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"value": "Exploitation of this issue requires DS-Lite tunneling to be configured on the SRX Series device:
[ security softwires softwire-name <name> softwire-concentrator ...]"
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"value": "A NULL Pointer Dereference vulnerability in the flow daemon (flowd) of Juniper Networks Junos OS on SRX Series allows an attacker causing specific, valid control traffic to be sent out of a Dual-Stack (DS) Lite tunnel to crash the flowd process, resulting in a Denial of Service (DoS). Continuous triggering of specific control traffic will create a sustained Denial of Service (DoS) condition.
On all SRX platforms, when specific, valid control traffic needs to be sent out of a DS-Lite tunnel, a segmentation fault occurs within the flowd process, resulting in a network outage until the flowd process restarts.
This issue affects Junos OS on SRX Series:
- All versions before 21.2R3-S9,
- from 21.4 before 21.4R3-S9,
- from 22.2 before 22.2R3-S5,
- from 22.4 before 22.4R3-S6,
- from 23.2 before 23.2R2-S3,
- from 23.4 before 23.4R2.
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"url": "https://supportportal.juniper.net/JSA96455"
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"value": "The following software releases have been updated to resolve this specific issue: Junos OS 21.2R3-S9, 21.4R3-S9, 22.2R3-S5, 22.4R3-S6, 23.2R2-S3, 23.4R2, 24.2R1, and all subsequent releases."
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"value": "Initial Publication"
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{
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"time": "2025-04-24T16:00:00.000Z",
"value": "Corrected configuration example for SRX Series"
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"title": "Junos OS: SRX Series: Transmission of specific control traffic sent out of a DS-Lite tunnel results in flowd crash",
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