CVE-2021-27861
27.09.2022, 19:15
Layer 2 network filtering capabilities such as IPv6 RA guard can be bypassed using LLC/SNAP headers with invalid length (and optionally VLAN0 headers)Enginsight
| Vendor | Product | Version |
|---|---|---|
| ieee | ieee_802.2 | 𝑥 ≤ 802.2h-1997 |
𝑥
= Vulnerable software versions
Common Weakness Enumeration
- CWE-130 - Improper Handling of Length Parameter InconsistencyThe software parses a formatted message or structure, but it does not handle or incorrectly handles a length field that is inconsistent with the actual length of the associated data.
- CWE-290 - Authentication Bypass by SpoofingThis attack-focused weakness is caused by improperly implemented authentication schemes that are subject to spoofing attacks.
References