Multiple vulnerabilities in Oracle Communications Network Charging and Control

Published: 2021-07-21 | Updated: 2022-04-21

Risk	Medium
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2021-20227 CVE-2020-25649
CWE-ID	CWE-416 CWE-611
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Oracle Communications Network Charging and Control Other software / Other software solutions
Vendor	Oracle

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Use-after-free

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

Description

The 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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Oracle Communications Network Charging and Control: 6.0.1.0 - 12.0.4

External links

http://www.oracle.com/security-alerts/cpujul2021.html?3209

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.

2) XML External Entity injection

EUVDB-ID: #VU48979

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-25649

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')