CVE-2023-36849
Summary
| CVE | CVE-2023-36849 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2023-07-14 18:15:00 UTC |
| Updated | 2023-07-27 14:33:00 UTC |
| Description | An Improper Check or Handling of Exceptional Conditions vulnerability in the Layer-2 control protocols daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated adjacent attacker to cause a Denial of Service (DoS). When a malformed LLDP packet is received, l2cpd will crash and restart. The impact of the l2cpd crash is reinitialization of STP protocols (RSTP, MSTP or VSTP), and MVRP and ERP. Also, if any services depend on LLDP state (like PoE or VoIP device recognition), then these will also be affected. Continued receipt of such packets will lead to a sustained Denial of Service. This issue affects: Juniper Networks Junos OS 21.4 versions prior to 21.4R3-S3; 22.1 versions prior to 22.1R3-S3; 22.2 versions prior to 22.2R2-S1, 22.2R3; 22.3 versions prior to 22.3R2. Juniper Networks Junos OS Evolved 21.4-EVO versions prior to 21.4R3-S2-EVO; 22.1-EVO versions prior to 22.1R3-S3-EVO; 22.2-EVO versions prior to 22.2R2-S1-EVO, 22.2R3-EVO; 22.3-EVO versions prior to 22.3R2-EVO. |
Risk And Classification
Problem Types: CWE-703
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Juniper | Junos | 21.4 | - | All | All |
| Operating System | Juniper | Junos | 21.4 | r1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 21.4 | r2 | All | All |
| Operating System | Juniper | Junos | 21.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 21.4 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 22.1 | r1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 22.1 | r2 | All | All |
| Operating System | Juniper | Junos | 22.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r2-s2 | All | All |
| Operating System | Juniper | Junos | 22.1 | r3 | All | All |
| Operating System | Juniper | Junos | 22.1 | r3-s1 | All | All |
| Operating System | Juniper | Junos | 22.1 | r3-s2 | All | All |
| Operating System | Juniper | Junos | 22.2 | r1 | All | All |
| Operating System | Juniper | Junos | 22.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 22.2 | r1-s2 | All | All |
| Operating System | Juniper | Junos | 22.2 | r2 | All | All |
| Operating System | Juniper | Junos | 22.3 | r1 | All | All |
| Operating System | Juniper | Junos | 22.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos | 22.3 | r1-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | - | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r1-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r2-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r2-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r3 | All | All |
| Operating System | Juniper | Junos Os Evolved | 21.4 | r3-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r1-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r2-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r3 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r3-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.1 | r3-s2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.2 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.2 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.2 | r2 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.3 | r1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.3 | r1-s1 | All | All |
| Operating System | Juniper | Junos Os Evolved | 22.3 | r1-s2 | All | All |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| CEC Juniper Community | MISC | supportportal.juniper.net | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.