FrSIRT - MySQL "in_decimal::set()" Function SQL Query Handling Denial of Service Vulnerability / Exploit (Security Advisories)

French Security Incident Response Team

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MySQL "in_decimal::set()" Function SQL Query Handling Denial of Service Vulnerability

Title : MySQL "in_decimal::set()" Function SQL Query Handling Denial of Service Vulnerability
Advisory ID : FrSIRT/ADV-2007-1731
CVE ID : CVE-2007-2583
Rated as : Low Risk

Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-05-09

Advisory Details

Description

Affected Products

Solution

References

Technical Description

A vulnerability has been identified in MySQL, which could be exploited by attackers to cause a denial of service. This issue is caused by a NULL pointer dereference error in the "in_decimal::set()" [item_cmpfunc.cc] function when processing a specially crafted "IF" clause in SQL queries (e.g. SELECT), which could be exploited by attackers to crash an affected database server by supplying a specially crafted SQL request.

Credits

Vulnerability reported by Neil Kettle

ChangeLog

2007-05-09 : Initial release

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