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Secunia Security Advisory 50485

Secunia Security Advisory 50485
Posted Sep 7, 2012
Authored by Secunia | Site secunia.com

Secunia Security Advisory - Some vulnerabilities have been reported in MariaDB, which can be exploited by malicious users to cause a DoS (Denial of Service).

tags | advisory, denial of service, vulnerability
MD5 | 03c81403ff17cb8a3ae6044d3c0b31b1

Secunia Security Advisory 50485

Change Mirror Download
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The final version of the CSI 6.0 has been released.
Find out why this is not just another Patch Management solution: http://secunia.com/blog/325/

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TITLE:
MariaDB Multiple Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA50485

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50485/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50485

RELEASE DATE:
2012-09-07

DISCUSS ADVISORY:
http://secunia.com/advisories/50485/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
* Last Update
* Popularity
* Comments
* Criticality Level
* Impact
* Where
* Solution Status
* Operating System / Software
* CVE Reference(s)

http://secunia.com/advisories/50485/

ONLY AVAILABLE IN CUSTOMER AREA:
* Authentication Level
* Report Reliability
* Secunia PoC
* Secunia Analysis
* Systems Affected
* Approve Distribution
* Remediation Status
* Secunia CVSS Score
* CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=50485

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
* AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Some vulnerabilities have been reported in MariaDB, which can be
exploited by malicious users to cause a DoS (Denial of Service).

1) A NULL pointer dereference error within the
"test_if_skip_sort_order()" function (sql_select.cc) when executing
subqueries can be exploited to crash the service via a specially
crafted query.

2) An error exists within the "select_describe()" function
(sql/sql_select.cc) when handling certain subqueries, which frees
certain currently used tables and can be exploited to cause a crash
via a specially crafted query.

3) An error when handling the query cache when running parallel
queries can be exploited to cause a crash via specially crafted
queries run in parallel.

The vulnerabilities are reported in version 5.5.25. Other versions
may also be affected.

SOLUTION:
Fixed in development version 5.5.27.

PROVIDED AND/OR DISCOVERED BY:
1, 2) Reported by the vendor.
3) jbergstroem in a bug report

ORIGINAL ADVISORY:
http://kb.askmonty.org/en/mariadb-5527-release-notes/
https://mariadb.atlassian.net/browse/MDEV-405
https://mariadb.atlassian.net/browse/MDEV-430
https://launchpad.net/~bugs-bergstroem

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

----------------------------------------------------------------------

About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

----------------------------------------------------------------------

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