Rpcbind: unbounded memory allocation in rpcbind statistics tracking allows unauthenticated remote denial of service
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | affected |
|
||||||
| Red Hat | Red Hat Enterprise Linux 8 | affected |
|
||||||
| Red Hat | Red Hat Enterprise Linux 9 | affected |
|
||||||
| Red Hat | Red Hat OpenShift Container Platform 4.22 | affected |
|
||||||
| Red Hat | Red Hat Enterprise Linux 6 | affected | — | ||||||
| Red Hat | Red Hat Enterprise Linux 7 | affected | — | ||||||
| Red Hat | Red Hat OpenShift Container Platform 4 | affected | — | ||||||
| Red Hat | Red Hat OpenShift Container Platform 5 | affected | — |
No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Redhat | Enterprise Linux |
|
||||||||
| Redhat | Openshift Container Platform |
|
Vendor Workaround
Restrict network access to the `rpcbind` service on port 111 to trusted systems. This can be achieved by configuring firewall rules to limit inbound connections. For example, using `firewalld` on Red Hat Enterprise Linux: ```bash # To allow access only from a specific trusted network (e.g., 192.168.1.0/24) firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="192.168.1.0/24" port port="111" protocol="tcp" accept' firewall-cmd --permanent --add-rich-rule='rule family="ipv4" source address="192.168.1.0/24" port port="111" protocol="udp" accept' firewall-cmd --reload ``` If `rpcbind` is only required for local services, ensure it is configured to listen only on the loopback interface or is otherwise protected from external network exposure. Applying these firewall rules will take effect immediately upon `firewall-cmd --reload` and may temporarily interrupt existing connections to `rpcbind`.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.640% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat rhel Els
|
|
| CPEs | cpe:/o:redhat:enterprise_linux:7 |
cpe:/o:redhat:rhel_els:6 cpe:/o:redhat:rhel_els:7 |
| Vendors & Products |
Redhat rhel Els
|
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:5 |
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/a:redhat:openshift:4.22::el9 | |
| References |
|
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/o:redhat:enterprise_linux:8 |
cpe:/o:redhat:enterprise_linux:10.2 cpe:/o:redhat:enterprise_linux:8::baseos |
| References |
|
| Type | Values Removed | Values Added |
|---|---|---|
| CPEs | cpe:/o:redhat:enterprise_linux:9::baseos | |
| References |
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Redhat openshift Container Platform
|
|
| Vendors & Products |
Redhat openshift Container Platform
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | A flaw was found in rpcbind. This vulnerability allows a remote, unauthenticated attacker to cause a Denial of Service (DoS) by sending a large number of unique requests. The rpcbind service records previously unseen RPC (Remote Procedure Call) statistics in unbounded in-memory lists, leading to persistent memory growth and increased CPU usage. This can degrade or exhaust service availability. | |
| Title | Rpcbind: unbounded memory allocation in rpcbind statistics tracking allows unauthenticated remote denial of service | |
| First Time appeared |
Redhat
Redhat enterprise Linux Redhat openshift |
|
| Weaknesses | CWE-400 | |
| CPEs | cpe:/a:redhat:openshift:4 cpe:/o:redhat:enterprise_linux:10 cpe:/o:redhat:enterprise_linux:6 cpe:/o:redhat:enterprise_linux:7 cpe:/o:redhat:enterprise_linux:8 cpe:/o:redhat:enterprise_linux:9 |
|
| Vendors & Products |
Redhat
Redhat enterprise Linux Redhat openshift |
|
| References |
| |
| Metrics |
cvssV3_1
|