Sun Solaris rpcbind(1M) denial of service

solaris-rpcbind-dos (31366) The risk level is classified as MediumMedium Risk

Description:

Sun Solaris is vulnerable to a denial of service, caused by a vulnerability in the rpcbind(1M) server. A local or remote attacker could send a specially-crafted RPC request to the rpcbind(1M) server to cause the server to crash.

*CVSS:

Base Score: 5
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Not Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 4.1
  Exploitability: Functional
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Refer to Sun Alert ID: 102713 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Apply the appropriate update for your system. See References.

References:

  • HP Security Bulletin HPSBUX02370 SSRT071459 rev.1: HP-UX Running rpcbind, Remote Denial of Service (DoS).
  • NORTEL BULLETIN ID: 2008009217, Rev 1: Nortel Response to Sun Alert 200412 - Solaris Vulnerability May Lead to DoS of rpcbind(1M) Service .
  • Sun Alert ID: 102713: A Security Vulnerability in Solaris libnsl(3LIB) may lead to a Denial of Service (DoS) to the rpcbind(1M) Service.
  • ASA-2007-036: A Security Vulnerability in Solaris libnsl(3LIB) may lead to a Denial of Service (DoS) to the rpcbind(1M) Service (Sun 102713)
  • BID-21964: Sun Solaris RPC Request Denial of Service Vulnerability
  • CVE-2007-0165: Unspecified vulnerability in libnsl in Sun Solaris 8 and 9 allows remote attackers to cause a denial of service (crash) via malformed RPC requests that trigger a crash in rpcbind.
  • CVE-2008-4619: The RPC subsystem in Sun Solaris 9 allows remote attackers to cause a denial of service (daemon crash) via a crafted request to procedure 8 in program 100000 (rpcbind), related to the XDR_DECODE operation and the taddr2uaddr function. NOTE: this might be a duplicate of CVE-2007-0165.
  • OSVDB ID: 31576: Solaris libnsl rpcbind Malformed RPC Request Remote DoS
  • OSVDB ID: 48454: HP-UX libnsl rpcbind Malformed RPC Request Remote DoS
  • OSVDB ID: 49474: Solaris RPC Subsystem Crafted Procedure 8 Request Remote DoS
  • SA23700: Sun Solaris rpcbind Denial of Service
  • SA24056: Avaya CMS / IR Sun Solaris rpcbind Denial of Service
  • SA32002: HP-UX rpcbind Denial of Service Vulnerability
  • SECTRACK ID: 1017492: Sun Solaris libnsl __inet_taddr2uaddr() Error Lets Remote Users Deny Service
  • VUPEN/ADV-2007-0110: Sun Solaris libnsl RPC Requests Handling Remote Denial of Service Vulnerability
  • VUPEN/ADV-2008-2945: Libtirpc __rpc_taddr2uaddr_af() Denial of Service Vulnerability

Platforms Affected:

  • HP HP-UX B.11.11
  • HP HP-UX B.11.23
  • Sun Solaris 8 x86
  • Sun Solaris 8 SPARC
  • Sun Solaris 9 SPARC
  • Sun Solaris 9 x86

Reported:

Jan 09, 2007

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