Network Audio System ReadRequestFromClient denial of service

nas-readrequestfromclient-dos (33059) The risk level is classified as MediumMedium Risk

Description:

Network Audio System is vulnerable to a denial of service, caused by a NULL pointer dereference in the ReadRequestFromClient() function when processing simultaneous connections. A local or remote attacker could exploit this vulnerability to cause the application to crash.

*CVSS:

Base Score: 3
  Access Vector: Remote
  Access Complexity: Low
  Authentication: Required
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Complete
 
Temporal Score: 2.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the fixed version of Network Audio System, available from the SVN Repository. See References.

For Debian Linux:
Refer to DSA-1273-1 for patch, upgrade, or suggested workaround information. See References.

For Ubuntu Linux:
Refer to USN-446-1 for patch, upgrade, or suggested workaround information. See References.

For Mandriva Linux (nas):
Refer to MDKSA-2007:065 for patch, upgrade, or suggested workaround information. See References.

For Gentoo Linux (NAS):
Refer to GLSA 200704-20 for patch, upgrade, or suggested workaround information. See References.

For other distributions:
Contact your vendor for upgrade or patch information.

References:

  • Luigi Auriemma Advisory 18 Mar 2007: Multiple vulnerabilities in NAS 1.8a (svn 231).
  • Network Audio System Web page: Network Audio System.
  • BID-23017: Network Audio System Local Privilege Escalation and Denial of Service Vulnerabilities
  • CVE-2007-1547: The ReadRequestFromClient function in server/os/io.c in Network Audio System (NAS) before 1.8a SVN 237 allows remote attackers to cause a denial of service (crash) via multiple simultaneous connections, which triggers a NULL pointer dereference.
  • DSA-1273: nas -- several vulnerabilities
  • GLSA-200704-20: NAS: Multiple vulnerabilities
  • MDKSA-2007:065: Updated nas packages address multiple vulnerabilities
  • SA24527: Network Audio System Multiple Vulnerabilities
  • SECTRACK ID: 1017822: Network Audio System Bugs Let Remote Users Deny Service or Execute Arbitrary Code
  • USN-446-1: NAS vulnerabilities
  • VUPEN/ADV-2007-0997: Network Audio System Multiple Memory Corruption and Denial of Service Vulnerabilities

Platforms Affected:

  • Canonical Ubuntu 5.10
  • Canonical Ubuntu 6.06 LTS
  • Canonical Ubuntu 6.10
  • Debian Debian Linux 3.1
  • Gentoo Linux
  • MandrakeSoft Mandrake Linux 2007 X86_64
  • MandrakeSoft Mandrake Linux 2007
  • Network Audio System Network Audio System 1.8a

Reported:

Mar 18, 2007

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