CVE-2017-3599: Integer Overflow
First published: Wed Apr 19 2017(Updated: )
Vulnerability in the MySQL Server component of Oracle MySQL (subcomponent: Server: Pluggable Auth). Supported versions that are affected are 5.6.35 and earlier and 5.7.17 and earlier. Easily "exploitable" vulnerability allows unauthenticated 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 7.5 (Availability impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). NOTE: the previous information is from the April 2017 CPU. Oracle has not commented on third-party claims that this issue is an integer overflow in sql/auth/sql_authentication.cc which allows remote attackers to cause a denial of service via a crafted authentication packet.
Credit: secalert_us@oracle.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/mysql | <5.6.36 | 5.6.36 |
| redhat/mysql | <5.7.18 | 5.7.18 |
| Oracle MySQL Installer | >=5.6.0<=5.6.35 | |
| Oracle MySQL Installer | >=5.7.0<=5.7.17 |
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Reference Links
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html
- http://www.securityfocus.com/bid/97754
- http://www.securitytracker.com/id/1038287
- https://access.redhat.com/errata/RHSA-2017:2787
- https://access.redhat.com/errata/RHSA-2017:2886
- https://www.exploit-db.com/exploits/41954/
- https://www.secforce.com/blog/2017/04/cve-2017-3599-pre-auth-mysql-remote-dos/
- http://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html#AppendixMSQL
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1443407
- https://github.com/mysql/mysql-server/commit/f4165eae6384141905dd39d22c7611ea85de08f4
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=1443386#c2
- https://bugzilla.redhat.com/show_bug.cgi?id=1443386
Frequently Asked Questions
What is the severity of CVE-2017-3599?
CVE-2017-3599 is considered an easily exploitable vulnerability that can be leveraged by unauthenticated attackers with network access.
How do I fix CVE-2017-3599?
To mitigate CVE-2017-3599, upgrade to MySQL version 5.6.36 or 5.7.18 or later.
Which MySQL versions are affected by CVE-2017-3599?
CVE-2017-3599 affects MySQL versions 5.6.35 and earlier, as well as 5.7.17 and earlier.
Does CVE-2017-3599 allow remote attacks?
Yes, CVE-2017-3599 allows unauthenticated attackers to exploit the vulnerability remotely.
What component of MySQL does CVE-2017-3599 involve?
CVE-2017-3599 involves a vulnerability in the MySQL Server component related to Pluggable Authentication.
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