Junos OS: SRX Series: Denial of service vulnerability in flowd daemon upon receipt of a specific fragmented packet
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
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| Juniper Networks | Junos OS | affected |
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Configuration 1 [-]
| AND |
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No data.
No data available yet.
Vendor Solution
The following software releases have been updated to resolve this specific issue: 18.3R3-S6, 18.4R3-S10, 19.1R3-S7, 19.2R3-S4, 19.3R3-S4, 19.4R3-S6, 20.1R3-S2, 20.2R3-S3, 20.3R3-S1, 20.4R3, 21.1R2-S1, 21.1R3, 21.2R2, 21.3R1, and all subsequent releases.
Vendor Workaround
An administrator can disable the feature preserve-incoming-fragment-size to avoid this issue: user@host# delete security flow preserve-incoming-fragment-size user@host# commit
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2022-27332 | A vulnerability in Juniper Networks Junos OS on SRX Series, allows a network-based unauthenticated attacker to cause a Denial of Service (DoS) by sending a specific fragmented packet to the device, resulting in a flowd process crash, which is responsible for packet forwarding. Continued receipt and processing of this specific packet will create a sustained DoS condition. This issue only affects SRX Series when 'preserve-incoming-fragment-size' feature is enabled. This issue affects Juniper Networks Junos OS on SRX Series: 18.3 versions prior to 18.3R3-S6; 18.4 versions prior to 18.4R3-S10; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R3-S4; 19.3 versions prior to 19.3R3-S4; 19.4 versions prior to 19.4R3-S6; 20.1 versions prior to 20.1R3-S2; 20.2 versions prior to 20.2R3-S3; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R3; 21.1 versions prior to 21.1R2-S1, 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect Juniper Networks Junos OS prior to 17.3R1. |
No CVSS v4.0
No CVSS v3.0
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.972% probability within 30 days)
Key SSVC decision points have not yet been added.
| Link | Providers |
|---|---|
| https://kb.juniper.net/JSA69493 |
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| Type | Values Removed | Values Added |
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| Title | Junos OS: SRX Series: Denial of service vulnerability in flowd daemon upon receipt of a specific fragmented packet | Junos OS: SRX Series: Denial of service vulnerability in flowd daemon upon receipt of a specific fragmented packet |