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.
Metrics
Affected Vendors & Products
References
Link | Providers |
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https://supportportal.juniper.net/JSA88121 |
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History
Fri, 11 Oct 2024 21:15:00 +0000
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ssvc
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Fri, 11 Oct 2024 15:45:00 +0000
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Description | 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. | |
Title | Junos OS: Due to a race condition AgentD process causes a memory corruption and FPC reset | |
Weaknesses | CWE-367 | |
References |
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Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2024-10-11T17:48:37.447Z
Reserved: 2024-09-25T15:26:52.608Z
Link: CVE-2024-47494

Updated: 2024-10-11T17:48:33.684Z

Status : Awaiting Analysis
Published: 2024-10-11T16:15:09.580
Modified: 2024-10-15T12:58:51.050
Link: CVE-2024-47494

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