PT-2009-4379 · Microsoft · Internet Explorer

Peter Vreugdenhil · Published 2009-07-29 · Updated 2023-12-07 · CVE-2009-1919

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Microsoft Internet Explorer versions 5.01 SP4 through 8

Description: The issue arises from the improper handling of attempts to access deleted objects in memory, allowing remote attackers to execute arbitrary code via an HTML document containing embedded style sheets. A remote code execution vulnerability exists in the way Internet Explorer accesses an object that has been deleted. An attacker could exploit the vulnerability by constructing a specially crafted Web page, potentially gaining the same user rights as the logged-on user. If a user is logged on with administrative user rights, an attacker who successfully exploited this vulnerability could take complete control of an affected system.

Recommendations: For Microsoft Internet Explorer versions 5.01 SP4 through 8, consider disabling the use of embedded style sheets in HTML documents until a patch is available. Restrict access to Web pages that could potentially exploit this issue to minimize the risk of remote code execution.

Fix

RCE

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2009-1919

Affected Products

Internet Explorer

References · 10

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2009/ms09-034 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2009-1919 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1919 · Security Note
• http://securitytracker.com/id?1022611 · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A5660 · Note
• http://us-cert.gov/cas/techalerts/TA09-195A.html · Note
• http://securityfocus.com/archive/1/505524/100/0/threaded · Note
• http://vupen.com/english/advisories/2009/2033 · Note
• https://docs.microsoft.com/security-updates/securitybulletins/2009/ms09-034 · Note
• http://zerodayinitiative.com/advisories/ZDI-09-048 · Note