buffer Overflow in Processing Torrent Files Lets Remote Users Execute Arbitrary Code
Vulnerability Center: 15217 - Opera Web-Browser Buffer Overflow Allows Remote Attacker Run Arbitrary Code, Medium
Vupen: ADV-2007-1888

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

Entryinfo

Created: 05/24/2007 19:02
Updated: 06/08/2025 18:26
Changes: 05/24/2007 19:02 (81), 04/22/2019 10:52 (11), 03/15/2021 13:57 (2), 06/08/2025 18:26 (17)
Complete: 🔍
Cache ID: 216:F0E:103

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

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