PT-2011-3019 · Microsoft · Windows Vista+4

J00Ru + 1 · Published 2011-07-13 · Updated 2023-12-07 · CVE-2011-1283

Positive Technologies (AI Summary)

CVSS v2.0

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Windows XP versions SP2 through SP3 Microsoft Windows Server 2003 version SP2 Microsoft Windows Vista versions SP1 through SP2 Microsoft Windows Server 2008 versions Gold through SP2

Description The issue is related to the Client/Server Run-time Subsystem (CSRSS) in the Win32 subsystem, which does not properly validate an array index before performing read and write operations. This allows local users to potentially gain privileges or cause a denial of service due to memory corruption by using a crafted application. The vulnerability is due to the way CSRSS assigns memory for specific user transactions, which could allow an attacker to run arbitrary code in kernel mode.

Recommendations For Microsoft Windows XP versions SP2 through SP3, update to a newer version to mitigate the risk. For Microsoft Windows Server 2003 version SP2, update to a newer version to mitigate the risk. For Microsoft Windows Vista versions SP1 through SP2, update to a newer version to mitigate the risk. For Microsoft Windows Server 2008 versions Gold through SP2, update to a newer version to mitigate the risk. As a temporary workaround, consider restricting access to the CSRSS subsystem to minimize the risk of exploitation.

Fix

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

CVE-2011-1283

Affected Products

Windows

Windows Server 2003

Windows Server 2008

Windows Vista

Windows Xp

References · 6

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2011/ms11-056 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-1283 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2011-1283 · Security Note
• https://docs.microsoft.com/security-updates/securitybulletins/2011/MS11-056 · Note
• http://us-cert.gov/cas/techalerts/TA11-193A.html · Note
• https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A12362 · Note