IBM i update for ISC BIND
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2022-2795 CVE-2022-38177 CVE-2022-38178 |
| CWE-ID | CWE-399 CWE-401 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
IBM i Operating systems & Components / Operating system |
| Vendor | IBM Corporation |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Resource management error
EUVDB-ID: #VU67545
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-2795
CWE-ID:
CWE-399 - Resource Management Errors
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to improper management of internal resources within the application when processing large delegations. A remote attacker can flood the target resolver with queries and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM i: 7.2 - 7.5
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-isc-bind-on-ibm-i-is-vulnerable-to-denial-of-service-due-to-memory-leaks-and-a-flaw-in-resolver-code-cve-2022-2795-cve-2022-38177-cve-2022-38178/
http://www.ibm.com/support/pages/node/6841885
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) Memory leak
EUVDB-ID: #VU67549
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-38177
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in the DNSSEC verification code for the ECDSA algorithm. A remote attacker can spoof the target resolver with responses that have a malformed ECDSA signature and perform denial of service attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM i: 7.2 - 7.5
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-isc-bind-on-ibm-i-is-vulnerable-to-denial-of-service-due-to-memory-leaks-and-a-flaw-in-resolver-code-cve-2022-2795-cve-2022-38177-cve-2022-38178/
http://www.ibm.com/support/pages/node/6841885
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.
3) Memory leak
EUVDB-ID: #VU67550
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2022-38178
CWE-ID:
CWE-401 - Missing release of memory after effective lifetime
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak in the DNSSEC verification code for the EdDSA algorithm. A remote attacker can spoof the target resolver with responses that have a malformed EdDSA signature and perform denial of service attack.
MitigationInstall update from vendor's website.
Vulnerable software versionsIBM i: 7.2 - 7.5
External linkshttp://www.ibm.com/blogs/psirt/security-bulletin-isc-bind-on-ibm-i-is-vulnerable-to-denial-of-service-due-to-memory-leaks-and-a-flaw-in-resolver-code-cve-2022-2795-cve-2022-38177-cve-2022-38178/
http://www.ibm.com/support/pages/node/6841885
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.
