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    CVE-2020-24335

    An issue was discovered in uIP through 1.0, as used in Contiki and Contiki-NG. Domain name parsing lacks bounds checks, allowing an attacker to corrupt memory with crafted DNS packets.

    Published:Feb 2, 2021
    Last Modified:Nov 21, 2024
    EPS:Feb 2, 2021
    EPSS Score:0.01464
    CVSS Score:7.5

    Affected Products

    Vendor
    Contiki-ng
    Product
    Contiki-ng
    Vendor
    Contiki-os
    Product
    Contiki
    Vendor
    Uip Project
    Product
    Uip

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-5857 (CVSS 9.2) — Contiki-NG's MQTT client parse_publish_vhdr() in os/net/app-layer/mqtt/mqtt.c sets topic_len_received=1 before…
    CVE-2026-5856 (CVSS 7.1) — Contiki-NG's DNS/mDNS resolver skip_name() in os/services/resolv/resolv.c walks DNS wire-format name labels wi…
    CVE-2026-5855 (CVSS 8.7) — Contiki-NG's LwM2M TLV parser lwm2m_tlv_read() in os/services/lwm2m/lwm2m-tlv.c ignores its caller-supplied bu…
    CVE-2023-29001 (CVSS 8.7) — Contiki-NG is an open-source, cross-platform operating system for IoT devices. The Contiki-NG operating system…
    CVE-2024-41125 (CVSS 8.3) — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte…
    CVE-2024-41126 (CVSS 8.3) — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An out-of-bounds read of 1 byte…
    CVE-2024-47181 (CVSS 7.5) — Contiki-NG is an open-source, cross-platform operating system for IoT devices. An unaligned memory access can …
    CVE-2023-50926 (CVSS 7.5) — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bound…
    CVE-2023-50927 (CVSS 8.6) — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An attacker can…
    CVE-2023-48229 (CVSS 7) — Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. An out-of-bound…

    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