CVE-2021-0283 Detail

Awaiting Analysis


This vulnerability is currently awaiting analysis.

Description

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” These issue are only triggered by traffic destined to the device. Transit traffic will not trigger these issues. This issue affects: Juniper Networks Junos OS 12.3 versions prior to 12.3R12-S19; 15.1 versions prior to 15.1R7-S10; 16.1 version 16.1R1 and later versions; 16.2 version 16.2R1 and later versions; 17.1 version 17.1R1 and later versions; 17.2 version 17.2R1 and later versions; 17.3 version 17.3R1 and later versions; 18.1 versions prior to 18.1R3-S13; 18.2 version 18.2R1 and later versions; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior ot 18.4R3-S9; 19.1 versions prior to 19.1R3-S6; 19.2 versions prior to 19.2R3-S3; 19.3 versions prior to 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R3-S5; 20.1 versions prior to 20.1R2-S2, 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2; 21.2 versions prior to 21.2R2.

Severity

CVSS 3.x Severity and Metrics:

CVSS 2.0 Severity and Metrics:

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Weakness Enumeration

CWE-ID CWE Name Source
CWE-120 Buffer Copy without Checking Size of Input (‘Classic Buffer Overflow’) Juniper Networks, Inc.  

Change History

1 change records found show changes

CVE Modified by Juniper Networks, Inc. 7/15/2021 5:15:08 PM

Action Type Old Value New Value
Changed Description Record truncated, showing 500 of 1500 characters.
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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]: S
Record truncated, showing 500 of 1493 characters.
View Entire Change Record

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

Quick Info

CVE Dictionary Entry:
CVE-2021-0283
NVD Published Date:
07/15/2021
NVD Last Modified:
07/15/2021
Source:
Juniper Networks, Inc.