Microsoft Internet Explorer 6/7/8/9 memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, was found in Microsoft Internet Explorer 6/7/8/9. This impacts an unknown function. Executing a manipulation can lead to memory corruption. This vulnerability is tracked as CVE-2011-1261. The attack can be launched remotely. No exploit exists. A patch should be applied to remediate this issue.

Detailsinfo

A vulnerability classified as critical was found in Microsoft Internet Explorer 6/7/8/9 (Web Browser). This vulnerability affects some unknown functionality. 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. CVE summarizes:

Microsoft Internet Explorer 6 through 9 does not properly handle objects in memory, which allows remote attackers to execute arbitrary code by accessing an object that (1) was not properly initialized or (2) is deleted, aka "Selection Object Memory Corruption Vulnerability."

The weakness was disclosed 06/16/2011 as MS11-050 as confirmed bulletin (Technet). The advisory is available at microsoft.com. This vulnerability was named CVE-2011-1261. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

The vulnerability scanner Nessus provides a plugin with the ID 55130 , which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 100103 (Microsoft Internet Explorer Cumulative Security Update (MS11-050)).

Applying the patch MS11-050 is able to eliminate this problem. The bugfix is ready for download at microsoft.com. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 11271.

The vulnerability is also documented in the databases at X-Force (67955), Tenable (55130), SecurityFocus (BID 48210†) and Vulnerability Center (SBV-31799†). The entries VDB-4372, VDB-58992, VDB-57683 and VDB-57681 are pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 55130
Nessus File: 🔍
Nessus Risk: 🔍

OpenVAS ID: 902443
OpenVAS Name: Microsoft Internet Explorer Multiple Vulnerabilities (2530548)
OpenVAS File: 🔍
OpenVAS Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: MS11-050
TippingPoint: 🔍
ISS Proventia IPS: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

03/04/2011 🔍
06/14/2011 +102 days 🔍
06/15/2011 +1 days 🔍
06/16/2011 +1 days 🔍
06/16/2011 +0 days 🔍
03/23/2015 +1376 days 🔍
11/08/2021 +2422 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MS11-050
Status: Confirmed

CVE: CVE-2011-1261 (🔍)
GCVE (CVE): GCVE-0-2011-1261
GCVE (VulDB): GCVE-100-57682

OVAL: 🔍

X-Force: 67955
SecurityFocus: 48210
Vulnerability Center: 31799 - [MS11-050] Microsoft Internet Explorer 6, 7, 8, and 9 Remote Use After Free Vulnerability, Medium

See also: 🔍

Entryinfo

Created: 03/23/2015 16:50
Updated: 11/08/2021 23:13
Changes: 03/23/2015 16:50 (44), 04/07/2017 12:10 (23), 11/08/2021 22:49 (1), 11/08/2021 23:00 (7), 11/08/2021 23:13 (2)
Complete: 🔍
Cache ID: 216:C24:103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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