Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Client mysqldump). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in takeover of MySQL Server. Note: CVE-2017-3600 is equivalent to CVE-2016-5483. CVSS 3.0 Base Score 6.6 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H).
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Privileges). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Privileges). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Security: Privileges). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DDL). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of MySQL Server accessible data. CVSS 3.0 Base Score 4.3 (Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N).
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DML). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 4.9 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H).
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer). Supported versions that are affected are 5.5.54 and earlier, 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.0 Base Score 6.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H).
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Error Handling ). Supported versions that are affected are 5.5.53 and earlier, 5.6.34 and earlier and 5.7.16 and earlier. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Server accessible data.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Logging ). Supported versions that are affected are 5.5.53 and earlier, 5.6.34 and earlier and 5.7.16 and earlier. Difficult to exploit vulnerability allows high privileged attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: MyISAM ). Supported versions that are affected are 5.5.53 and earlier, 5.6.34 and earlier and 5.7.16 and earlier. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where MySQL Server executes to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized access to critical data or complete access to all MySQL Server accessible data.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
MySQL versions 5.5.52, 5.6.33, and 5.7.15 corrected a flaw in the way error log file was handled by mysqldsafe script. The issue allows mysql system user to escalate their privileges to root, and got two CVE ids assigned - CVE-2016-6664 and CVE-2016-5617 - see bug 1386564.
The original fix was applied as part of the patch for another issue - CVE-2016-6662:
https://github.com/mysql/mysql-server/commit/684a165f28b3718160a3e4c5ebd18a465d85e97c
The fix attempted to prevent script from using touch/chown/chmod on the configured log file if it was a symbolic link. This fix was found to be incomplete and having the following issues:
- Fix was racy, and the race was quite easy to win. Changing ownership and mode of arbitrary files was still possible.
- After the fix, mysqldsafe no longer tried to change ownership or mode of the log file if it was symlink, but it still used the file for logging and written new log entries to it. This allowed arbitrary file corruption, at least.
- It was possible to set log-error to point to arbitrary file, bypassing symlinks checks added by the fix.
These additional problems were corrected in versions 5.5.54, 5.6.35, and 5.7.17:
Unsafe use of rm and chown in mysqldsafe could result in privilege escalation. chown now can be used only when the target directory is /var/log. An incompatible change is that if the directory for the Unix socket file is missing, it is no longer created; instead, an error occurs. Due to these changes, /bin/bash is required to run mysqldsafe on Solaris. /bin/sh is still used on other Unix/Linux platforms.
http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-54.html http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-35.html http://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-17.html
via the following commit:
https://github.com/mysql/mysql-server/commit/1f93f4381b60e3a8012ba36a4dec920416073759
This fix, however, effectively disables mysqldsafe's logging to file if the script is running as root.
It was found that MySQL client when specified to use SSL/TLS mode is authenticating to MySQL server not supporting SSL/TLS, client will fallback to plain text protocol used for authentication. After successful authentication client checks if SSL/TLS layer is required and if server doesn't support it, client will close the connection with error.
Active MITM attacker can downgrade SSL/TLS to plain text and forward nonce from server back to client. MITM attacker receive login data (for server nonce) from client and send it to server to authenticate as client.
This issue is present in libmysqlclient.so in 5.5 and 5.6 versions.
It was discovered that the mysqldsafe could read ledir value - which specifies the directory where mysqld is stored - from configuration file. This could allow a user with privileges to write to some mysql configuration file - either mysql OS user, or any local OS user able to write to the config via some other way, e.g. by exploiting CVE-2016-6662 - to escalate their privileges to root if mysqldsafe was run with root privileges.
This problem is related to this change applied as part of the CVE-2016-6662 fix:
https://github.com/mysql/mysql-server/commit/684a165f28b3718160a3e4c5ebd18a465d85e97c#diff-144aa2f11374843c969d96b7b84247eaR211
It introduced restriction that mysqld and mysqldversion options can only be specified on the command line and can not be defined in a configuration file. However, such restriction was trivial to bypass while ledir was not restricted in a similar way.
