CVE-2024-21618
Junos OS and Junos OS Evolved: When LLDP is enabled and a malformed LLDP packet is received, l2cpd crashes
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
An Access of Memory Location After End of Buffer vulnerability in the Layer-2 Control Protocols Daemon (l2cpd) of Juniper Networks Junos OS and Junos OS Evolved allows an adjacent, unauthenticated attacker to cause Denial of Service (DoS).
On all Junos OS and Junos OS Evolved platforms, when LLDP is enabled on a specific interface, and a malformed LLDP packet is received, l2cpd crashes and restarts. 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.
This issue affects:
Junos OS:
* from 21.4 before 21.4R3-S4,
* from 22.1 before 22.1R3-S4,
* from 22.2 before 22.2R3-S2,
* from 22.3 before 22.3R2-S2, 22.3R3-S1,
* from 22.4 before 22.4R3,
* from 23.2 before 23.2R2.
Junos OS Evolved:
* from 21.4-EVO before 21.4R3-S5-EVO,
* from 22.1-EVO before 22.1R3-S4-EVO,
* from 22.2-EVO before 22.2R3-S2-EVO,
* from 22.3-EVO before 22.3R2-S2-EVO, 22.3R3-S1-EVO,
* from 22.4-EVO before 22.4R3-EVO,
* from 23.2-EVO before 23.2R2-EVO.
This issue does not affect:
* Junos OS versions prior to 21.4R1;
* Junos OS Evolved versions prior to 21.4R1-EVO.
Una vulnerabilidad de acceso a la ubicación de la memoria después del fin del búfer en el daemon de protocolos de control de capa 2 (l2cpd) de Juniper Networks Junos OS y Junos OS Evolved permite que un atacante adyacente no autenticado provoque una denegación de servicio (DoS). En todas las plataformas Junos OS y Junos OS Evolved, cuando LLDP está habilitado en una interfaz específica y se recibe un paquete LLDP con formato incorrecto, l2cpd falla y se reinicia. El impacto del fallo de l2cpd es la reinicialización de los protocolos STP (RSTP, MSTP o VSTP) y MVRP y ERP. Además, si algún servicio depende del estado de LLDP (como PoE o reconocimiento de dispositivo VoIP), también se verá afectado. Este problema afecta a: Junos OS: * desde 21.4 anterior a 21.4R3-S4, * desde 22.1 anterior a 22.1R3-S4, * desde 22.2 anterior a 22.2R3-S2, * desde 22.3 anterior a 22.3R2-S2, 22.3R3-S1, * desde 22.4 antes de 22.4R3, * de 23.2 antes de 23.2R2. Junos OS Evolved: * desde 21.4-EVO antes de 21.4R3-S5-EVO, * desde 22.1-EVO antes de 22.1R3-S4-EVO, * desde 22.2-EVO antes de 22.2R3-S2-EVO, * desde 22.3-EVO antes de 22.3 R2-S2-EVO, 22.3R3-S1-EVO, *de 22.4-EVO antes de 22.4R3-EVO, *de 23.2-EVO antes de 23.2R2-EVO. Este problema no afecta: * Versiones de Junos OS anteriores a 21.4R1; * Versiones de Junos OS Evolved anteriores a 21.4R1-EVO.
CVSS Scores
SSVC
- Decision:Track
Timeline
- 2023-12-27 CVE Reserved
- 2024-04-12 CVE Published
- 2024-04-21 EPSS Updated
- 2024-08-01 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-788: Access of Memory Location After End of Buffer
CAPEC
References (2)
| URL | Tag | Source |
|---|---|---|
| https://www.first.org/cvss/calculator/4.0#CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L | Technical Description |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://supportportal.juniper.net/JSA75759 | 2024-05-16 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 21.4 < 21.4R3-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 21.4 < 21.4R3-S4" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.1 < 22.1R3-S4 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.1 < 22.1R3-S4" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.2 < 22.2R3-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.2 < 22.2R3-S2" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.3 < 22.3R2-S2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R2-S2" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.3 < 22.3R3-S1 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.3 < 22.3R3-S1" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 22.4 < 22.4R3 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 22.4 < 22.4R3" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Search vendor "Juniper Networks" for product "Junos OS" | >= 23.2 < 23.2R2 Search vendor "Juniper Networks" for product "Junos OS" and version " >= 23.2 < 23.2R2" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 21.4-EVO < 21.4R3-S5-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 21.4-EVO < 21.4R3-S5-EVO" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 22.1-EVO < 22.1R3-S4-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.1-EVO < 22.1R3-S4-EVO" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 22.2-EVO < 22.2R3-S2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.2-EVO < 22.2R3-S2-EVO" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 22.3-EVO < 22.3R2-S2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.3-EVO < 22.3R2-S2-EVO" | en |
Affected
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| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 22.3-EVO < 22.3R3-S1-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.3-EVO < 22.3R3-S1-EVO" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 22.4-EVO < 22.4R3-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 22.4-EVO < 22.4R3-EVO" | en |
Affected
| ||||||
| Juniper Networks Search vendor "Juniper Networks" | Junos OS Evolved Search vendor "Juniper Networks" for product "Junos OS Evolved" | >= 23.2-EVO < 23.2R2-EVO Search vendor "Juniper Networks" for product "Junos OS Evolved" and version " >= 23.2-EVO < 23.2R2-EVO" | en |
Affected
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