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RIOT-OS vulnerable to Integer Underflow during IPHC receive

Type: advisorySources: OSV

RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. An attacker can send a crafted frame to the device resulting in a large out of bounds write beyond the packet buffer. The write will create a hard fault exception after reaching the last page of RAM. The hard fault is not handled and the system will be stuck until reset. Thus the impact is denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patch manually.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2023-24820
Confirmed fixed CVEs
Not specified
Updated in this feed
3 Nov 2026, 13:06 UTC · Revision 1

Source evidence

RIOT-OS vulnerable to Integer Underflow during IPHC receive

core-osv · Original source

Published 24 Apr 2023, 14:59 UTC

RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. An attacker can send a crafted frame to the device resulting in a large out of bounds write beyond the packet buffer. The write will create a hard fault exception after reaching the last page of RAM. The hard fault is not handled and the system will be stuck until reset. Thus the impact is denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patch manually.

osv:CVE-2023-24820
Complete source record
{
  "id": "ea490d1c6af1b59da809414d9d4986a0f605009a5ba1618f2f854296d34641cc",
  "url": "https://osv.dev/vulnerability/CVE-2023-24820",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "RIOT-OS vulnerable to Integer Underflow during IPHC receive",
    "summary": "RIOT-OS, an operating system that supports Internet of Things devices, contains a network stack with the ability to process 6LoWPAN frames. An attacker can send a crafted frame to the device resulting in a large out of bounds write beyond the packet buffer. The write will create a hard fault exception after reaching the last page of RAM. The hard fault is not handled and the system will be stuck until reset. Thus the impact is denial of service. Version 2022.10 fixes this issue. As a workaround, apply the patch manually.",
    "evidence": "osv:CVE-2023-24820",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2023-24820",
      "aliases": [
        "CVE-2023-24820",
        "GHSA-vpx8-h94p-9vrj"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/riot-os/riot",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "365fbed906226dc36f50b0929e07426acbcc1e7d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "2022.10"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StringRangeExpression"
                  }
                ]
              }
            }
          ],
          "versions": [
            "2022.07-devel",
            "2022.04-RC1",
            "2022.04-devel",
            "2022.01-RC1",
            "2022.01-devel",
            "2021.10-RC1",
            "2021.10-devel",
            "2021.07-RC1",
            "2021.07-devel",
            "2021.04-RC1",
            "2021.04-devel",
            "2021.01-RC1",
            "2021.01-devel",
            "2020.10-RC1",
            "2020.10-devel",
            "2020.07-RC1",
            "2020.07-devel",
            "2020.04-RC1",
            "2020.04-devel",
            "2020.01-RC1",
            "2020.01-devel",
            "2019.10-RC1",
            "2019.10-devel",
            "2019.07-RC1",
            "2019.07-devel",
            "2019.04-RC1",
            "2019.04-devel",
            "2019.01-RC1",
            "2018.10-devel",
            "2018.07-RC1",
            "2019.01-devel",
            "2018.10-RC1",
            "2018.07-devel",
            "2018.04-RC1",
            "2018.04-devel",
            "2018.01-RC1",
            "2018.01-devel",
            "2017.10-RC1",
            "2017.10-devel",
            "2017.07-RC1",
            "2017.07-devel",
            "2017.04-RC1",
            "2017.04-devel",
            "2017.01-RC1",
            "2017.01-devel",
            "2016.10-RC1",
            "2016.10-devel",
            "2016.07-RC2",
            "2016.07-RC1",
            "2016.04-RC1",
            "2016.07-devel",
            "2016.03-devel",
            "2015.12-RC1",
            "2015.12-devel",
            "2015.09-RC1",
            "2014.12",
            "2014.05",
            "2014.01",
            "2013.08"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-24820.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.166140092Z",
      "provider": "osv",
      "references": [
        "https://github.com/RIOT-OS/RIOT/pull/18817/commits/2709fbd827b688fe62df2c77c316914f4a3a6d4a",
        "https://github.com/RIOT-OS/RIOT/pull/18820/commits/d052e2ee166e55bbdfe4c455e65dbd7e3479ebe3",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/24xxx/CVE-2023-24820.json",
        "https://github.com/RIOT-OS/RIOT/security/advisories/GHSA-vpx8-h94p-9vrj",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-24820"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-191",
          "CWE-787"
        ],
        "cna_assigner": "GitHub_M",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/24xxx/CVE-2023-24820.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-24820",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495654,
  "published_at": "2023-04-24T14:59:43.562+00:00"
}