UBUNTU-CVE-2026-34182

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Source
https://ubuntu.com/security/CVE-2026-34182
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-34182
Upstream
Downstream
Related
Published
2026-06-09T00:00:00Z
Modified
2026-06-12T09:12:00.411064254Z
Severity
  • Ubuntu - medium
Summary
[none]
Details

Issue Summary: Cryptographic Message Services (CMS) processing fails to perform sufficient input validation on the cipher and tag length fields of AuthEnvelopedData containers, leading to various potential compromises. Impact Summary: Attackers making use of these vulnerabilities may achieve key-equivalent functionality for a given CMS recipient and/or bypass integrity validation for a given message. In one use case, an attacker may send a CMS message containing AuthEnvelopedData with the cipher specified as a non-AEAD cipher. OpenSSL erroneously allows this selection, and attempts to decrypt and validate the message. An on-path attacker who captures one legitimate AES-GCM AuthEnvelopedData addressed to the victim can re-emit it with the recipientInfos set left byte-for-byte intact, so the victim's private key still unwraps the genuine CEK (the content-encryption key), but with the inner OID rewritten to AES-256-OFB (Output Feedback Mode, an unauthenticated keystream mode) and with an attacker-chosen IV and ciphertext. The victim initializes AES-256-OFB under the real CEK, never consults the MAC field, and CMSdecrypt() returns success. If the application under attack responds to the attacker with any indicator showing success or failure of the decryption effort, it is possible for the attacker to use this as an oracle to obtain key equivalent functionality for the CEK used for the chosen recipient of the message. In another use case, an attacker can reduce the tag length of the chosen AEAD cipher for a given AuthEnvelopedData container to be a single byte long, allowing an attacker to brute force CMS decryption, producing an integrity bypass for applications that trust CMSdecrypt() to reject modified content. The FIPS modules are not affected by this issue.

References

Affected packages

Ubuntu:22.04:LTS
openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.2-0ubuntu1.25

Affected versions

1.*
1.1.1l-1ubuntu1
3.*
3.0.0-1ubuntu1
3.0.1-0ubuntu1
3.0.2-0ubuntu1
3.0.2-0ubuntu1.1
3.0.2-0ubuntu1.2
3.0.2-0ubuntu1.4
3.0.2-0ubuntu1.5
3.0.2-0ubuntu1.6
3.0.2-0ubuntu1.7
3.0.2-0ubuntu1.8
3.0.2-0ubuntu1.9
3.0.2-0ubuntu1.10
3.0.2-0ubuntu1.12
3.0.2-0ubuntu1.13
3.0.2-0ubuntu1.14
3.0.2-0ubuntu1.15
3.0.2-0ubuntu1.16
3.0.2-0ubuntu1.17
3.0.2-0ubuntu1.18
3.0.2-0ubuntu1.19
3.0.2-0ubuntu1.20
3.0.2-0ubuntu1.21
3.0.2-0ubuntu1.23

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libssl3",
            "binary_version": "3.0.2-0ubuntu1.25"
        },
        {
            "binary_version": "3.0.2-0ubuntu1.25",
            "binary_name": "openssl"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
Ubuntu:24.04:LTS
edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2?arch=source&distro=noble

Affected ranges

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

Affected versions

2023.*
2023.05-2
2023.11-2
2023.11-3
2023.11-4
2023.11-5
2023.11-6
2023.11-8
2024.*
2024.02-1
2024.02-2
2024.02-2ubuntu0.1
2024.02-2ubuntu0.3
2024.02-2ubuntu0.4
2024.02-2ubuntu0.5
2024.02-2ubuntu0.6
2024.02-2ubuntu0.7
2024.02-2ubuntu0.8

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "efi-shell-aa64",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_name": "efi-shell-arm",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_name": "efi-shell-ia32",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_name": "efi-shell-riscv64",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_name": "efi-shell-x64",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_name": "ovmf",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_name": "ovmf-ia32",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_name": "ovmf-legacy",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_version": "2024.02-2ubuntu0.8",
            "binary_name": "qemu-efi-aarch64"
        },
        {
            "binary_name": "qemu-efi-arm",
            "binary_version": "2024.02-2ubuntu0.8"
        },
        {
            "binary_version": "2024.02-2ubuntu0.8",
            "binary_name": "qemu-efi-riscv64"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.13-0ubuntu3.11