Restriction for ledir was added in MySQL versions 5.5.54, 5.6.35, and 5.7.17. The following related entry can be found in the release notes:
The --ledir option now is accepted only on the command line, not in option files.
http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-54.html http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-35.html http://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-17.html
MySQL upstream commit:
https://github.com/mysql/mysql-server/commit/53230ba274a37fa13d65e802c6ef3766cd0c6d91#diff-144aa2f11374843c969d96b7b84247ea
The CVE was made public via Oracle CPU January 2017:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
Multiple cases of insecure use of chmod and chown were found in the MySQL init script:
- In database directory initialization code: https://github.com/mysql/mysql-server/blob/mysql-5.6.34/packaging/rpm-oel/mysql.init#L97
- In code handling error log file creation and permission setting: https://github.com/mysql/mysql-server/blob/mysql-5.6.34/packaging/rpm-oel/mysql.init#L73
The mysql OS user could use these flaws to escalate privileges to root.
Note that the second issue is only exploitable in configurations where log file is stored in a directory writable to the mysql OS user. If log file is stored in the /var/log directory, mysql user is not able to replace it with a link to some other file.
This issue was fixed in MySQL versions 5.5.54, 5.6.35, and 5.7.17. The following related entry can be found in the release notes:
Initialization scripts create the error log file only if the base directory is /var/log or /var/lib.
http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-54.html http://dev.mysql.com/doc/relnotes/mysql/5.6/en/news-5-6-35.html http://dev.mysql.com/doc/relnotes/mysql/5.7/en/news-5-7-17.html
MySQL upstream commit:
https://github.com/mysql/mysql-server/commit/53230ba274a37fa13d65e802c6ef3766cd0c6d91#diff-5fccc3d0e109e8f9ad0653728bd1d975
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DDL ). Supported versions that are affected are 5.5.53 and earlier, 5.6.34 and earlier and 5.7.16 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Charsets ). Supported versions that are affected are 5.5.53 and earlier. Difficult to exploit vulnerability allows high privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: DML ). Supported versions that are affected are 5.5.53 and earlier, 5.6.34 and earlier and 5.7.16 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Optimizer ). Supported versions that are affected are 5.5.53 and earlier, 5.6.34 and earlier and 5.7.16 and earlier. Easily exploitable vulnerability allows low privileged attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server.
External References:
http://www.oracle.com/technetwork/security-advisory/cpujan2017-2881727.html#AppendixMSQL
Unspecified vulnerability in the MySQL Client component in Oracle MySQL 5.5.36 and earlier and 5.6.16 and earlier allows remote attackers to affect confidentiality, integrity, and availability via unknown vectors.
Unspecified vulnerability in Oracle MySQL Server 5.5.36 and earlier and 5.6.16 and earlier allows remote authenticated users to affect confidentiality, integrity, and availability via vectors related to RBR.
Unspecified vulnerability in Oracle MySQL Server 5.5.35 and earlier and 5.6.15 and earlier allows remote authenticated users to affect availability via unknown vectors related to Partition.
Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.1.72 and earlier, 5.5.34 and earlier, and 5.6.14 and earlier allows remote authenticated users to affect availability via unknown vectors related to InnoDB.
Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.1.72 and earlier, 5.5.34 and earlier, and 5.6.14 and earlier allows remote authenticated users to affect availability via unknown vectors.
Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.1.71 and earlier, 5.5.33 and earlier, and 5.6.13 and earlier allows remote authenticated users to affect availability via unknown vectors related to Locking.
Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.1.71 and earlier, 5.5.33 and earlier, and 5.6.13 and earlier allows remote authenticated users to affect availability via unknown vectors related to Optimizer.
Unspecified vulnerability in the MySQL Server component in Oracle MySQL 5.5.35 and earlier and 5.6.15 and earlier allows remote authenticated users to affect availability via vectors related to XML.
Last updated 18 August 2025
Last updated 18 August 2025
Last updated 18 August 2025
Last updated 18 August 2025