ghsa-37f4-v37x-33qj
Vulnerability from github
An Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD allows an unauthenticated network-based attacker sending crafted TCP traffic to the routing engine (RE) to cause a CPU-based Denial of Service (DoS).
If specially crafted TCP traffic is received by the control plane, or a TCP session terminates unexpectedly, it will cause increased control plane CPU utilization by the rpd-server process.
While not explicitly required, the impact is more severe when RIB sharding is enabled.
Task accounting shows unexpected reads by the RPD Server jobs for shards:
user@junos> show task accounting detail ... read:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 RUNS: 233888\ read:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 RUNS: 233888\
This issue affects:
Junos OS with cRPD:
- All versions before 21.2R3-S8,
- 21.4 before 21.4R3-S7,
- 22.1 before 22.1R3-S6,
- 22.2 before 22.2R3-S4,
- 22.3 before 22.3R3-S3,
- 22.4 before 22.4R3-S2,
- 23.2 before 23.2R2-S2,
- 24.2 before 24.2R2;
Junos OS Evolved with cRPD:
- All versions before 21.4R3-S7-EVO,
- 22.2 before 22.2R3-S4-EVO,
- 22.3 before 22.3R3-S3-EVO,
- 22.4 before 22.4R3-S2-EVO,
- 23.2 before 23.2R2-EVO.
{
"affected": [],
"aliases": [
"CVE-2024-39547"
],
"database_specific": {
"cwe_ids": [
"CWE-755"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-10-11T16:15:07Z",
"severity": "HIGH"
},
"details": "An\u00a0Improper Handling of Exceptional Conditions vulnerability in the rpd-server of Juniper Networks Junos OS and Junos OS Evolved within cRPD allows an unauthenticated network-based attacker sending crafted TCP traffic to the routing engine (RE) to cause a CPU-based Denial of Service (DoS).\n\nIf specially crafted TCP traffic is received by the control plane, or a TCP session terminates unexpectedly, it will cause increased control plane CPU utilization by the rpd-server process.\n\nWhile not explicitly required, the impact is more severe when RIB sharding is enabled.\n\nTask accounting shows unexpected reads by the RPD Server jobs for shards:\n\nuser@junos\u003e show task accounting detail\n...\nread:RPD Server.0.0.0.0+780.192.168.0.78+48886 TOT:00000003.00379787 MAX:00000000.00080516 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49144 TOT:00000004.00007565 MAX:00000000.00080360 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+49694 TOT:00000003.00600584 MAX:00000000.00080463 RUNS: 233888\\\nread:RPD Server.0.0.0.0+780.192.168.0.78+50246 TOT:00000004.00346998 MAX:00000000.00080338 RUNS: 233888\\\n\n\n\nThis issue affects:\n\nJunos OS with cRPD:\u00a0\n\n * All versions before 21.2R3-S8,\u00a0\n * 21.4 before 21.4R3-S7,\u00a0\n * 22.1 before 22.1R3-S6,\u00a0\n * 22.2 before 22.2R3-S4,\u00a0\n * 22.3 before 22.3R3-S3,\u00a0\n * 22.4 before 22.4R3-S2,\u00a0\n * 23.2 before 23.2R2-S2,\u00a0\n * 24.2 before 24.2R2;\u00a0\n\n\nJunos OS Evolved with cRPD:\u00a0\n\n * All versions before 21.4R3-S7-EVO,\u00a0\n * 22.2 before 22.2R3-S4-EVO,\u00a0\n * 22.3 before 22.3R3-S3-EVO,\u00a0\n * 22.4 before 22.4R3-S2-EVO,\u00a0\n * 23.2 before 23.2R2-EVO.",
"id": "GHSA-37f4-v37x-33qj",
"modified": "2024-10-11T18:32:49Z",
"published": "2024-10-11T18:32:49Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39547"
},
{
"type": "WEB",
"url": "https://supportportal.juniper.net/JSA88108"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/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:Y/R:U/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.