Vulnerability Name:

CVE-1999-0723 (CCN-2299)

Assigned:1999-06-23
Published:1999-06-23
Updated:2018-10-12
Summary:The Windows NT Client Server Runtime Subsystem (CSRSS) can be subjected to a denial of service when all worker threads are waiting for user input.
CVSS v3 Severity:5.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Low
CVSS v2 Severity:7.1 High (CVSS v2 Vector: AV:N/AC:M/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
5.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
Vulnerability Type:CWE-Other
Vulnerability Consequences:Denial of Service
References:Source: CCN
Type: CIAC Information Bulletin J-049
Windows NT, Two Denial-of-Service Vulnerabilities (Malformed LSA Request and CSRSS Worker Thread Exhaustion)

Source: MITRE
Type: CNA
CVE-1999-0723

Source: MSKB
Type: UNKNOWN
Q233323

Source: CIAC
Type: UNKNOWN
J-049

Source: CCN
Type: Microsoft Product Support Services
Windows NT Service Packs

Source: CCN
Type: Microsoft Security Bulletin MS99-021
Patch Available for 'CSRSS Worker Thread Exhaustion' Vulnerability

Source: CCN
Type: OSVDB ID: 11474
Microsoft Windows NT CSRSS Thread Exhaustion DoS

Source: BID
Type: UNKNOWN
478

Source: CCN
Type: BID-478
NT CSRSS Worker Thread Exhaustion Vulnerability

Source: MS
Type: UNKNOWN
MS99-021

Source: XF
Type: UNKNOWN
nt-csrss-dos(2299)

Source: CCN
Type: Microsoft Knowledge Base Article 233323
Exceeding MaxRequestThreads may Cause Windows NT to Hang

Vulnerable Configuration:Configuration 1:
  • cpe:/o:microsoft:windows_2000:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_nt:*:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_nt:4.0:sp5:*:*:*:*:*:*

  • Configuration CCN 1:
  • cpe:/o:microsoft:windows_nt:4.0:*:*:*:*:*:*:*
  • OR cpe:/o:microsoft:windows_2000:*:*:*:*:*:*:*:*

  • * Denotes that component is vulnerable
    BACK
    microsoft windows 2000 *
    microsoft windows nt *
    microsoft windows nt 4.0 sp5
    microsoft windows nt 4.0
    microsoft windows 2000 *