CVE-2022-36052

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    CVE-2022-36052

    Published: 1 Sept 2022Last Modified: 12 Aug 2026

    Summary: Out-of-bounds read when decompressing UDP header

    Details: Contiki-NG is an open-source, cross-platform operating system for Next-Generation IoT devices. The 6LoWPAN implementation in Contiki-NG may cast a UDP header structure at a certain offset in a packet buffer. The code does not check whether the packet buffer is large enough to fit a full UDP header structure from the offset where the casting is made. Hence, it is possible to cause an out-of-bounds read beyond the packet buffer. The problem affects anyone running devices with Contiki-NG versions previous to 4.8, and which may receive 6LoWPAN packets from external parties. The problem has been patched in Contiki-NG version 4.8.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/36xxx/CVE-2022-36052.json, https://github.com/contiki-ng/contiki-ng/security/advisories/GHSA-vwr8-6mqv-x7f5, https://nvd.nist.gov/vuln/detail/CVE-2022-36052, https://github.com/contiki-ng/contiki-ng/pull/1648

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -9771e9aaebbfbb5633ce69eb9876e0fc70bbcd6f

    Affected versions

    release/v4.7

    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
    CVE-2022-36052 | CVE-DB