Microsoft » Windows 2000 : Security Vulnerabilities, CVEs, CVSS score between 6 and 6.99

Buffer overflow in Microsoft Phone Dialer (dialer.exe), via a malformed dialer entry in the dialer.ini file.

The (1) CertGetCertificateChain, (2) CertVerifyCertificateChainPolicy, and (3) WinVerifyTrust APIs within the CryptoAPI for Microsoft products including Microsoft Windows 98 through XP, Office for Mac, Internet Explorer for Mac, and Outlook Express for Mac, do not properly verify the Basic Constraints of intermediate CA-signed X.509 certificates, which allows remote attackers to spoof the certificates of trusted sites via a man-in-the-middle attack for SSL sessions, as originally reported for Internet Explorer and IIS.

Unrestricted critical resource lock in Terminal Services for Windows 2000 before SP4 and Windows XP allows remote authenticated users to cause a denial of service (reboot) by obtaining a read lock on msgina.dll, which prevents msgina.dll from being loaded.

Stack-based buffer overflow in the Plug and Play (PnP) service (UMPNPMGR.DLL) in Microsoft Windows 2000 SP4, and XP SP1 and SP2, allows remote or local authenticated attackers to execute arbitrary code via a large number of "\" (backslash) characters in a registry key name, which triggers the overflow in a wsprintfW function call.

Microsoft JScript 5.1, 5.5, and 5.6 on Windows 2000 SP4, and 5.6 on Windows XP, Server 2003, Windows 98 and Windows Me, will "release objects early" in certain cases, which results in memory corruption and allows remote attackers to execute arbitrary code.

The RpcGetPrinterData function in the Print Spooler (spoolsv.exe) service in Microsoft Windows 2000 SP4 and earlier, and possibly Windows XP SP1 and earlier, allows remote attackers to cause a denial of service (memory consumption) via an RPC request that specifies a large 'offered' value (output buffer size), a variant of CVE-2005-3644.

Double free vulnerability in Microsoft Windows 2000, XP, 2003, and Vista allows local users to gain privileges by calling the MessageBox function with a MB_SERVICE_NOTIFICATION message with crafted data, which sends a HardError message to Client/Server Runtime Server Subsystem (CSRSS) process, which is not properly handled when invoking the UserHardError and GetHardErrorText functions in WINSRV.DLL.

Buffer overflow in the Graphics Device Interface (GDI) in Microsoft Windows 2000 SP4; XP SP2; Server 2003 Gold, SP1, and SP2; and Vista allows local users to gain privileges via a crafted Enhanced Metafile (EMF) image format file.

Heap-based buffer overflow in Microsoft Windows allows user-assisted remote attackers to have an unknown impact via a crafted .HLP file.

The DNS server in Microsoft Windows 2000 Server SP4, and Server 2003 SP1 and SP2, uses predictable transaction IDs when querying other DNS servers, which allows remote attackers to spoof DNS replies, poison the DNS cache, and facilitate further attack vectors.

Untrusted search path vulnerability in Shell32.dll in Microsoft Windows 2000, Windows XP, Windows Vista, Windows Server 2008, and Windows 7, when using an environment configured with a string such as %APPDATA% or %PROGRAMFILES% in a certain way, allows local users to gain privileges via a Trojan horse DLL under the current working directory, as demonstrated by iTunes and Safari.

Unspecified vulnerability in Active Directory on Microsoft Windows 2000 and Windows Server 2003, and Active Directory Application Mode (ADAM) on XP and Server 2003, allows remote attackers to cause a denial of service (hang and restart) via a crafted LDAP request.

The DNS Resolver Cache Service (aka DNSCache) in Windows DNS Server in Microsoft Windows 2000 SP4, Server 2003 SP1 and SP2, and Server 2008 does not properly cache crafted DNS responses, which makes it easier for remote attackers to predict transaction IDs and poison caches by sending many crafted DNS queries that trigger "unnecessary lookups," aka "DNS Server Response Validation Vulnerability."

The Message Queuing (aka MSMQ) service for Microsoft Windows 2000 SP4, XP SP2, Server 2003 SP2, and Vista Gold does not properly validate unspecified IOCTL request data from user mode before passing this data to kernel mode, which allows local users to gain privileges via a crafted request, aka "MSMQ Null Pointer Vulnerability."

