Executive Summary
Informations | |||
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Name | CVE-2021-0270 | First vendor Publication | 2021-04-22 |
Vendor | Cve | Last vendor Modification | 2021-04-28 |
Security-Database Scoring CVSS v3
Cvss vector : CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H | |||
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Overall CVSS Score | 5.9 | ||
Base Score | 5.9 | Environmental Score | 5.9 |
impact SubScore | 3.6 | Temporal Score | 5.9 |
Exploitabality Sub Score | 2.2 | ||
Attack Vector | Network | Attack Complexity | High |
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:M/Au:N/C:N/I:N/A:P) | |||
---|---|---|---|
Cvss Base Score | 4.3 | Attack Range | Network |
Cvss Impact Score | 2.9 | Attack Complexity | Medium |
Cvss Expoit Score | 8.6 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
On PTX Series and QFX10k Series devices with the "inline-jflow" feature enabled, a use after free weakness in the Packet Forwarding Engine (PFE) microkernel architecture of Juniper Networks Junos OS may allow an attacker to cause a Denial of Service (DoS) condition whereby one or more Flexible PIC Concentrators (FPCs) may restart. As this is a race condition situation this issue become more likely to be hit when network instability occurs, such as but not limited to BGP/IGP reconvergences, and/or further likely to occur when more active "traffic flows" are occurring through the device. When this issue occurs, it will cause one or more FPCs to restart unexpectedly. During FPC restarts core files will be generated. While the core file is generated traffic will be disrupted. Sustained receipt of large traffic flows and reconvergence-like situations may sustain the Denial of Service (DoS) situation. This issue affects: Juniper Networks Junos OS: 18.1 version 18.1R2 and later versions prior to 18.1R3-S10 on PTX Series, QFX10K Series. |
Original Source
Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-0270 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
50 % | CWE-416 | Use After Free |
50 % | CWE-362 | Race Condition |
CPE : Common Platform Enumeration
Sources (Detail)
Source | Url |
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MISC | https://kb.juniper.net/JSA11161 https://www.juniper.net/documentation/en_US/junos/topics/task/configuration/i... |
Alert History
Date | Informations |
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2021-04-29 00:22:49 |
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2021-04-23 01:10:34 |
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2021-04-23 01:10:29 |
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