Description
Oracle MySQL 5.1.67 and earlier and 5.5.29 and earlier, and MariaDB 5.5.28a and possibly other versions, allows remote authenticated users to cause a denial of service (mysqld crash) via a SELECT command with an UpdateXML command containing XML with a large number of unique, nested elements.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | mysql +7 | 5.1.69-1.el6_4 | RHSA-2013:0772 |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Exploit-DB 1
- MySQL - Denial of Service (PoC) EDB-23078 · dos · Dec 2, 2012
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- RHSA-2013:0772 Red Hat Security Advisory: mysql security update Red Hat Security Advisories (RHSA) · Jun 26, 2026
References
- 1027829 vdb-entry
- 53372 third-party-advisory
- [oss-security] 20121202 Re: Re: [Full-disclosure] MySQL (Linux) Stack based buffer overrun PoC Zeroday mailing-list
- GLSA-201308-06 vendor-advisory
- [oss-security] 20121202 Re: Re: [Full-disclosure] MySQL (Linux) Stack based buffer overrun PoC Zeroday mailing-list
- http://www.oracle.com/technetwork/topics/security/cpuapr2013-1899555.html
- RHSA-2013:0772 vendor-advisory
- 20121201 MySQL Denial of Service Zeroday PoC mailing-list
- https://bugzilla.redhat.com/show_bug.cgi?id=882607
- https://mariadb.atlassian.net/browse/MDEV-3910
- MDVSA-2013:150 vendor-advisory