sql/password.c in Oracle MySQL 5.1.x before 5.1.63, 5.5.x before 5.5.24, and 5.6.x before 5.6.6, and MariaDB 5.1.x before 5.1.62, 5.2.x before 5.2.12, 5.3.x before 5.3.6, and 5.5.x before 5.5.23, when running in certain environments with certain implementations of the memcmp function, allows remote attackers to bypass authentication by repeatedly authenticating with the same incorrect password, which eventually causes a token comparison to succeed due to an improperly-checked return value.

This version upgrade of mysql-cluster to version 7.1.22 fixed an authentication bypass flaw. Additionally, this version upgrade also includes fixes for various other bugs.

Version upgrade to 5.5.25 of MySQL to fix an authentication bypass flaw. Additionally, various other non-security bugs were fixed.

The remote host is affected by the vulnerability described in GLSA-201308-06 (MySQL: Multiple vulnerabilities)

    Multiple vulnerabilities have been discovered in MySQL. Please review       the CVE identifiers referenced below for details.
  Impact :

    A remote attacker could send a specially crafted request, possibly       resulting in execution of arbitrary code with the privileges of the       application or a Denial of Service condition.
  Workaround :

    There is no known workaround at this time.

MySQL has been upgraded to version 5.0.96 to fix several vulnerabilities.

A stack-based buffer overflow flaw was found in the user permission checking code in MySQL. An authenticated database user could use this flaw to crash the mysqld daemon or, potentially, execute arbitrary code with the privileges of the user running the mysqld daemon.
(CVE-2012-5611)

A flaw was found in the way MySQL calculated the key length when creating a sort order index for certain queries. An authenticated database user could use this flaw to crash the mysqld daemon.
(CVE-2012-2749)

This update also adds a patch for a potential flaw in the MySQL password checking function, which could allow an attacker to log into any MySQL account without knowing the correct password. This problem (CVE-2012-2122) only affected MySQL packages that use a certain compiler and C library optimization. It did not affect the mysql packages in Scientific Linux 5. The patch is being added as a preventive measure to ensure this problem cannot get exposed in future revisions of the mysql packages.

After installing this update, the MySQL server daemon (mysqld) will be restarted automatically.

The remote Redhat Enterprise Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2012:1462 advisory.

  - mysql: unspecified vulnerability related to GIS extension DoS  (CPU Jul 2012) (CVE-2012-0540)

  - mysql: unspecified DoS vulnerability related to DML (CPU Apr 2012) (CVE-2012-1688)

  - mysql: unspecified DoS vulnerability related to Server Optimizer (CPU Jul 2012) (CVE-2012-1689,     CVE-2012-1734)

  - mysql: unspecified DoS vulnerability related to Server Optimizer (CPU Apr 2012) (CVE-2012-1690,     CVE-2012-1703)

  - mysql: incorrect type cast in check_scramble() leading to authentication bypass (CVE-2012-2122)

  - mysql: crash caused by wrong calculation of key length for sort order index (CVE-2012-2749)

  - mysql: unspecified DoS vulnerability related to Server Optimizer (CPU Oct 2012) (CVE-2012-3150,     CVE-2012-3180)

  - mysql: unspecified vulnerability related to the MySQL Protocol (CPU Oct 2012) (CVE-2012-3158)

  - mysql: unspecified vulnerability in Server Installation leading to information disclosure (CPU Oct 2012)     (CVE-2012-3160)

  - mysql: unspecified vulnerability related to Information Schema (CPU Oct 2012) (CVE-2012-3163)

  - mysql: unspecified DoS vulnerability related to InnoDB (CPU Oct 2012) (CVE-2012-3166)

  - mysql: unspecified DoS vulnerability related to Server Full Text Search (CPU Oct 2012) (CVE-2012-3167)

  - mysql: unspecified DoS vulnerability related to InnoDB Plugin (CPU Oct 2012) (CVE-2012-3173)

  - mysql: unspecified Server DoS vulnerability (CPU Oct 2012) (CVE-2012-3177)

  - mysql: unspecified DoS vulnerability related to Server Replication (CPU Oct 2012) (CVE-2012-3197)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

A flaw in the MySQL server allows remote users to authenticate without a valid password due to a failure when casting a randomly generated token and comparing it to an expected value.

The version of MySQL 5.5 installed on the remote host is earlier than 5.5.24 and is, therefore, affected by the following vulnerabilities :

  - Several errors exist related to 'GIS Extension',  'Server', 'InnoDB' and 'Server Optimizer' components that can allow denial of service attacks. (CVE-2012-0540, CVE-2012-1734, CVE-2012-1735, CVE-2012-1756, CVE-2012-1757)

  - A security bypass vulnerability exists that occurs due to improper casting during user login sessions. (Bug #64884 / CVE-2012-2122)

  - An error exists related to key length and sort order  index that can lead to application crashes. (Bug #59387 / CVE-2012-2749)

The version of MySQL 5.1 installed on the remote host is earlier than 5.1.63 and is, therefore, affected by the following vulnerabilities :

  - Several errors exist related to 'GIS Extension' and 'Server Optimizer' components that can allow denial of service attacks. (CVE-2012-0540, CVE-2012-1689, CVE-2012-1734)

  - A security bypass vulnerability exists that occurs due to improper casting during user login sessions. (Bug #64884 / CVE-2012-2122)

  - An error exists related to key length and sort order  index that can lead to application crashes. (Bug #59387 / CVE-2012-2749

Due to the non-disclosure of security patch information from     Oracle, we are forced to ship an upstream version update of MySQL     5.1. There are several known incompatible changes, which are     listed in /usr/share/doc/mysql-server/NEWS.Debian.gz.

