CVE-2024-39517
published 2024-07-10CVE-2024-39517: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and Junos OS…
PriorityP428medium6.5CVSS 3.1
AVAACLPRNUINSUCNINAH
EPSS
0.25%
15.8th percentile
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).
In an EVPN/VXLAN scenario, when a high amount specific Layer 2 packets are processed by the device, it can cause the Routing Protocol Daemon (rpd) to utilize all CPU resources which causes the device to hang. A manual restart of the rpd is required to restore services.
This issue affects both IPv4 and IPv6 implementations.
This issue affects
Junos OS:
All versions earlier than 21.4R3-S7;
22.1 versions earlier than 22.1R3-S5;
22.2 versions earlier than 22.2R3-S3;
22.3 versions earlier than 22.3R3-S3;
22.4 versions earlier than 22.4R3-S2;
23.2 versions earlier than 23.2R2;
23.4 versions earlier than 23.4R1-S1.
Junos OS Evolved:
All versions earlier than 21.4R3-S7-EVO;
22.1-EVO versions earlier than 22.1R3-S5-EVO;
22.2-EVO versions earlier than 22.2R3-S3-EVO;
22.3-EVO versions earlier than 22.3R3-S3-EVO;
22.4-EVO versions earlier than 22.4R3-S2-EVO;
23.2-EVO versions earlier than 23.2R2-EVO;
23.4-EVO versions earlier than 23.4R1-S1-EVO, 23.4R2-EVO.
Affected
33 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| juniper | junos | < 21.4 | 21.4 |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos | — | — |
| juniper | junos_os | — | — |
| juniper | junos_os_evolved | < 21.4 | 21.4 |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper | junos_os_evolved | — | — |
| juniper_networks | junos_os | < 21.2R3-S8 | 21.2R3-S8 |
| juniper_networks | junos_os | >= 21.4 < 21.4R3-S7 | 21.4R3-S7 |
| juniper_networks | junos_os | >= 22.1 < 22.1R3-S5 | 22.1R3-S5 |
| juniper_networks | junos_os | >= 22.2 < 22.2R3-S3 | 22.2R3-S3 |
| juniper_networks | junos_os | >= 22.3 < 22.3R3-S3 | 22.3R3-S3 |
| juniper_networks | junos_os | >= 22.4 < 22.4R3-S2 | 22.4R3-S2 |
| juniper_networks | junos_os | >= 23.2 < 23.2R2 | 23.2R2 |
| juniper_networks | junos_os | >= 23.4 < 23.4R1-S1 | 23.4R1-S1 |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
nvdv4.07.1HIGHCVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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Juniper
CVE-2024-39517: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and
vendor_juniper·2024-07-10·CVSS 6.5
CVE-2024-39517 [MEDIUM] CWE-754 CVE-2024-39517: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and
CVE-2024-39517: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).
In an EVPN/VXLAN scenario, when a high amount specific Layer 2 packets are processed by the device, it can cause the Routing Protocol Daemon (rpd) to utilize all CPU resources which causes the device to hang. A manual restart of the rpd is required to restore services.
This issue affects both IPv4 and IPv6 implementations.
This issue affects
Junos OS:
All versions earlier than 21.4R3-S7;
22.1 versions earlier than 22.1R3-S5;
22.2 versions earlier than 22.2R3-S3;
22.3 versions earlier than 22.3R3-S3;
22.4 versions earlier than 22.4
GHSA
GHSA-fc5c-g544-fmfp: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and
ghsa_unreviewed·2024-07-11
CVE-2024-39517 [HIGH] CWE-754 GHSA-fc5c-g544-fmfp: An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and
An Improper Check for Unusual or Exceptional Conditions vulnerability in the Layer 2 Address Learning Daemon (l2ald) on Juniper Networks Junos OS and Junos OS Evolved allows an unauthenticated, adjacent attacker to cause Denial of Service (DoS).
In an EVPN/VXLAN scenario, when a high amount specific Layer 2 packets are processed by the device, it can cause the Routing Protocol Daemon (rpd) to utilize all CPU resources which causes the device to hang. A manual restart of the rpd is required to restore services.
This issue affects both IPv4 and IPv6 implementations.
This issue affects
Junos OS:
All versions earlier than 21.4R3-S7;
22.1 versions earlier than 22.1R3-S5;
22.2 versions earlier than 22.2R3-S3;
22.3 versions earlier than 22.3R3-S3;
22.4 versions earlier than 22.4R3-S2;
23.2 vers
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
2024-07-10
Published