CVE-2021-20515

Severity Score

6.7

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

IBM Informix Dynamic Server 14.10 is vulnerable to a stack based buffer overflow, caused by improper bounds checking. A local privileged user could overflow a buffer and execute arbitrary code on the system or cause a denial of service condition. IBM X-Force ID: 198366.

IBM Informix Dynamic Server versión 14.10, es vulnerable a un desbordamiento del búfer en la región stack de la memoria, causado por una comprobación de límites inapropiada. Un usuario privilegiado local podría desbordar un búfer y ejecutar código arbitrario en el sistema o causar una condición de denegación de servicio.  IBM X-Force ID: 198366.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

High

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2020-12-17 CVE Reserved
2021-04-30 CVE Published
2023-03-08 EPSS Updated
2024-09-16 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC
https://www.ibm.com/support/pages/node/6448568	2021-04-30

URL	Date	SRC
https://exchange.xforce.ibmcloud.com/vulnerabilities/198366	2021-04-30

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Ibm Search vendor "Ibm"	Informix Dynamic Server Search vendor "Ibm" for product "Informix Dynamic Server"	14.10 Search vendor "Ibm" for product "Informix Dynamic Server" and version "14.10"	-	Affected	in	Hp Search vendor "Hp"	Hp-ux Search vendor "Hp" for product "Hp-ux"	-	-	Safe
Ibm Search vendor "Ibm"	Informix Dynamic Server Search vendor "Ibm" for product "Informix Dynamic Server"	14.10 Search vendor "Ibm" for product "Informix Dynamic Server" and version "14.10"	-	Affected	in	Ibm Search vendor "Ibm"	Aix Search vendor "Ibm" for product "Aix"	-	-	Safe
Ibm Search vendor "Ibm"	Informix Dynamic Server Search vendor "Ibm" for product "Informix Dynamic Server"	14.10 Search vendor "Ibm" for product "Informix Dynamic Server" and version "14.10"	-	Affected	in	Linux Search vendor "Linux"	Linux Kernel Search vendor "Linux" for product "Linux Kernel"	-	-	Safe
Ibm Search vendor "Ibm"	Informix Dynamic Server Search vendor "Ibm" for product "Informix Dynamic Server"	14.10 Search vendor "Ibm" for product "Informix Dynamic Server" and version "14.10"	-	Affected	in	Microsoft Search vendor "Microsoft"	Windows Search vendor "Microsoft" for product "Windows"	-	-	Safe
Ibm Search vendor "Ibm"	Informix Dynamic Server Search vendor "Ibm" for product "Informix Dynamic Server"	14.10 Search vendor "Ibm" for product "Informix Dynamic Server" and version "14.10"	-	Affected	in	Oracle Search vendor "Oracle"	Solaris Search vendor "Oracle" for product "Solaris"	-	-	Safe