A Signed to Unsigned Conversion Error vulnerability in the Layer 2 Control Protocol daemon (l2cpd) of Juniper Networks Junos OS and Juniper Networks Junos OS Evolved allows an unauthenticated adjacent attacker sending a specifically malformed LLDP TLV to cause the l2cpd process to crash and restart, causing a Denial of Service (DoS). Continued receipt and processing of this packet will create a sustained Denial of Service (DoS) condition.
When an LLDP telemetry subscription is active, receipt of a specifically malformed LLDP TLV causes the l2cpd process to crash and restart.
This issue affects:
Junos OS:
* All versions before 21.2R3-S9,
* from 21.4 before 21.4R3-S10,
* from 22.2 before 22.2R3-S6,
* from 22.4 before 22.4R3-S6,
* from 23.2 before 23.2R2-S3,
* from 23.4 before 23.4R2-S4,
* from 24.2 before 24.2R2;
Junos OS Evolved:
* All versions before 21.4R3-S10-EVO,
* from 22.2-EVO before 22.2R3-S6-EVO,
* from 22.4-EVO before 22.4R3-S6-EVO,
* from 23.2-EVO before 23.2R2-S3-EVO,
* from 23.4-EVO before 23.4R2-S4-EVO,
* from 24.2-EVO before 24.2R2-EVO.
References
Link | Resource |
---|---|
https://supportportal.juniper.net/JSA96456 |
Configurations
No configuration.
History
11 Apr 2025, 15:40
Type | Values Removed | Values Added |
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Summary |
|
09 Apr 2025, 20:15
Type | Values Removed | Values Added |
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New CVE |
Information
Published : 2025-04-09 20:15
Updated : 2025-04-11 15:40
NVD link : CVE-2025-30646
Mitre link : CVE-2025-30646
CVE.ORG link : CVE-2025-30646
JSON object : View
Products Affected
No product.
CWE
CWE-195
Signed to Unsigned Conversion Error