A buffer overflow vulnerability in the TCP/IP stack of Juniper Networks Junos OS allows an malicious user 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 before 12.3R12-S19; 15.1 versions before 15.1R7-S10; 17.3 versions before 17.3R3-S12; 18.4 versions before 18.4R2-S9, 18.4R3-S9; 19.1 versions before 19.1R3-S7; 19.2 versions before 19.2R1-S7, 19.2R3-S3; 19.3 versions before 19.3R2-S7, 19.3R3-S3; 19.4 versions before 19.4R3-S5; 20.1 versions before 20.1R3-S1; 20.2 versions before 20.2R3-S2; 20.3 versions before 20.3R3-S1; 20.4 versions before 20.4R2-S2, 20.4R3; 21.1 versions before 21.1R2; 21.2 versions before 21.2R1-S1, 21.2R2.
Vulnerable Product | Search on Vulmon | Subscribe to Product |
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juniper junos 15.1 |
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juniper junos 12.3 |
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juniper junos 17.3 |
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juniper junos 18.4 |
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juniper junos 19.2 |
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juniper junos 19.3 |
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juniper junos 19.4 |
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juniper junos 20.1 |
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juniper junos 20.2 |
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juniper junos 20.3 |
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juniper junos 20.4 |
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juniper junos 21.1 |
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juniper junos 21.2 |