USN-8847-2

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Source
https://ubuntu.com/security/notices/USN-8847-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8847-2.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-8847-2
Upstream
CVE (4)
Related
UBUNTU (4)
Published
2026-09-29T23:28:05Z
Modified
2026-09-30T18:41:41Z
Summary
openssl, openssl1.0 vulnerabilities
Details

USN-8847-1 fixed vulnerabilities in OpenSSL. This update provides the corresponding fix for OpenSSL on Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 20.04 LTS.

Original advisory details:

It was discovered that OpenSSL incorrectly handled certain certificate revocation list distribution point names. An attacker could possibly use this issue to cause OpenSSL to consume excessive memory, resulting in a denial of service. (CVE-2026-35189)

It was discovered that OpenSSL incorrectly implemented scalar multiplication for non-NIST elliptic curves. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2026-54872)

It was discovered that OpenSSL incorrectly implemented SM2 signature generation. An attacker could possibly use this issue to perform a timing side-channel attack and obtain sensitive information. This issue only affected Ubuntu 18.04 LTS and Ubuntu 20.04 LTS. (CVE-2026-77696)

It was discovered that OpenSSL incorrectly handled DTLS retransmission of handshake messages. An attacker could possibly use this issue to cause incorrect handshake behavior or a denial of service. (CVE-2026-84782)

References

Affected packages

Ubuntu:Pro:14.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.1f-1ubuntu2.27+esm17

Affected versions

1.*
1.0.1e-3ubuntu1
1.0.1e-4ubuntu1
1.0.1e-4ubuntu2
1.0.1e-4ubuntu3
1.0.1e-4ubuntu4
1.0.1f-1ubuntu1
1.0.1f-1ubuntu2
1.0.1f-1ubuntu2.1
1.0.1f-1ubuntu2.2
1.0.1f-1ubuntu2.3
1.0.1f-1ubuntu2.4
1.0.1f-1ubuntu2.5
1.0.1f-1ubuntu2.7
1.0.1f-1ubuntu2.8
1.0.1f-1ubuntu2.11
1.0.1f-1ubuntu2.12
1.0.1f-1ubuntu2.15
1.0.1f-1ubuntu2.16
1.0.1f-1ubuntu2.17
1.0.1f-1ubuntu2.18
1.0.1f-1ubuntu2.19
1.0.1f-1ubuntu2.20
1.0.1f-1ubuntu2.21
1.0.1f-1ubuntu2.22
1.0.1f-1ubuntu2.23
1.0.1f-1ubuntu2.24
1.0.1f-1ubuntu2.25
1.0.1f-1ubuntu2.26
1.0.1f-1ubuntu2.27
1.0.1f-1ubuntu2.27+esm1
1.0.1f-1ubuntu2.27+esm2
1.0.1f-1ubuntu2.27+esm3
1.0.1f-1ubuntu2.27+esm4
1.0.1f-1ubuntu2.27+esm5
1.0.1f-1ubuntu2.27+esm6
1.0.1f-1ubuntu2.27+esm7
1.0.1f-1ubuntu2.27+esm9
1.0.1f-1ubuntu2.27+esm10
1.0.1f-1ubuntu2.27+esm11
1.0.1f-1ubuntu2.27+esm12
1.0.1f-1ubuntu2.27+esm13
1.0.1f-1ubuntu2.27+esm14
1.0.1f-1ubuntu2.27+esm16

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libssl1.0.0",
            "binary_version": "1.0.1f-1ubuntu2.27+esm17"
        },
        {
            "binary_name": "openssl",
            "binary_version": "1.0.1f-1ubuntu2.27+esm17"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-35189",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-54872",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-77696",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-84782",
            "severity": [
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:14.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8847-2.json"

Ubuntu:Pro:16.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=esm-infra-legacy%2Fxenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.2g-1ubuntu4.20+esm19

