UBUNTU-CVE-2018-20533

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Source
https://ubuntu.com/security/CVE-2018-20533
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-20533.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2018-20533
Upstream
Downstream
Related
Published
2018-12-28T00:00:00Z
Modified
2025-09-08T16:45:07Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

There is a NULL pointer dereference at ext/testcase.c (function testcasestr2depcomplex) in libsolvext.a in libsolv through 0.7.2 that will cause 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 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.6.11-1.1ubuntu0.1~esm1",
            "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"
        }
    ]
}

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 

{
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
    "binaries": [
        {
            "binary_version": "0.6.30-1ubuntu0.1~esm1",
            "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"
        }
    ]
}