Denial of service in IBM DB2

1) Improper input validation

EUVDB-ID: #VU16565

Risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-1977

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

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

The vulnerability exists due to an error when processing malicious input. A remote attacker can issue a specially crafted SELECT statement with TRUNCATE function and cause the service to crash.

Mitigation

Update to version 11.1.4.4.

Vulnerable software versions

IBM DB2: 11.1.0.0

External links

http://www-01.ibm.com/support/docview.wss?uid=ibm10788089

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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