RHSA-2003:094

Vulnerability from csaf_redhat - Published: 2003-04-28 12:53 - Updated: 2025-11-21 17:25
Summary
Red Hat Security Advisory: mysql security update

Notes

Topic
Updated packages are available that fix both a double-free security vulnerability and a remote root exploit security vulnerability found in the MySQL server. [Updated 11 Aug 2003] Updated mysqlclient9 packages are now included. These were previously missing from this erratum.
Details
MySQL is a multi-user, multi-threaded SQL database server. A double-free vulnerability in mysqld, for MySQL before version 3.23.55, allows attackers with MySQL access to cause a denial of service (crash) by creating a carefully crafted client application. A remote root exploit vulnerability in mysqld, for MySQL before version 3.23.56, allows MySQL users to gain root privileges by overwriting configuration files. Previous versions of the MySQL packages do not contain the thread safe client library (libmysqlclient_r). All users of MySQL are advised to upgrade to these errata packages containing MySQL 3.23.56.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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    "notes": [
      {
        "category": "summary",
        "text": "Updated packages are available that fix both a double-free security\nvulnerability and a remote root exploit security vulnerability found in the\nMySQL server.\n\n[Updated 11 Aug 2003] \nUpdated mysqlclient9 packages are now included. These were previously\nmissing from this erratum.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "MySQL is a multi-user, multi-threaded SQL database server.\n\nA double-free vulnerability in mysqld, for MySQL before version 3.23.55,\nallows attackers with MySQL access to cause a denial of service (crash) by\ncreating a carefully crafted client application.\n\nA remote root exploit vulnerability in mysqld, for MySQL before version\n3.23.56, allows MySQL users to gain root privileges by overwriting\nconfiguration files.\n\nPrevious versions of the MySQL packages do not contain the thread safe\nclient library (libmysqlclient_r).\n\nAll users of MySQL are advised to upgrade to these errata packages\ncontaining MySQL 3.23.56.",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
        "title": "Terms of Use"
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      {
        "category": "external",
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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2003/rhsa-2003_094.json"
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    "title": "Red Hat Security Advisory: mysql security update",
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          "text": "Double-free vulnerability in mysqld for MySQL before 3.23.55 allows attackers with MySQL access to cause a denial of service (crash) via mysql_change_user.",
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          "details": "Before applying this update, make sure all previously released errata\nrelevant to your system have been applied.\n\nPlease note that this update is available via Red Hat Network.  To use Red\nHat Network, launch the Red Hat Update Agent with the following command:\n\nup2date\n\nThis will start an interactive process that will result in the appropriate\nRPMs being upgraded on your system.",
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          "text": "MySQL 3.23.55 and earlier creates world-writeable files and allows mysql users to gain root privileges by using the \"SELECT * INFO OUTFILE\" operator to overwrite a configuration file and cause mysql to run as root upon restart, as demonstrated by modifying my.cnf.",
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}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.