#VU35623 Buffer overflow in Informix Dynamic Server - CVE-2018-1636

Vulnerability identifier: #VU35623

Vulnerability risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2018-1636

CWE-ID: CWE-119

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
Informix Dynamic Server
Server applications / Web servers

Vendor: IBM Corporation

Description

The vulnerability allows a local privileged user to execute arbitrary code.

Stack-based buffer overflow in oninit in IBM Informix Dynamic Server Enterprise Edition 12.1 allows an authenticated user to execute predefined code with root privileges, such as escalating to a root shell. IBM X-Force ID: 144441.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Informix Dynamic Server: 12.10

---

External links
https://www.ibm.com/support/docview.wss?uid=ibm10964987
https://exchange.xforce.ibmcloud.com/vulnerabilities/144441
https://security.netapp.com/advisory/ntap-20190903-0002/

---

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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