USN-4851-1

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?arch=source&distro=esm-apps%2Fxenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown 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

{
    "availability":  "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "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":  "libsolvext0",
            "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"
        }
    ]
}

Database specific

cves_map

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

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4851-1.json"

Ubuntu:Pro:18.04:LTS / libsolv