6.5
MEDIUM
CVE-2021-20494
IBM Security Identity Manager Adapters Heap Buffer Overflow Vulnerability
Description

IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.

INFO

Published Date :

June 28, 2021, 4:15 p.m.

Last Modified :

June 29, 2021, 9 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
Affected Products

The following products are affected by CVE-2021-20494 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ibm security_identity_manager_adapter
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2021-20494.

URL Resource
https://exchange.xforce.ibmcloud.com/vulnerabilities/197882 VDB Entry
https://www.ibm.com/support/pages/node/6465875 Patch Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2021-20494 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2021-20494 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Jun. 29, 2021

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:N/I:N/A:P)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
    Changed Reference Type https://exchange.xforce.ibmcloud.com/vulnerabilities/197882 No Types Assigned https://exchange.xforce.ibmcloud.com/vulnerabilities/197882 VDB Entry
    Changed Reference Type https://www.ibm.com/support/pages/node/6465875 No Types Assigned https://www.ibm.com/support/pages/node/6465875 Patch, Vendor Advisory
    Added CWE NIST CWE-787
    Added CPE Configuration OR *cpe:2.3:a:ibm:security_identity_manager_adapter:6.0.0.0:*:*:*:*:*:*:* *cpe:2.3:a:ibm:security_identity_manager_adapter:7.0.0.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jun. 28, 2021

    Action Type Old Value New Value
    Changed Description IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882. IBM Security Identity Manager Adapters 6.0 and 7.0 are vulnerable to a heap based buffer overflow, caused by improper bounds. An authenticared user could overflow the buffer and cause the service to crash. IBM X-Force ID: 197882.
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-20494 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-20494 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.07 }} 0.00%

score

0.28669

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability