CVE-2021-0271
Juniper Networks Junos OS Double Free DoS Vulnerability in SFI Daemon (sfid) Process.
Description
A Double Free vulnerability in the software forwarding interface daemon (sfid) process of Juniper Networks Junos OS allows an adjacently-connected attacker to cause a Denial of Service (DoS) by sending a crafted ARP packet to the device. Continued receipt and processing of the crafted ARP packets will create a sustained Denial of Service (DoS) condition. This issue affects: Juniper Networks Junos OS on EX2200-C Series, EX3200 Series, EX3300 Series, EX4200 Series, EX4500 Series, EX4550 Series, EX6210 Series, EX8208 Series, EX8216 Series. 12.3 versions prior to 12.3R12-S17; 15.1 versions prior to 15.1R7-S8. This issue only affects the listed Marvell-chipset based EX Series devices. No other products or platforms are affected.
INFO
Published Date :
April 22, 2021, 8:15 p.m.
Last Modified :
July 23, 2021, 7:11 p.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
2.8
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-2021-0271.
| URL | Resource |
|---|---|
| https://kb.juniper.net/JSA11162 | 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-2021-0271 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-0271 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 [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
Jul. 23, 2021
Action Type Old Value New Value Removed CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V2 NIST (AV:A/AC:L/Au:N/C:N/I:N/A:P) Removed CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Added CVSS V3.1 NIST AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H -
Initial Analysis by [email protected]
Apr. 28, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://kb.juniper.net/JSA11162 No Types Assigned https://kb.juniper.net/JSA11162 Vendor Advisory Added CWE NIST CWE-415 Added CPE Configuration AND OR *cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r10-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r10-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s11:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s13:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s14:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s15:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s16:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:12.3:r12-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:-:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:a1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f2-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f2-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f2-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f2-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f5-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s10:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s12:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f6-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:f7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r4-s7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r4-s8:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r4-s9:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r5-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r6-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s1:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s2:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s3:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s4:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s5:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s6:*:*:*:*:*:* *cpe:2.3:o:juniper:junos:15.1:r7-s7:*:*:*:*:*:* OR cpe:2.3:h:juniper:ex2200-c:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex3200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex3300:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4200:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4500:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex4550:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex6210:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex8208:-:*:*:*:*:*:*:* cpe:2.3:h:juniper:ex8216:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-0271 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-2021-0271
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.06 }} 0.01%
score
0.22873
percentile