Affected versions

3.*
3.0.10-1ubuntu2
3.0.10-1ubuntu2.1
3.0.10-1ubuntu3
3.0.10-1ubuntu4
3.0.13-0ubuntu2
3.0.13-0ubuntu3
3.0.13-0ubuntu3.1
3.0.13-0ubuntu3.2
3.0.13-0ubuntu3.3
3.0.13-0ubuntu3.4
3.0.13-0ubuntu3.5
3.0.13-0ubuntu3.6
3.0.13-0ubuntu3.7
3.0.13-0ubuntu3.9

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libssl3t64",
            "binary_version": "3.0.13-0ubuntu3.11"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.0.13-0ubuntu3.11"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
Ubuntu:25.10
edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2?arch=source&distro=questing

Affected ranges

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

Affected versions

2025.*
2025.02-3ubuntu2
2025.02-8
2025.02-8ubuntu1
2025.02-8ubuntu2
2025.02-8ubuntu3
2025.02-8ubuntu3.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "efi-shell-aa64",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_version": "2025.02-8ubuntu3.1",
            "binary_name": "efi-shell-arm"
        },
        {
            "binary_version": "2025.02-8ubuntu3.1",
            "binary_name": "efi-shell-ia32"
        },
        {
            "binary_name": "efi-shell-loongarch64",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_name": "efi-shell-riscv64",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_name": "efi-shell-x64",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_name": "ovmf",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_name": "ovmf-ia32",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_version": "2025.02-8ubuntu3.1",
            "binary_name": "ovmf-inteltdx"
        },
        {
            "binary_name": "ovmf-legacy",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_version": "2025.02-8ubuntu3.1",
            "binary_name": "qemu-efi-aarch64"
        },
        {
            "binary_version": "2025.02-8ubuntu3.1",
            "binary_name": "qemu-efi-arm"
        },
        {
            "binary_name": "qemu-efi-loongarch64",
            "binary_version": "2025.02-8ubuntu3.1"
        },
        {
            "binary_name": "qemu-efi-riscv64",
            "binary_version": "2025.02-8ubuntu3.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.3-1ubuntu3.4

Affected versions

3.*
3.4.1-1ubuntu3
3.5.0-2ubuntu1
3.5.2-1ubuntu1
3.5.3-1ubuntu2
3.5.3-1ubuntu3
3.5.3-1ubuntu3.3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.5.3-1ubuntu3.4",
            "binary_name": "libssl3t64"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.5.3-1ubuntu3.4"
        },
        {
            "binary_name": "openssl-provider-legacy",
            "binary_version": "3.5.3-1ubuntu3.4"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
Ubuntu:26.04:LTS
edk2

Package

Name
edk2
Purl
pkg:deb/ubuntu/edk2?arch=source&distro=resolute

Affected ranges

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

Affected versions

2025.*
2025.02-8ubuntu3
2025.11-3ubuntu6
2025.11-3ubuntu7

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "efi-shell-aa64",
            "binary_version": "2025.11-3ubuntu7"
        },
        {
            "binary_version": "2025.11-3ubuntu7",
            "binary_name": "efi-shell-loongarch64"
        },
        {
            "binary_name": "efi-shell-riscv64",
            "binary_version": "2025.11-3ubuntu7"
        },
        {
            "binary_version": "2025.11-3ubuntu7",
            "binary_name": "efi-shell-x64"
        },
        {
            "binary_name": "ovmf",
            "binary_version": "2025.11-3ubuntu7"
        },
        {
            "binary_name": "ovmf-amdsev",
            "binary_version": "2025.11-3ubuntu7"
        },
        {
            "binary_name": "ovmf-generic",
            "binary_version": "2025.11-3ubuntu7"
        },
        {
            "binary_version": "2025.11-3ubuntu7",
            "binary_name": "ovmf-inteltdx"
        },
        {
            "binary_name": "ovmf-legacy",
            "binary_version": "2025.11-3ubuntu7"
        },
        {
            "binary_version": "2025.11-3ubuntu7",
            "binary_name": "qemu-efi-aarch64"
        },
        {
            "binary_version": "2025.11-3ubuntu7",
            "binary_name": "qemu-efi-loongarch64"
        },
        {
            "binary_name": "qemu-efi-riscv64",
            "binary_version": "2025.11-3ubuntu7"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
openssl

