| Vigil@nce describes vulnerabilities impacting your systems, and offers solutions to correct them. |
|
 |
|
|
|
vulnerability bulletin CVE-2010-0442
PostgreSQL: memory corruption via substring
Synthesis of the vulnerability
| An authenticated attacker can use the substring() function, in order to generate a corruption, leading to a denial of service or to code execution with database privileges. |
Severity: 2/4.
Consequences: privileged access/rights, denial of service of service.
Provenance: user account.
Means of attack: 1 attack.
Ability of attacker: technician (2/4).
Confidence: unique source (2/5).
Diffusion of the vulnerable configuration: high (3/3).
Creation date: 28/01/2010.
|
Impacted products
Description of the vulnerability
The SQL substring() function extracts a character string. For example, to extract "ell" (from offset 2, with size 3) :
SELECT substring('Hello', 2, 3);
A "Bit String" is a string containing 0 and 1 values. For example: B'101'
When the substring() function is called on a Bit String, a memory corruption occurs.
An authenticated attacker can therefore use the substring() function, in order to generate a corruption, leading to a denial of service or to code execution with database privileges. |
Characteristics
Information sources
Supplements
|
