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Denial of Service Condition in Microsoft Windows NT 4.0 Endpoint Mapper Service
A vulnerability exists in NT 4.0 remote procedure call (RPC) endpoint mapper service that an attacker can use to cause a Denial of Service (DoS) condition.
Ken Pfeil
September 12, 2001
1 Min Read
Reported September 10, 2001, byMicrosoft.
VERSIONS AFFECTED
Microsoft Windows NT 4.0 Workstation
Microsoft Windows NT 4.0 Server
Microsoft Windows NT 4.0 Server, Enterprise Edition
Microsoft Windows NT Server 4.0, Terminal Server Edition
DESCRIPTION
Avulnerability exists in NT 4.0 remote procedure call (RPC) endpoint mapperservice that an attacker can use to cause a Denial of Service (DoS) condition. Aproblem in the service causes it to fail when an attacker sends a request thatcontains a particular type of malformed data.
VENDOR RESPONSE
Thevendor, Microsoft, has released securitybulletin MS01-048to address this vulnerability and recommends that affected users apply the patchprovided at its Web site. Microsoft will provide a patch for WTS at bulletin MS01-048when the patch becomes available.
CREDIT
Discoveredby SeiichiTatsukawa of Rational Software.
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