Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix lengths
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 Hardened Images | affected |
|
No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Busybox | Busybox |
|
||||||||
| Redhat | Hardened Images |
|
Vendor Workaround
Audit all BusyBox httpd configuration files for syntactically valid CIDR prefix lengths. Implement network-level access controls (iptables/nftables) as the primary enforcement layer rather than relying on application-level ACLs.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.237% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Busybox
Busybox busybox Redhat hardened Images |
|
| Vendors & Products |
Busybox
Busybox busybox Redhat hardened Images |
| Type | Values Removed | Values Added |
|---|---|---|
| References |
| |
| Metrics |
threat_severity
|
threat_severity
|
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | BusyBox httpd IP deny rules with invalid CIDR prefix lengths fail open, leaving a parsed IP with a zeroed mask so the rule matches no clients. | |
| Title | Busybox: busybox: httpd silently fails open when ip deny rules contain invalid cidr prefix lengths | |
| First Time appeared |
Redhat
Redhat hummingbird |
|
| Weaknesses | CWE-636 | |
| CPEs | cpe:/a:redhat:hummingbird:1 | |
| Vendors & Products |
Redhat
Redhat hummingbird |
|
| References |
| |
| Metrics |
cvssV3_1
|