Red Hat OpenStack Platform 16 update for etcd
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 2 |
| CVE-ID | CVE-2021-28235 CVE-2022-41723 |
| CWE-ID | CWE-285 CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
Red Hat OpenStack for IBM Power Server applications / Other server solutions Red Hat OpenStack Server applications / Other server solutions etcd (Red Hat package) Operating systems & Components / Operating system package or component |
| Vendor | Red Hat Inc. |
Security Bulletin
This security bulletin contains information about 2 vulnerabilities.
1) Improper Authorization
EUVDB-ID: #VU75512
Risk: High
CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]
CVE-ID: CVE-2021-28235
CWE-ID:
CWE-285 - Improper Authorization
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the system.
The vulnerability exists due to missing authorization to the "/debug" feature. A remote non-authenticated attacker can access the "/debug/requests" endpoint and gain unauthorized access to the application.
Install updates from vendor's website.
Red Hat OpenStack for IBM Power: 16.1
Red Hat OpenStack: 16.1
etcd (Red Hat package): before 3.3.23-14.el8ost
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:16.1:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:16.1:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:etcd_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2023:3447
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) Resource exhaustion
EUVDB-ID: #VU72686
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2022-41723
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources in the HPACK decoder. A remote attacker can send a specially crafted HTTP/2 stream to the application, cause resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Red Hat OpenStack for IBM Power: 16.1
Red Hat OpenStack: 16.1
etcd (Red Hat package): before 3.3.23-14.el8ost
CPE2.3- cpe:2.3:a:red_hat:red_hat_openstack_for_ibm_power:16.1:*:*:*:*:*:*:*
- cpe:2.3:a:red_hat:red_hat_openstack:16.1:*:*:*:*:*:*:*
- cpe:2.3:o:red_hat:etcd_redhat_package:*:*:*:*:*:red_hat_enterprise_linux:*:*
https://access.redhat.com/errata/RHSA-2023:3447
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.