The CryptoAPI component in Microsoft Windows 2000 SP4, Windows XP SP2 and SP3, Windows Server 2003 SP2, Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold, SP2, and R2, and Windows 7, as used by Internet Explorer and other applications, does not properly handle a '\0' character in a domain name in the subject's Common Name (CN) field of an X.509 certificate, which allows man-in-the-middle attackers to spoof arbitrary SSL servers via a crafted certificate issued by a legitimate Certification Authority, aka "Null Truncation in X.509 Common Name Vulnerability," a related issue to CVE-2009-2408.

The kernel in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista Gold and SP1, and Server 2008 Gold does not properly validate data sent from user mode, which allows local users to gain privileges via a crafted PE .exe file that triggers a NULL pointer dereference during chain traversal, aka "Windows Kernel NULL Pointer Dereference Vulnerability."

LSASS.exe in the Local Security Authority Subsystem Service (LSASS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 allows remote authenticated users to cause a denial of service (CPU consumption) via a malformed ISAKMP request over IPsec, aka "Local Security Authority Subsystem Service Resource Exhaustion Vulnerability."

The Client/Server Run-time Subsystem (CSRSS) in Microsoft Windows 2000 SP4, XP SP2 and SP3, and Server 2003 SP2 does not properly kill processes after a logout, which allows local users to obtain sensitive information or gain privileges via a crafted application that continues to execute throughout the logout of one user and the login session of the next user, aka "CSRSS Local Privilege Elevation Vulnerability."

The Key Distribution Center (KDC) in Kerberos in Microsoft Windows 2000 SP4, Server 2003 SP2, and Server 2008 Gold and SP2, when a trust relationship with a non-Windows Kerberos realm exists, allows remote authenticated users to cause a denial of service (NULL pointer dereference and domain controller outage) via a crafted Ticket Granting Ticket (TGT) renewal request, aka "Kerberos Null Pointer Dereference Vulnerability."

The kernel in Microsoft Windows 2000 SP4 and XP SP2 and SP3 allows local users to gain privileges by creating a symbolic link from an untrusted registry hive to a trusted registry hive, aka "Windows Kernel Symbolic Link Creation Vulnerability."

The Windows kernel-mode drivers in win32k.sys in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista SP1 and SP2, and Server 2008 Gold and SP2 "do not properly validate changes in certain kernel objects," which allows local users to execute arbitrary code via vectors related to Device Contexts (DC) and the GetDCEx function, aka "Win32k Improper Data Validation Vulnerability."

The Windows kernel-mode drivers in win32k.sys in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista SP1 and SP2, Server 2008 Gold and SP2, Windows 7, and Server 2008 R2 "do not properly validate all callback parameters when creating a new window," which allows local users to execute arbitrary code, aka "Win32k Window Creation Vulnerability."

The Windows kernel-mode drivers in win32k.sys in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP2, Vista SP1 and SP2, Server 2008 Gold and SP2, Windows 7, and Server 2008 R2 allows local users to execute arbitrary code via vectors related to "glyph outline information" and TrueType fonts, aka "Win32k TrueType Font Parsing Vulnerability."

The DNS implementation in smtpsvc.dll before 6.0.2600.5949 in Microsoft Windows 2000 SP4 and earlier, Windows XP SP3 and earlier, Windows Server 2003 SP2 and earlier, Windows Server 2008 SP2 and earlier, Windows Server 2008 R2, Exchange Server 2003 SP3 and earlier, Exchange Server 2007 SP2 and earlier, and Exchange Server 2010 uses predictable transaction IDs that are formed by incrementing a previous ID by 1, which makes it easier for man-in-the-middle attackers to spoof DNS responses, a different vulnerability than CVE-2010-0024 and CVE-2010-0025.

The DNS implementation in smtpsvc.dll before 6.0.2600.5949 in Microsoft Windows 2000 SP4 and earlier, Windows XP SP3 and earlier, Windows Server 2003 SP2 and earlier, Windows Server 2008 SP2 and earlier, Windows Server 2008 R2, Exchange Server 2003 SP3 and earlier, Exchange Server 2007 SP2 and earlier, and Exchange Server 2010 does not verify that transaction IDs of responses match transaction IDs of queries, which makes it easier for man-in-the-middle attackers to spoof DNS responses, a different vulnerability than CVE-2010-0024 and CVE-2010-0025.