#VU45318 Stack-based buffer overflow in Informix Dynamic Server - CVE-2011-1033

Vulnerability identifier: #VU45318

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2011-1033

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Informix Dynamic Server
Server applications / Web servers

Vendor: IBM Corporation

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing crafted arguments in the USELASTCOMMITTED session environment option in a SQL SET ENVIRONMENT statement. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Informix Dynamic Server: 11.50

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External links
https://dvlabs.tippingpoint.com/blog/2011/02/07/zdi-disclosure-ibm
https://secunia.com/advisories/43212
https://securityreason.com/securityalert/8078
https://www.securityfocus.com/archive/1/516250/100/0/threaded
https://www.securityfocus.com/bid/46230
https://www.vupen.com/english/advisories/2011/0309
https://zerodayinitiative.com/advisories/ZDI-11-050/
https://exchange.xforce.ibmcloud.com/vulnerabilities/65209

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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.