Package

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

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.5-1ubuntu3.2

Affected versions

3.*
3.5.3-1ubuntu2
3.5.5-1ubuntu1
3.5.5-1ubuntu3

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "3.5.5-1ubuntu3.2",
            "binary_name": "libssl3t64"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.5.5-1ubuntu3.2"
        },
        {
            "binary_name": "openssl-provider-legacy",
            "binary_version": "3.5.5-1ubuntu3.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
Ubuntu:Pro:22.04:LTS
nodejs

Package

Name
nodejs
Purl
pkg:deb/ubuntu/nodejs?arch=source&distro=esm-apps%2Fjammy

Affected ranges

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

Affected versions

12.*
12.22.5~dfsg-5ubuntu1
12.22.7~dfsg-2ubuntu1
12.22.7~dfsg-2ubuntu3
12.22.9~dfsg-1ubuntu2
12.22.9~dfsg-1ubuntu3
12.22.9~dfsg-1ubuntu3.1
12.22.9~dfsg-1ubuntu3.2
12.22.9~dfsg-1ubuntu3.3
12.22.9~dfsg-1ubuntu3.4
12.22.9~dfsg-1ubuntu3.5
12.22.9~dfsg-1ubuntu3.6
12.22.9~dfsg-1ubuntu3.6+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libnode72",
            "binary_version": "12.22.9~dfsg-1ubuntu3.6+esm2"
        },
        {
            "binary_name": "nodejs",
            "binary_version": "12.22.9~dfsg-1ubuntu3.6+esm2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
Ubuntu:Pro:FIPS-preview:22.04:LTS
openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=fips-preview%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.2-0ubuntu1.10+Fips1
3.0.2-0ubuntu1.12+Fips1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.2-0ubuntu1.12+Fips1",
            "binary_name": "libssl3"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.0.2-0ubuntu1.12+Fips1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
openssl-fips

Package

Name
openssl-fips
Purl
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-preview%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.5-0ubuntu0.1+Fips2.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openssl-fips-module-3",
            "binary_version": "3.0.5-0ubuntu0.1+Fips2.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
Ubuntu:Pro:FIPS-updates:22.04:LTS
openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=fips-updates%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.2-0ubuntu1.10+Fips1
3.0.2-0ubuntu1.12+Fips1
3.0.2-0ubuntu1.14+Fips1
3.0.2-0ubuntu1.15+Fips1
3.0.2-0ubuntu1.16+Fips1
3.0.2-0ubuntu1.17+Fips1
3.0.2-0ubuntu1.18+Fips1
3.0.2-0ubuntu1.19+Fips1
3.0.2-0ubuntu1.20+Fips1
3.0.2-0ubuntu1.21+Fips1
3.0.2-0ubuntu1.23+Fips1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libssl3",
            "binary_version": "3.0.2-0ubuntu1.23+Fips1"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.0.2-0ubuntu1.23+Fips1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
openssl-fips

Package

Name
openssl-fips
Purl
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-updates%2Fjammy

Affected ranges

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

Affected versions

3.*
3.0.5-0ubuntu0.1+Fips2.1
3.0.5-0ubuntu0.2+Fips1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.0.5-0ubuntu0.2+Fips1",
            "binary_name": "openssl-fips-module-3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"
Ubuntu:Pro:FIPS-updates:24.04:LTS
openssl-fips

Package

Name
openssl-fips
Purl
pkg:deb/ubuntu/openssl-fips?arch=source&distro=fips-updates%2Fnoble

Affected ranges

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

Affected versions

3.*
3.0.13-0ubuntu3+Fips1
3.0.13-0ubuntu3.6+Fips1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "openssl-fips-module-3",
            "binary_version": "3.0.13-0ubuntu3.6+Fips1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-34182.json"