USN-8155-1

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Source
https://ubuntu.com/security/notices/USN-8155-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8155-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-8155-1
Upstream
Related
Published
2026-04-08T11:57:32Z
Modified
2026-04-14T09:05:24.952090Z
Summary
openssl vulnerabilities
Details

Viktor Dukhovni discovered that OpenSSL incorrectly negotiated the expected preferred key exchange group when used as a TLS 1.3 server. This could result in a less preferred key exchange being used, contrary to expectations. This issue only affected Ubuntu 25.10. (CVE-2026-2673)

Igor Morgenstern discovered that OpenSSL incorrectly handled certain memory operations when used as a DANE client. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-28387)

Igor Morgenstern discovered that OpenSSL incorrectly handled certain memory operations when processing a delta CRL. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2026-28388)

Nathan Sportsman, Daniel Rhea, and Jaeho Nam discovered that OpenSSL incorrectly handled certain memory operations when processing a crafted CMS EnvelopedData message with KeyAgreeRecipientInfo. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2026-28389)

Muhammad Daffa, Joshua Rogers, and Chanho Kim discovered that OpenSSL incorrectly handled processing of a crafted CMS EnvelopedData message with KeyTransportRecipientInfo. A remote attacker could possibly use this issue to cause OpenSSL to crash, resulting in a denial of service. (CVE-2026-28390)

Quoc Tran discovered that OpenSSL incorrectly handled hexadecimal conversion on 32-bit platforms. A remote attacker could use this issue to cause OpenSSL to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-31789)

Simo Sorce discovered that OpenSSL incorrectly handled failures in RSA KEM RSASVE Encapsulation. A remote attacker could possibly use this issue to obtain sensitive information. (CVE-2026-31790)

References

Affected packages

Ubuntu:22.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl@3.0.2-0ubuntu1.23?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.2-0ubuntu1.23

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libssl-dev",
            "binary_version": "3.0.2-0ubuntu1.23"
        },
        {
            "binary_name": "libssl3",
            "binary_version": "3.0.2-0ubuntu1.23"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.0.2-0ubuntu1.23"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8155-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:22.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28387"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28388"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28389"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28390"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-31789"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-31790"
        }
    ]
}

Ubuntu:24.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl@3.0.13-0ubuntu3.9?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.0.13-0ubuntu3.9

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libssl-dev",
            "binary_version": "3.0.13-0ubuntu3.9"
        },
        {
            "binary_name": "libssl3t64",
            "binary_version": "3.0.13-0ubuntu3.9"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.0.13-0ubuntu3.9"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8155-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:24.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28387"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28388"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28389"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28390"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-31789"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-31790"
        }
    ]
}

Ubuntu:25.10 / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl@3.5.3-1ubuntu3.3?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
3.5.3-1ubuntu3.3

Affected versions

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

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libssl-dev",
            "binary_version": "3.5.3-1ubuntu3.3"
        },
        {
            "binary_name": "libssl3t64",
            "binary_version": "3.5.3-1ubuntu3.3"
        },
        {
            "binary_name": "openssl",
            "binary_version": "3.5.3-1ubuntu3.3"
        },
        {
            "binary_name": "openssl-provider-legacy",
            "binary_version": "3.5.3-1ubuntu3.3"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8155-1.json"
cves_map 
{
    "ecosystem": "Ubuntu:25.10",
    "cves": [
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-2673"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28387"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28388"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28389"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-28390"
        },
        {
            "severity": [
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ],
            "id": "CVE-2026-31789"
        },
        {
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ],
            "id": "CVE-2026-31790"
        }
    ]
}