PostgreSQL enum_recv() denial of service

postgresql-enumrecv-dos (81917) The risk level is classified as MediumMedium Risk

Description:

PostgreSQL is vulnerable to a denial of service, caused by the improper validation of input by the enum_recv() function. A remote attacker could exploit this vulnerability using a specially-crafted query to cause the server to crash.

*CVSS:

Base Score: 5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: None
  Integrity Impact: None
  Availability Impact: Partial
 
Temporal Score: 3.7
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Denial of Service

Remedy:

Upgrade to the latest version of PostgreSQL (8.3.23, 8.4.16, 9.0.12, 9.1.8, or 9.2.3 or later), available from the PostgreSQL Web site. See References.

References:

  • Oracle Security Blog, Apr 02, 2013: CVE-2013-0255 Array Index error vulnerability in PostgreSQL.
  • PostgreSQL Web Site: Security Information.
  • Red Hat Bugzilla Bug 908722: CVE-2013-0255 postgresql: (Heap-based) Array index error when retrieving textual error message representation for certain enum types [fedora-all].
  • BID-57844: PostgreSQL 'enum_recv()' Function Denial of Service Vulnerability
  • CVE-2013-0255: PostgreSQL 9.2.x before 9.2.3, 9.1.x before 9.1.8, 9.0.x before 9.0.12, 8.4.x before 8.4.16, and 8.3.x before 8.3.23 does not properly declare the enum_recv function in backend/utils/adt/enum.c, which causes it to be invoked with incorrect arguments and allows remote authenticated users to cause a denial of service (server crash) or read sensitive process memory via a crafted SQL command, which triggers an array index error and an out-of-bounds read.
  • DSA-2630: postgresql-8.4 -- programming error
  • RHSA-2013-1475: Moderate: postgresql and postgresql84 security update
  • SA51923: PostgreSQL "enum_recv()" Denial of Service Vulnerability
  • SA52819: Oracle Solaris PostgreSQL "enum_recv()" Denial of Service Vulnerability

Platforms Affected:

  • PostgreSQL PostgreSQL 9.2.2-1 64-bit
  • RedHat Enterprise Linux 5
  • RedHat Enterprise Linux 5 Client Workstation
  • RedHat Enterprise Linux 5 Client
  • RedHat Enterprise Linux 6 Server
  • RedHat Enterprise Linux 6 Workstation
  • RedHat Enterprise Linux Desktop 6
  • RedHat Enterprise Linux HPC Node 6
  • Sun Solaris 10

Reported:

Feb 07, 2013

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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