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    CVE-2021-0271

    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.

    Published:Apr 22, 2021
    Last Modified:Nov 21, 2024
    EPS:Apr 22, 2021
    EPSS Score:0.00081
    CVSS Score:6.5

    Affected Products

    Vendor
    Juniper
    Product
    Ex2200-c
    Vendor
    Juniper
    Product
    Ex3200
    Vendor
    Juniper
    Product
    Ex3300
    Vendor
    Juniper
    Product
    Ex4200
    Vendor
    Juniper
    Product
    Ex4500
    Vendor
    Juniper
    Product
    Ex4550
    Vendor
    Juniper
    Product
    Ex6210
    Vendor
    Juniper
    Product
    Ex8208
    Vendor
    Juniper
    Product
    Ex8216
    Vendor
    Juniper
    Product
    Junos

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-415 Double Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High