ubuntu-cve-2026-34155
Vulnerability from osv_ubuntu
Published
2026-03-31 14:16
Modified
2026-05-20 15:27
Summary
Details

RAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the 'plain' format exceeding a payload size of 2 GiB cause an integer overflow which results in a signature which covers only the first few bytes of the payload. Given such a bundle with a legitimate signature, an attacker can modify the part of the payload which is not covered by the signature. This issue has been patched in version 1.15.2.

Severity
7.2 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rauc",
            "binary_version": "1.2-1"
          },
          {
            "binary_name": "rauc-service",
            "binary_version": "1.2-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "rauc",
        "purl": "pkg:deb/ubuntu/rauc@1.2-1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1-2",
        "1.2-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rauc",
            "binary_version": "1.6-1"
          },
          {
            "binary_name": "rauc-service",
            "binary_version": "1.6-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "rauc",
        "purl": "pkg:deb/ubuntu/rauc@1.6-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.1-1",
        "1.5.1-1build1",
        "1.6-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rauc",
            "binary_version": "1.11.3-2"
          },
          {
            "binary_name": "rauc-service",
            "binary_version": "1.11.3-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "rauc",
        "purl": "pkg:deb/ubuntu/rauc@1.11.3-2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.1-1",
        "1.10.1-2",
        "1.11-1",
        "1.11-1build3",
        "1.11.3-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rauc",
            "binary_version": "1.13-3"
          },
          {
            "binary_name": "rauc-service",
            "binary_version": "1.13-3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "rauc",
        "purl": "pkg:deb/ubuntu/rauc@1.13-3?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.13-1",
        "1.13-3"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "rauc",
            "binary_version": "1.15.1-1"
          },
          {
            "binary_name": "rauc-service",
            "binary_version": "1.15.1-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "rauc",
        "purl": "pkg:deb/ubuntu/rauc@1.15.1-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.13-3",
        "1.14-1",
        "1.15-1",
        "1.15.1-1"
      ]
    }
  ],
  "aliases": [],
  "details": "RAUC controls the update process on embedded Linux systems. Prior to version 1.15.2, RAUC bundles using the \u0027plain\u0027 format exceeding a payload size of 2 GiB cause an integer overflow which results in a signature which covers only the first few bytes of the payload. Given such a bundle with a legitimate signature, an attacker can modify the part of the payload which is not covered by the signature. This issue has been patched in version 1.15.2.",
  "id": "UBUNTU-CVE-2026-34155",
  "modified": "2026-05-20T15:27:23Z",
  "published": "2026-03-31T14:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-34155"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-34155"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rauc/rauc/security/advisories/GHSA-6hj7-q844-m2hx"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rauc/rauc/commit/4fb7c798d6ae412344fb8f8d310d773046af3441"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rauc/rauc/releases/tag/v1.15.2"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:P/VC:L/VI:H/VA:N/SC:H/SI:H/SA:H",
      "type": "CVSS_V4"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-34155"
  ]
}



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