ID
VAR-202104-0543
CVE
CVE-2021-0254
TITLE
Juniper Networks Junos OS Buffer error vulnerability
Trust: 0.6
DESCRIPTION
A buffer size validation vulnerability in the overlayd service of Juniper Networks Junos OS may allow an unauthenticated remote attacker to send specially crafted packets to the device, triggering a partial Denial of Service (DoS) condition, or leading to remote code execution (RCE). Continued receipt and processing of these packets will sustain the partial DoS. The overlayd daemon handles Overlay OAM packets, such as ping and traceroute, sent to the overlay. The service runs as root by default and listens for UDP connections on port 4789. This issue results from improper buffer size validation, which can lead to a buffer overflow. Unauthenticated attackers can send specially crafted packets to trigger this vulnerability, resulting in possible remote code execution. overlayd runs by default in MX Series, ACX Series, and QFX Series platforms. The SRX Series does not support VXLAN and is therefore not vulnerable to this issue. Other platforms are also vulnerable if a Virtual Extensible LAN (VXLAN) overlay network is configured. This issue affects Juniper Networks Junos OS: 15.1 versions prior to 15.1R7-S9; 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R2-S13, 17.4R3-S4; 18.1 versions prior to 18.1R3-S12; 18.2 versions prior to 18.2R2-S8, 18.2R3-S7; 18.3 versions prior to 18.3R3-S4; 18.4 versions prior to 18.4R1-S8, 18.4R2-S7, 18.4R3-S7; 19.1 versions prior to 19.1R2-S2, 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2-S1, 20.1R3; 20.2 versions prior to 20.2R2, 20.2R2-S1, 20.2R3; 20.3 versions prior to 20.3R1-S1. Juniper Networks Junos OS is a set of network operating system of Juniper Networks (Juniper Networks) dedicated to the company's hardware equipment. The operating system provides a secure programming interface and Junos SDK. There is a security vulnerability in Junos OS, and there is no relevant information about this vulnerability at present, please pay attention to CNNVD or manufacturer announcements at any time
Trust: 1.08
AFFECTED PRODUCTS
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.2 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 20.1 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.2 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 20.3 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 20.2 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.3 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.4 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.3 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 17.3 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.1 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 19.4 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 17.4 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 18.1 | Trust: 1.0 |
| vendor: | juniper | model: | junos | scope: | eq | version: | 15.1 | Trust: 1.0 |
CVSS
SEVERITY | CVSSV2 | CVSSV3 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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PROBLEMTYPE DATA
| problemtype: | CWE-787 | Trust: 1.1 |
| problemtype: | CWE-131 | Trust: 1.0 |
THREAT TYPE
remote
Trust: 0.6
TYPE
buffer error
Trust: 0.6
PATCH
| title: | Juniper Networks Junos OS Security vulnerabilities | url: | http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=148046 | Trust: 0.6 |
EXTERNAL IDS
| db: | NVD | id: | CVE-2021-0254 | Trust: 1.8 |
| db: | JUNIPER | id: | JSA11147 | Trust: 1.8 |
| db: | AUSCERT | id: | ESB-2021.1328 | Trust: 0.6 |
| db: | CNNVD | id: | CNNVD-202104-1027 | Trust: 0.6 |
| db: | VULHUB | id: | VHN-372156 | Trust: 0.1 |
| db: | VULMON | id: | CVE-2021-0254 | Trust: 0.1 |
REFERENCES
| url: | https://kb.juniper.net/jsa11147 | Trust: 1.8 |
| url: | https://vigilance.fr/vulnerability/junos-os-multiple-vulnerabilities-35081 | Trust: 0.6 |
| url: | https://nvd.nist.gov/vuln/detail/cve-2021-0254 | Trust: 0.6 |
| url: | https://www.auscert.org.au/bulletins/esb-2021.1328 | Trust: 0.6 |
| url: | https://cwe.mitre.org/data/definitions/131.html | Trust: 0.1 |
| url: | https://nvd.nist.gov | Trust: 0.1 |
| url: | https://kb.juniper.net/infocenter/index?page=content&id=jsa11147 | Trust: 0.1 |
SOURCES
| db: | VULHUB | id: | VHN-372156 |
| db: | VULMON | id: | CVE-2021-0254 |
| db: | CNNVD | id: | CNNVD-202104-1027 |
| db: | NVD | id: | CVE-2021-0254 |
LAST UPDATE DATE
2024-11-23T22:16:06.186000+00:00
SOURCES UPDATE DATE
| db: | VULHUB | id: | VHN-372156 | date: | 2022-08-05T00:00:00 |
| db: | VULMON | id: | CVE-2021-0254 | date: | 2021-04-27T00:00:00 |
| db: | CNNVD | id: | CNNVD-202104-1027 | date: | 2022-08-10T00:00:00 |
| db: | NVD | id: | CVE-2021-0254 | date: | 2024-11-21T05:42:19.537 |
SOURCES RELEASE DATE
| db: | VULHUB | id: | VHN-372156 | date: | 2021-04-22T00:00:00 |
| db: | VULMON | id: | CVE-2021-0254 | date: | 2021-04-22T00:00:00 |
| db: | CNNVD | id: | CNNVD-202104-1027 | date: | 2021-04-14T00:00:00 |
| db: | NVD | id: | CVE-2021-0254 | date: | 2021-04-22T20:15:09.460 |