CVE-2021-0262 Details

CVE-2021-0262

Published: 2021-04-22
Last Modified: 2021-05-04
CVE Author: NIST National Vulnerability Database
CVE Assigner: sirt@juniper.net
Summary

Through routine static code analysis of the Juniper Networks Junos OS software codebase, the Secure Development Life Cycle team identified a Use After Free vulnerability in PFE packet processing on the QFX10002-60C switching platform. Exploitation of this vulnerability may allow a logically adjacent attacker to trigger a Denial of Service (DoS). Continued exploitation of this vulnerability will sustain the Denial of Service (DoS) condition. This issue only affects QFX10002-60C devices. No other product or platform is vulnerable to this issue. This issue affects Juniper Networks Junos OS on QFX10002-60C: 19.1 version 19.1R3-S1 and later versions; 19.1 versions prior to 19.1R3-S3; 19.2 version 19.2R2 and later versions; 19.2 versions prior to 19.2R3-S1; 20.2 versions prior to 20.2R1-S2. This issue does not affect Juniper Networks Junos OS: versions prior to 19.1R3; 19.2 versions prior to 19.2R2; any version of 19.3; version 20.2R2 and later releases.

Analysis
Common Vulnerability Score System v2.0
Severity Low
Base Score 3.3/10
Exploit Score 6.5/10
Access Vector Adjacent_network
Access Complexity Low
Authentication None
Impact Score 2.9/10
Confidentiality Impact None
Availability Impact Partial
Integrity Impact None
Vector String AV:A/AC:L/Au:N/C:N/I:N/A:P
Common Vulnerability Score System v3.1
Severity Medium
Base Score 6.5/10
Exploit Score 2.8/10
Access Vector Adjacent_network
Access Complexity Low
Privileges Required None
Impact Score 3.6/10
Confidentiality Impact None
Availability Impact High
Integrity Impact None
Scope Unchanged
User Interaction None
Vector String CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Products Reported
CPE Vulnerable Start Excluding
cpe:2.3:o:juniper:junos:19.1:r3-s1:*:*:*:*:*:* Yes - -
cpe:2.3:o:juniper:junos:19.1:r3-s2:*:*:*:*:*:* Yes - -
cpe:2.3:o:juniper:junos:19.2:r2:*:*:*:*:*:* Yes - -
cpe:2.3:o:juniper:junos:19.2:r2-s1:*:*:*:*:*:* Yes - -
cpe:2.3:o:juniper:junos:19.2:r3:*:*:*:*:*:* Yes - -
cpe:2.3:o:juniper:junos:20.2:r1:*:*:*:*:*:* Yes - -
cpe:2.3:o:juniper:junos:20.2:r1-s1:*:*:*:*:*:* Yes - -
References

https://kb.juniper.net/JSA11153

CVE ID
CVE-2021-0262
Published
2021-04-22
Modified
2021-05-04
CVSSv2.0
Low
CVSSv3.1
Medium
PCI Compliance
Pass
US-CERT Alert
No
CWE
CWE-416

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