Affected versions

1.*
1.0.2d-0ubuntu1
1.0.2d-0ubuntu2
1.0.2e-1ubuntu1
1.0.2f-2ubuntu1
1.0.2g-1ubuntu2
1.0.2g-1ubuntu3
1.0.2g-1ubuntu4
1.0.2g-1ubuntu4.1
1.0.2g-1ubuntu4.2
1.0.2g-1ubuntu4.4
1.0.2g-1ubuntu4.5
1.0.2g-1ubuntu4.6
1.0.2g-1ubuntu4.8
1.0.2g-1ubuntu4.9
1.0.2g-1ubuntu4.10
1.0.2g-1ubuntu4.11
1.0.2g-1ubuntu4.12
1.0.2g-1ubuntu4.13
1.0.2g-1ubuntu4.14
1.0.2g-1ubuntu4.15
1.0.2g-1ubuntu4.16
1.0.2g-1ubuntu4.17
1.0.2g-1ubuntu4.18
1.0.2g-1ubuntu4.19
1.0.2g-1ubuntu4.20
1.0.2g-1ubuntu4.20+esm1
1.0.2g-1ubuntu4.20+esm2
1.0.2g-1ubuntu4.20+esm3
1.0.2g-1ubuntu4.20+esm4
1.0.2g-1ubuntu4.20+esm5
1.0.2g-1ubuntu4.20+esm6
1.0.2g-1ubuntu4.20+esm7
1.0.2g-1ubuntu4.20+esm9
1.0.2g-1ubuntu4.20+esm10
1.0.2g-1ubuntu4.20+esm11
1.0.2g-1ubuntu4.20+esm12
1.0.2g-1ubuntu4.20+esm13
1.0.2g-1ubuntu4.20+esm14
1.0.2g-1ubuntu4.20+esm15
1.0.2g-1ubuntu4.20+esm16
1.0.2g-1ubuntu4.20+esm18

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libssl1.0.0",
            "binary_version": "1.0.2g-1ubuntu4.20+esm19"
        },
        {
            "binary_name": "openssl",
            "binary_version": "1.0.2g-1ubuntu4.20+esm19"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-35189",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-54872",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-77696",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-84782",
            "severity": [
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8847-2.json"

Ubuntu:Pro:18.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.1.1-1ubuntu2.1~18.04.23+esm11

Affected versions

1.*
1.0.2g-1ubuntu13
1.0.2g-1ubuntu14
1.0.2n-1ubuntu1
1.1.0g-2ubuntu1
1.1.0g-2ubuntu2
1.1.0g-2ubuntu3
1.1.0g-2ubuntu4
1.1.0g-2ubuntu4.1
1.1.0g-2ubuntu4.3
1.1.1-1ubuntu2.1~18.04.1
1.1.1-1ubuntu2.1~18.04.2
1.1.1-1ubuntu2.1~18.04.3
1.1.1-1ubuntu2.1~18.04.4
1.1.1-1ubuntu2.1~18.04.5
1.1.1-1ubuntu2.1~18.04.6
1.1.1-1ubuntu2.1~18.04.7
1.1.1-1ubuntu2.1~18.04.8
1.1.1-1ubuntu2.1~18.04.9
1.1.1-1ubuntu2.1~18.04.10
1.1.1-1ubuntu2.1~18.04.13
1.1.1-1ubuntu2.1~18.04.14
1.1.1-1ubuntu2.1~18.04.15
1.1.1-1ubuntu2.1~18.04.17
1.1.1-1ubuntu2.1~18.04.19
1.1.1-1ubuntu2.1~18.04.20
1.1.1-1ubuntu2.1~18.04.21
1.1.1-1ubuntu2.1~18.04.22
1.1.1-1ubuntu2.1~18.04.23
1.1.1-1ubuntu2.1~18.04.23+esm1
1.1.1-1ubuntu2.1~18.04.23+esm3
1.1.1-1ubuntu2.1~18.04.23+esm4
1.1.1-1ubuntu2.1~18.04.23+esm5
1.1.1-1ubuntu2.1~18.04.23+esm6
1.1.1-1ubuntu2.1~18.04.23+esm7
1.1.1-1ubuntu2.1~18.04.23+esm8
1.1.1-1ubuntu2.1~18.04.23+esm9
1.1.1-1ubuntu2.1~18.04.23+esm10

