Metrics
No CVSS v4.0
Attack Vector Network
Attack Complexity Low
Privileges Required None
Scope Unchanged
Confidentiality Impact None
Integrity Impact None
Availability Impact High
User Interaction None
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
The EPSS score is 0.00437.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
| Vendors | Products |
|---|---|
| Juniper |
|
Configuration 1 [-]
|
No data.
No data.
| Source | ID | Title |
|---|---|---|
EUVD |
EUVD-2021-2903 | A buffer overflow vulnerability in the TCP/IP stack of Juniper Networks Junos OS allows an attacker to send specific sequences of packets to the device thereby causing a Denial of Service (DoS). By repeatedly sending these sequences of packets to the device, an attacker can sustain the Denial of Service (DoS) condition. The device will abnormally shut down as a result of these sent packets. A potential indicator of compromise will be the following message in the log files: "eventd[13955]: SYSTEM_ABNORMAL_SHUTDOWN: System abnormally shut down" This issue is only triggered by traffic destined to the device. Transit traffic will not trigger this issue. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S19; 15.1 versions prior to 15.1R7-S10; 17.3 versions prior to 17.3R3-S12; 18.4 versions prior to 18.4R2-S9, 18.4R3-S9; 19.1 versions prior to 19.1R3-S7; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S7, 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R2; 21.2 versions prior to 21.2R1-S1, 21.2R2. |
Solution
The following software releases have been updated to resolve this specific issue: 12.3R12-S19, 15.1R7-S10, 17.3R3-S12, 18.4R2-S9, 18.4R3-S9, 19.1R3-S7, 19.2R1-S7, 19.2R3-S3, 19.3R2-S7, 19.3R3-S3, 19.4R3-S5, 20.1R3-S1, 20.2R3-S2, 20.3R3-S1, 20.4R2-S2, 20.4R3, 21.1R2, 21.2R1-S1, 21.2R2, 21.3R1, and all subsequent releases.
Workaround
There are no available workarounds for this issue. To reduce the risk of exploitation of this issue, use access lists or firewall filters to limit access to the device to only trusted administrative networks, hosts and users.
| Link | Providers |
|---|---|
| https://kb.juniper.net/JSA11200 |
|
No history.
Status: PUBLISHED
Assigner: juniper
Published:
Updated: 2024-09-16T21:03:01.865Z
Reserved: 2020-10-27T00:00:00
Link: CVE-2021-0284
No data.
Status : Modified
Published: 2021-08-17T23:15:07.403
Modified: 2024-11-21T05:42:24.050
Link: CVE-2021-0284
No data.
OpenCVE Enrichment
No data.
EUVD