CVE-2021-0259
Juniper Networks Junos OS and Junos OS Evolved QFX5K Series VXLAN Denial of Service
Description
Due to a vulnerability in DDoS protection in Juniper Networks Junos OS and Junos OS Evolved on QFX5K Series switches in a VXLAN configuration, instability might be experienced in the underlay network as a consequence of exceeding the default ddos-protection aggregate threshold. If an attacker on a client device on the overlay network sends a high volume of specific, legitimate traffic in the overlay network, due to an improperly detected DDoS violation, the leaf might not process certain L2 traffic, sent by spines in the underlay network. Continued receipt and processing of the high volume traffic will sustain the Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on QFX5K Series: 17.3 versions prior to 17.3R3-S11; 17.4 versions prior to 17.4R3-S5; 18.1 versions prior to 18.1R3-S13; 18.2 versions prior to 18.2R2-S8, 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R1-S8, 18.4R2-S6, 18.4R3-S6; 19.1 versions prior to 19.1R3-S4; 19.2 versions prior to 19.2R1-S6, 19.2R3-S2; 19.3 versions prior to 19.3R3-S2; 19.4 versions prior to 19.4R2-S4, 19.4R3-S1; 20.1 versions prior to 20.1R2; 20.2 versions prior to 20.2R2; 20.3 versions prior to 20.3R1-S2, 20.3R2. Juniper Networks Junos OS Evolved on QFX5220: All versions prior to 20.3R2-EVO.
INFO
Published Date :
April 22, 2021, 8:15 p.m.
Last Modified :
Nov. 21, 2024, 5:42 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
4.0
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-0259
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-0259.
| URL | Resource |
|---|---|
| https://kb.juniper.net/JSA11150 | Vendor Advisory |
| https://kb.juniper.net/JSA11150 | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-0259 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-0259 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://kb.juniper.net/JSA11150 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
May. 04, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:P) Changed Reference Type https://kb.juniper.net/JSA11150 No Types Assigned https://kb.juniper.net/JSA11150 Vendor Advisory Added CWE NIST CWE-755 Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:17.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3:-:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.3:r3-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r2-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:17.4:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.1:r3-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1:-:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r2-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.2:r3-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.3:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r1-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:18.4:r3-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.1:r3-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r1-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.2:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r2-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.3:r3-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:19.4:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.1:r1-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.2:r1-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:20.3:r1-s1:*:*:*:*:*:* OR cpe:2.3:h:juniper:qfx5100:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5110:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5120:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5130:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5210:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos_os_evolved:18.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:19.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:19.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:19.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:19.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:19.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:19.3:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:20.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:20.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:20.2:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:20.2:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos_os_evolved:20.3:r1:*:*:*:*:*:* OR cpe:2.3:h:juniper:qfx5220:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-0259 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-0259
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.00%
score
0.27147
percentile