USN-4851-1

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Source
https://ubuntu.com/security/notices/USN-4851-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4851-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4851-1
Upstream
Related
Published
2021-03-15T22:36:33.444145Z
Modified
2025-10-13T04:35:24Z
Summary
libsolv vulnerabilities
Details

It was discovered that Libsolv incorrectly handled certain malformed input. An attacker could use this issue to cause Libsolv to crash, resulting in a denial of service.

References

Affected packages

Ubuntu:Pro:16.04:LTS / libsolv

Package

Name
libsolv
Purl
pkg:deb/ubuntu/libsolv@0.6.11-1.1ubuntu0.1~esm1?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.11-1.1ubuntu0.1~esm1

Affected versions

0.*

0.6.11-1
0.6.11-1build1
0.6.11-1.1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsolv-perl",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolv-tools",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolv0",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolv0-dev",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolvext0",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolvext0-dev",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python-solv",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-solv",
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2018-20532",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2018-20533",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2018-20534",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:16.04:LTS"
}

Ubuntu:Pro:18.04:LTS / libsolv

Package

Name
libsolv
Purl
pkg:deb/ubuntu/libsolv@0.6.30-1ubuntu0.1~esm1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
0.6.30-1ubuntu0.1~esm1

Affected versions

0.*

0.6.28-2build1
0.6.30-1build1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libsolv-perl",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolv-tools",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolv0",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolv0-dev",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolvext0",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "libsolvext0-dev",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python-solv",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        },
        {
            "binary_name": "python3-solv",
            "binary_version": "0.6.30-1ubuntu0.1~esm1"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2018-20532",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2018-20533",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        },
        {
            "id": "CVE-2018-20534",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:Pro:18.04:LTS"
}