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K
zdiSam Thomas of eshu.co.ukZDI-09-071
HistoryOct 13, 2009 - 12:00 a.m.

Microsoft Internet Explorer writing-mode Memory Corruption Vulnerability

2009-10-1300:00:00
Sam Thomas of eshu.co.uk
www.zerodayinitiative.com
22

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.92 High

EPSS

Percentile

98.9%

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Microsoft Internet Explorer. User interaction is required in that a user must visit a malicious web page. The specific flaw exists in the parsing of CSS style information. When a writing-mode style is used with a specific combination of HTML tags, memory corruption occurs. Exploitation of this vulnerability will lead to remote system compromise under the credentials of the currently logged in user.

9.3 High

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:N/AC:M/Au:N/C:C/I:C/A:C

0.92 High

EPSS

Percentile

98.9%