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    CVE-2021-33304

    Double Free vulnerability in virtualsquare picoTCP v1.7.0 and picoTCP-NG v2.1 in modules/pico_fragments.c in function pico_fragments_reassemble, allows attackers to execute arbitrary code.

    Published:Feb 15, 2023
    Last Modified:Mar 20, 2025
    EPS:Feb 15, 2023
    EPSS Score:0.00246
    CVSS Score:9.8

    Affected Products

    Vendor
    Altran
    Product
    Picotcp
    Vendor
    Altran
    Product
    Picotcp-ng

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-415 Double Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

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    CVE-2020-24340 (CVSS 7.5) — An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The code that processes DNS responses in pico…
    CVE-2020-24339 (CVSS 7.5) — An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. The DNS domain name record decompression func…
    CVE-2020-24338 (CVSS 9.8) — An issue was discovered in picoTCP through 1.7.0. The DNS domain name record decompression functionality in pi…
    CVE-2020-24337 (CVSS 7.5) — An issue was discovered in picoTCP and picoTCP-NG through 1.7.0. When an unsupported TCP option with zero leng…
    CVE-2020-17445 (CVSS 7.5) — An issue was discovered in picoTCP 1.7.0. The code for processing the IPv6 destination options does not check …
    CVE-2020-17444 (CVSS 7.5) — An issue was discovered in picoTCP 1.7.0. The routine for processing the next header field (and deducing wheth…
    CVE-2020-17443 (CVSS 7.5) — An issue was discovered in picoTCP 1.7.0. The code for creating an ICMPv6 echo replies doesn't check whether t…
    CVE-2020-17442 (CVSS 7.5) — An issue was discovered in picoTCP 1.7.0. The code for parsing the hop-by-hop IPv6 extension headers does not …

    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