UBUNTU-CVE-2026-34155

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Source
https://ubuntu.com/security/CVE-2026-34155
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34155.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-34155
Upstream
Published
2026-03-31T14:16:00Z
Modified
2026-05-20T16:25:32.941750192Z
Severity
  • 7.2 (High) CVSS_V4 - 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 CVSS Calculator
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
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.

References

Affected packages

Ubuntu:20.04:LTS / rauc

Package

Name
rauc
Purl
pkg:deb/ubuntu/rauc?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.1-2
1.2-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rauc",
            "binary_version": "1.2-1"
        },
        {
            "binary_name": "rauc-service",
            "binary_version": "1.2-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34155.json"

Ubuntu:22.04:LTS / rauc

Package

Name
rauc
Purl
pkg:deb/ubuntu/rauc?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.5.1-1
1.5.1-1build1
1.6-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rauc",
            "binary_version": "1.6-1"
        },
        {
            "binary_name": "rauc-service",
            "binary_version": "1.6-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34155.json"

Ubuntu:24.04:LTS / rauc

Package

Name
rauc
Purl
pkg:deb/ubuntu/rauc?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
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": "1.11.3-2"
        },
        {
            "binary_name": "rauc-service",
            "binary_version": "1.11.3-2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34155.json"

Ubuntu:25.10 / rauc

Package

Name
rauc
Purl
pkg:deb/ubuntu/rauc?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.13-1
1.13-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rauc",
            "binary_version": "1.13-3"
        },
        {
            "binary_name": "rauc-service",
            "binary_version": "1.13-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34155.json"

Ubuntu:26.04:LTS / rauc

Package

Name
rauc
Purl
pkg:deb/ubuntu/rauc?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.13-3
1.14-1
1.15-1
1.15.1-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "rauc",
            "binary_version": "1.15.1-1"
        },
        {
            "binary_name": "rauc-service",
            "binary_version": "1.15.1-1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34155.json"