CVE-2008-4114
HighSummary
Podatność w srv.sys w usłudze serwera w systemach Microsoft Windows 2000 SP4, XP SP2 i SP3, Server 2003 SP1 i SP2, Vista Gold i SP1 oraz Server 2008 pozwala zdalnym atakującym na spowodowanie odmowy usługi (awarii systemu) poprzez wysłanie pakietu SMB WRITE_ANDX z niezgodnym przesunięciem w stosunku do rozmiaru pakietu. Problem ten dotyczy niewystarczającej walidacji rozmiaru bufora.
Risk Assessment
Organizacje mogą doświadczyć poważnych zakłóceń w działaniu systemów, co prowadzi do utraty dostępności usług. Atakujący mogą wykorzystać tę podatność do zdalnego wywołania awarii systemu.
Recommendation
Zaleca się aktualizację systemów do najnowszych wersji, które eliminują tę podatność oraz wdrożenie odpowiednich zabezpieczeń sieciowych, aby ograniczyć dostęp do usług SMB.
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Original NVD description (English source)
srv.sys in the Server service in Microsoft Windows 2000 SP4, XP SP2 and SP3, Server 2003 SP1 and SP2, Vista Gold and SP1, and Server 2008 allows remote attackers to cause a denial of service (system crash) or possibly have unspecified other impact via an SMB WRITE_ANDX packet with an offset that is inconsistent with the packet size, related to "insufficiently validating the buffer size," as demonstrated by a request to the \PIPE\lsarpc named pipe, aka "SMB Validation Denial of Service Vulnerability."