Microsoft Internet Explorer 9 ReloadInCompatView use after free

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.
6.7$5k-$25k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Microsoft Internet Explorer 9. This affects the function CMarkup::ReloadInCompatView. The manipulation leads to use after free. The attack may be initiated remotely. There is no available exploit. It is suggested to install a patch to address this issue.

Detailsinfo

A vulnerability was found in Microsoft Internet Explorer 9 (Web Browser). It has been rated as critical. This issue affects the function CMarkup::ReloadInCompatView. The manipulation with an unknown input leads to a use after free vulnerability. Using CWE to declare the problem leads to CWE-416. Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code. Impacted is confidentiality, integrity, and availability.

The bug was discovered 05/05/2014. The weakness was presented 12/13/2016 by Berend-Jan Wever (SkyLined) as MSIE 9 MSHTML CMarkup::ReloadInCompatView use-after-free as not defined mailinglist post (Bugtraq). The advisory is shared at seclists.org. The public release happened without involvement of Microsoft. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 04/07/2017). It is expected to see the exploit prices for this product decreasing in the near future.

The vulnerability was handled as a non-public zero-day exploit for at least 953 days. During that time the estimated underground price was around $25k-$100k.

Applying a patch is able to eliminate this problem.

seclists.org is providing further details. See VDB-94556 for similar entry. Several companies clearly confirm that VulDB is the primary source for best 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: 6.7

VulDB Base Score: 7.3
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Use after free
CWE: CWE-416 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/05/2014 🔍
12/13/2016 +953 days 🔍
12/16/2016 +3 days 🔍
04/07/2017 +112 days 🔍

Sourcesinfo

Vendor: microsoft.com

Advisory: MSIE 9 MSHTML CMarkup::ReloadInCompatView use-after-free
Researcher: Berend-Jan Wever (SkyLined)
Status: Not defined

GCVE (VulDB): GCVE-100-94553
Misc.: 🔍
See also: 🔍

Entryinfo

Created: 12/16/2016 15:50
Updated: 04/07/2017 12:16
Changes: 12/16/2016 15:50 (47), 04/07/2017 12:16 (2)
Complete: 🔍
Cache ID: 216:376:103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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