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PostgreSQL Regular Expression Memory Exhaustion Denial-of-Service

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PostgreSQL Regular Expression Memory Exhaustion Denial-of-Service

Severity
7
CVSS
(AV:N/AC:L/Au:S/C:N/I:N/A:C)
Published
01/06/2008
Created
07/25/2018
Added
01/28/2008
Modified
02/13/2015

Description

Algorithmic complexity vulnerability in the regular expression parser in TCL before 8.4.17, as used in PostgreSQL 8.2 before 8.2.6, 8.1 before 8.1.11, 8.0 before 8.0.15, and 7.4 before 7.4.19, allows remote authenticated users to cause a denial of service (memory consumption) via a crafted "complex" regular expression with doubly-nested states.

Solution(s)

  • postgres-upgrade-7_4_19
  • postgres-upgrade-8_0_15
  • postgres-upgrade-8_1_11
  • postgres-upgrade-8_2_6

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