A flaw was found in libefiboot, a component of efivar. The device path node parser in libefiboot fails to validate that each node's Length field is at least 4 bytes, which is the minimum size for an EFI (Extensible Firmware Interface) device path node header. A local user could exploit this vulnerability by providing a specially crafted device path node. This can lead to infinite recursion, causing stack exhaustion and a process crash, resulting in a denial of service (DoS).
Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.
| Vendor | Product | Versions | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | |
| Red Hat | Red Hat Enterprise Linux 7 | — | |
| Red Hat | Red Hat Enterprise Linux 8 | — | |
| Red Hat | Red Hat Enterprise Linux 9 | — | |
| Red Hat | Red Hat Hardened Images | all versions | |
| Red Hat | Red Hat OpenShift Container Platform 4 | — | |
| ubuntu | libefiboot | — |
cpe:2.3:a:ubuntu:libefiboot:-:*:*:*:*:*:*:*Our free, open-source honeypot sensor waits on ports your server does not use and reports the scanners and attackers that connect to a shared blocklist.