Executive Summary
Informations | |||
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Name | CVE-2021-31368 | First vendor Publication | 2021-10-19 |
Vendor | Cve | Last vendor Modification | 2021-10-26 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | |||
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Overall CVSS Score | 7.5 | ||
Base Score | 7.5 | Environmental Score | 7.5 |
impact SubScore | 3.6 | Temporal Score | 7.5 |
Exploitabality Sub Score | 3.9 | ||
Attack Vector | Network | Attack Complexity | Low |
Privileges Required | None | User Interaction | None |
Scope | Unchanged | Confidentiality Impact | None |
Integrity Impact | None | Availability Impact | High |
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:C) | |||
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Cvss Base Score | 7.8 | Attack Range | Network |
Cvss Impact Score | 6.9 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
An Uncontrolled Resource Consumption vulnerability in the kernel of Juniper Networks JUNOS OS allows an unauthenticated network based attacker to cause 100% CPU load and the device to become unresponsive by sending a flood of traffic to the out-of-band management ethernet port. Continued receipted of a flood will create a sustained Denial of Service (DoS) condition. Once the flood subsides the system will recover by itself. An indication that the system is affected by this issue would be that kernel and netisr process are shown to be using a lot of CPU cycles like in the following example output: user@host> show system processes extensive ... PID USERNAME PRI NICE SIZE RES STATE C TIME WCPU COMMAND 16 root -72 - 0K 304K WAIT 1 839:40 88.96% intr{swi1: netisr 0} 0 root 97 - 0K 160K RUN 1 732:43 87.99% kernel{bcm560xgmac0 que} This issue affects Juniper Networks JUNOS OS on EX2300 Series, EX3400 Series, and ACX710: All versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R2-S8, 18.4R3-S9; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R1-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3; 20.3 versions prior to 20.3R2-S1, 20.3R3; 20.4 versions prior to 20.4R2. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31368 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
100 % | CWE-400 | Uncontrolled Resource Consumption ('Resource Exhaustion') |
CPE : Common Platform Enumeration
Sources (Detail)
Source | Url |
---|---|
CONFIRM | https://kb.juniper.net/JSA11230 |
Alert History
Date | Informations |
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2024-02-02 02:25:19 |
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2024-02-01 12:23:52 |
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2023-09-05 13:19:37 |
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2023-09-05 01:23:24 |
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2023-09-02 13:18:14 |
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2023-09-02 01:23:45 |
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2023-08-12 13:24:19 |
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2023-08-12 01:22:59 |
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2023-08-11 13:16:37 |
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2023-08-11 01:23:45 |
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2023-08-06 13:14:37 |
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2023-08-06 01:22:44 |
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2023-08-04 13:14:59 |
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2023-08-04 01:23:05 |
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2023-07-28 02:05:37 |
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2023-07-14 13:15:02 |
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2023-07-14 01:22:53 |
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2023-03-29 02:17:13 |
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2023-03-28 12:23:07 |
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2022-10-11 13:07:00 |
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2022-10-11 01:22:36 |
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2022-08-25 02:00:17 |
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2022-07-31 02:01:37 |
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2022-04-22 01:56:29 |
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2022-01-27 01:49:14 |
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2021-10-27 17:22:59 |
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2021-10-26 21:22:56 |
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2021-10-20 00:22:50 |
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