#VU6895 Use-after-free error in MySQL Server - CVE-2017-3302

Vulnerability identifier: #VU6895

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-3302

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MySQL Server
Server applications / Database software

Vendor: Oracle

Description
The vulnerability allows a remote attacker to cause DoS condition on the target system.

The weakness exists due to use-after-free error in the libmysqlclient.so. A remote attacker can cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Update to version 5.6.21, 5.5.55.

Vulnerable software versions

MySQL Server: 5.5.0 - 5.5.54, 5.6.0 - 5.6.20

: before

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External links
https://www.openwall.com/lists/oss-security/2017/02/11/11
https://www.oracle.com/technetwork/security-advisory/cpuapr2017-3236618.html

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.