8.2

CVE-2024-47494

A Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in the AgentD process of Juniper Networks Junos OS allows an attacker who is already causing impact to established sessions which generates counter changes picked up by the AgentD process during telemetry polling, to move the AgentD process into a state where AgentD attempts to reap an already destroyed sensor. This reaping attempt then leads to memory corruption causing the FPC to crash which is a Denial of Service (DoS).





The FPC will recover automatically without user intervention after the crash.
This issue affects Junos OS: 

  *  All versions before 21.4R3-S9
  *  From 22.2 before 22.2R3-S5,
  *  From 22.3 before 22.3R3-S4,
  *  From 22.4 before 22.4R3-S3,
  *  From 23.2 before 23.2R2-S2,
  *  From 23.4 before 23.4R2.


This issue does not affect Junos OS Evolved.

Verknüpft mit AI von unstrukturierten Daten zu bestehenden CPE der NVD
This information is available to logged-in users.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
VendorJuniper Networks
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Product Junos OS
Default Statusunaffected
Version < 21.4R3-S9
Version 0
Status affected
Version < 22.2R3-S5
Version 22.2
Status affected
Version < 22.3R3-S4
Version 22.3
Status affected
Version < 22.4R3-S3
Version 22.4
Status affected
Version < 23.2R2-S2
Version 23.2
Status affected
Version < 23.4R2
Version 23.4
Status affected
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.11% 0.308
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
sirt@juniper.net 5.9 2.2 3.6
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
sirt@juniper.net 8.2 0 0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/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:A/V:X/RE:L/U:Green
CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

The product checks the state of a resource before using that resource, but the resource's state can change between the check and the use in a way that invalidates the results of the check. This can cause the product to perform invalid actions when the resource is in an unexpected state.