Vulnerability Details : CVE-2021-20515
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.
Vulnerability category: OverflowMemory CorruptionExecute codeDenial of service
Products affected by CVE-2021-20515
- cpe:2.3:a:ibm:informix_dynamic_server:14.10:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-20515
0.04%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 6 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-20515
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.6
|
MEDIUM | AV:L/AC:L/Au:N/C:P/I:P/A:P |
3.9
|
6.4
|
NIST | |
|
6.7
|
MEDIUM | CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
IBM Corporation | |
|
6.7
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H |
0.8
|
5.9
|
NIST |
CWE ids for CVE-2021-20515
-
The product writes data past the end, or before the beginning, of the intended buffer.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-20515
-
https://www.ibm.com/support/pages/node/6448568
Security Bulletin: IBM Informix Dynamic Server is vulnerable to a stack based buffer overflow, caused by improper bounds checking.Patch;Vendor Advisory
-
https://exchange.xforce.ibmcloud.com/vulnerabilities/198366
IBM Informix Dynamic Server buffer overflow CVE-2021-20515 Vulnerability ReportVDB Entry;Vendor Advisory
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