Several issues have been discovered in the MySQL database server. The vulnerabilities are addressed by upgrading MySQL to a new upstream version, 5.1.63, which includes additional changes, such as performance improvements and corrections for data loss defects. These changes are described in the MySQL release notes.

 CVE-2012-2122, an authentication bypass vulnerability, occurs only  when MySQL has been built in with certain optimisations enabled. The  packages in Debian stable (squeeze) are not known to be affected by  this vulnerability. It is addressed in this update nonetheless, so  future rebuilds will not become vulnerable to this issue.

Update to MySQL 5.5.24, for various fixes described at http://dev.mysql.com/doc/refman/5.5/en/news-5-5-24.html including the fix for CVE-2012-2122

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

It was discovered that certain builds of MySQL incorrectly handled password authentication on certain platforms. A remote attacker could use this issue to authenticate with an arbitrary password and establish a connection. (CVE-2012-2122)

MySQL has been updated to 5.5.24 in Ubuntu 12.04 LTS. Ubuntu 10.04 LTS, Ubuntu 11.04 and Ubuntu 11.10 have been updated to MySQL 5.1.63.
A patch to fix the issue was backported to the version of MySQL in Ubuntu 8.04 LTS.

In addition to additional security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information :

http://dev.mysql.com/doc/refman/5.5/en/news-5-5-24.html http://dev.mysql.com/doc/refman/5.1/en/news-5-1-63.html

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The version of MySQL 5.5 installed on the remote host is earlier than 5.5.24 and is, therefore, affected by the following vulnerabilities :

  - Several errors exist related to 'GIS Extension',     'Server', 'InnoDB' and 'Server Optimizer' components     that can allow denial of service attacks.
    (CVE-2012-0540, CVE-2012-1734, CVE-2012-1735,     CVE-2012-1756, CVE-2012-1757)

  - A security bypass vulnerability exists that occurs due     to improper casting during user login sessions.
    (Bug #64884 / CVE-2012-2122)

  - An error exists related to key length and sort order     index that can lead to application crashes.
    (Bug #59387 / CVE-2012-2749)

The version of MySQL 5.1 installed on the remote host is earlier than 5.1.63 and is, therefore, affected by multiple vulnerabilities :

  - Several errors exist related to 'GIS Extension' and     'Server Optimizer' components that can allow denial of     service attacks. (CVE-2012-0540, CVE-2012-1689,     CVE-2012-1734)

  - A security bypass vulnerability exists that occurs due     to improper casting during user login sessions.
    (Bug #64884 / CVE-2012-2122)

  - An error exists related to key length and sort order     index that can lead to application crashes.
    (Bug #59387 / CVE-2012-2749)

ID	Name	Product	Family	Severity
74673	openSUSE Security Update : mysql-cluster (openSUSE-SU-2012:0860-1)	Nessus	SuSE Local Security Checks	medium
74654	openSUSE Security Update : mysql-community-server (openSUSE-2012-332)	Nessus	SuSE Local Security Checks	medium
69700	Amazon Linux AMI : mysql55 (ALAS-2012-93)	Nessus	Amazon Linux Local Security Checks	medium
69508	GLSA-201308-06 : MySQL: Multiple vulnerabilities	Nessus	Gentoo Local Security Checks	medium
64183	SuSE 11.1 Security Update : MySQL (SAT Patch Number 6613)	Nessus	SuSE Local Security Checks	medium
63678	Scientific Linux Security Update : mysql on SL5.x i386/x86_64 (20130122)	Nessus	Scientific Linux Local Security Checks	medium
62923	RHEL 6 : mysql (RHSA-2012:1462)	Nessus	Red Hat Local Security Checks	critical
61393	MySQL Authentication Protocol Token Comparison Casting Failure Password Bypass	Nessus	Databases	medium
801157	MySQL Server 5.5 < 5.5.24 Multiple Unspecified Vulnerabilities	Log Correlation Engine	Database	medium
801134	MySQL Server 5.1 < 5.1.63 Multiple Vulnerabilities	Log Correlation Engine	Database	medium
6653	Oracle MySQL Server 5.1 < 5.1.63 Multiple Vulnerabilities	Nessus Network Monitor	Database	high
6515	Oracle MySQL Server 5.5 < 5.5.24 Multiple Unspecified Vulnerabilities	Nessus Network Monitor	Database	high
59774	Debian DSA-2496-1 : mysql-5.1 - several vulnerabilities	Nessus	Debian Local Security Checks	medium
59720	Fedora 16 : mysql-5.5.24-1.fc16 (2012-9324)	Nessus	Fedora Local Security Checks	medium
59546	Fedora 17 : mysql-5.5.24-1.fc17 (2012-9308)	Nessus	Fedora Local Security Checks	medium
59452	Ubuntu 8.04 LTS / 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : mysql-5.1, mysql-5.5, mysql-dfsg-5.0, mysql-dfsg-5.1 vulnerabilities (USN-1467-1)	Nessus	Ubuntu Local Security Checks	medium
59449	MySQL 5.5 < 5.5.24 Security Bypass Vulnerability	Nessus	Databases	medium
59448	MySQL 5.1 < 5.1.63 Multiple Vulnerabilities	Nessus	Databases	medium

Detections

Analytics

CVE-2012-2122

high

Tenable Plugins

medium

medium

medium

medium

medium

medium

critical

medium

medium

medium

high

high

medium

medium

medium

medium

medium

medium