Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-20227 |
CWE-ID | CWE-416 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
Tivoli Composite Application Manager for Transactions Server applications / Other server solutions |
Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU51834
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-20227
CWE-ID:
CWE-416 - Use After Free
Exploit availability: No
DescriptionThe vulnerability allows an attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error when processing SELECT queries in "src/select.c" if a subquery with both a correlated WHERE clause and a "HAVING 0" clause is used and the parent query is an aggregate. A remote attacker can execute a specially crafted query to trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
MitigationInstall update from vendor's website.
Vulnerable software versionsTivoli Composite Application Manager for Transactions: before 7.4.0.2.16
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-addressing-the-sqlite-vulnerability-cve-2021-20227/
http://www.ibm.com/support/pages/node/6474245
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.