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libssl1.1",
            "binary_version": "1.1.1-1ubuntu2.1~18.04.23+esm11"
        },
        {
            "binary_name": "openssl",
            "binary_version": "1.1.1-1ubuntu2.1~18.04.23+esm11"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-35189",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-54872",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-77696",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-84782",
            "severity": [
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8847-2.json"

Ubuntu:Pro:18.04:LTS / openssl1.0

Package

Name
openssl1.0
Purl
pkg:deb/ubuntu/openssl1.0?arch=source&distro=esm-infra%2Fbionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.0.2n-1ubuntu5.13+esm7

Affected versions

1.*
1.0.2n-1ubuntu2
1.0.2n-1ubuntu3
1.0.2n-1ubuntu4
1.0.2n-1ubuntu5
1.0.2n-1ubuntu5.1
1.0.2n-1ubuntu5.2
1.0.2n-1ubuntu5.3
1.0.2n-1ubuntu5.4
1.0.2n-1ubuntu5.5
1.0.2n-1ubuntu5.6
1.0.2n-1ubuntu5.7
1.0.2n-1ubuntu5.8
1.0.2n-1ubuntu5.9
1.0.2n-1ubuntu5.10
1.0.2n-1ubuntu5.11
1.0.2n-1ubuntu5.12
1.0.2n-1ubuntu5.13
1.0.2n-1ubuntu5.13+esm1
1.0.2n-1ubuntu5.13+esm2
1.0.2n-1ubuntu5.13+esm3
1.0.2n-1ubuntu5.13+esm4
1.0.2n-1ubuntu5.13+esm5
1.0.2n-1ubuntu5.13+esm6

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libssl1.0.0",
            "binary_version": "1.0.2n-1ubuntu5.13+esm7"
        },
        {
            "binary_name": "openssl1.0",
            "binary_version": "1.0.2n-1ubuntu5.13+esm7"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-35189",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-54872",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-77696",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-84782",
            "severity": [
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8847-2.json"

Ubuntu:Pro:20.04:LTS / openssl

Package

Name
openssl
Purl
pkg:deb/ubuntu/openssl?arch=source&distro=esm-infra%2Ffocal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.1.1f-1ubuntu2.24+esm6

Affected versions

1.*
1.1.1c-1ubuntu4
1.1.1d-2ubuntu3
1.1.1d-2ubuntu6
1.1.1f-1ubuntu1
1.1.1f-1ubuntu2
1.1.1f-1ubuntu2.1
1.1.1f-1ubuntu2.2
1.1.1f-1ubuntu2.3
1.1.1f-1ubuntu2.4
1.1.1f-1ubuntu2.5
1.1.1f-1ubuntu2.8
1.1.1f-1ubuntu2.9
1.1.1f-1ubuntu2.10
1.1.1f-1ubuntu2.11
1.1.1f-1ubuntu2.12
1.1.1f-1ubuntu2.13
1.1.1f-1ubuntu2.15
1.1.1f-1ubuntu2.16
1.1.1f-1ubuntu2.17
1.1.1f-1ubuntu2.18
1.1.1f-1ubuntu2.19
1.1.1f-1ubuntu2.20
1.1.1f-1ubuntu2.21
1.1.1f-1ubuntu2.22
1.1.1f-1ubuntu2.23
1.1.1f-1ubuntu2.24
1.1.1f-1ubuntu2.24+esm1
1.1.1f-1ubuntu2.24+esm2
1.1.1f-1ubuntu2.24+esm3
1.1.1f-1ubuntu2.24+esm4
1.1.1f-1ubuntu2.24+esm5

Ecosystem specific 

{
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_name": "libssl1.1",
            "binary_version": "1.1.1f-1ubuntu2.24+esm6"
        },
        {
            "binary_name": "openssl",
            "binary_version": "1.1.1f-1ubuntu2.24+esm6"
        }
    ]
}

Database specific

cves_map 
{
    "cves": [
        {
            "id": "CVE-2026-35189",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-54872",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-77696",
            "severity": [
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        },
        {
            "id": "CVE-2026-84782",
            "severity": [
                {
                    "score": "high",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:20.04:LTS"
}
source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-8847-2.json"