Description (CNA)
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).
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Red Hat / Red Hat Hardened Images | unaffected 39-13.1.hum1 before * |
| Red Hat / Red Hat Enterprise Linux 10 | unknown |
| Red Hat / Red Hat Enterprise Linux 7 | unknown |
| Red Hat / Red Hat Enterprise Linux 8 | unknown |
| Red Hat / Red Hat Enterprise Linux 9 | unknown |
| Red Hat / Red Hat OpenShift Container Platform 4 | unknown |
| Red Hat / Red Hat OpenShift Container Platform 4 | unknown |
CWE
CWE-674
References
- https://access.redhat.com/errata/RHSA-2026:69321
- https://access.redhat.com/security/cve/CVE-2026-6862
- https://bugzilla.redhat.com/show_bug.cgi?id=2459982
ADP enrichment
No English description supplied.
No references supplied.