UBUNTU-CVE-2020-6750

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Source
https://ubuntu.com/security/CVE-2020-6750
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-6750.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2020-6750
Upstream
Withdrawn
2025-07-18T16:45:43Z
Published
2020-01-09T20:15:00Z
Modified
2025-07-16T07:41:49.325548Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - low
Summary
[none]
Details

GSocketClient in GNOME GLib through 2.62.4 may occasionally connect directly to a target address instead of connecting via a proxy server when configured to do so, because the proxy_addr field is mishandled. This bug is timing-dependent and may occur only sporadically depending on network delays. The greatest security relevance is in use cases where a proxy is used to help with privacy/anonymity, even though there is no technical barrier to a direct connection. NOTE: versions before 2.60 are unaffected.

References

Affected packages

Ubuntu:16.04:LTS / glib2.0

Package

Name
glib2.0
Purl
pkg:deb/ubuntu/glib2.0@2.48.2-0ubuntu4.4?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.48.2-0ubuntu4.4

Affected versions

2.*

2.46.1-1
2.46.1-2
2.47.1-1
2.47.3-3
2.47.4-1
2.47.5-1
2.47.6-1
2.48.0-1ubuntu3
2.48.0-1ubuntu4
2.48.1-1~ubuntu16.04.1
2.48.2-0ubuntu1
2.48.2-0ubuntu3
2.48.2-0ubuntu4
2.48.2-0ubuntu4.1
2.48.2-0ubuntu4.2
2.48.2-0ubuntu4.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libglib2.0-0",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-0-dbg",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-0-dbgsym",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-0-refdbg",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-0-refdbg-dbgsym",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-bin",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-bin-dbgsym",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-data",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-dev",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-dev-dbgsym",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-doc",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-tests",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-tests-dbgsym",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-udeb",
            "binary_version": "2.48.2-0ubuntu4.4"
        },
        {
            "binary_name": "libglib2.0-udeb-dbgsym",
            "binary_version": "2.48.2-0ubuntu4.4"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:18.04:LTS / glib2.0

Package

Name
glib2.0
Purl
pkg:deb/ubuntu/glib2.0@2.56.4-0ubuntu0.18.04.4?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.56.4-0ubuntu0.18.04.4

Affected versions

2.*

2.54.1-1ubuntu1
2.55.2-2ubuntu1
2.56.0-2ubuntu1
2.56.0-4ubuntu1
2.56.1-2ubuntu1
2.56.2-0ubuntu0.18.04.1
2.56.2-0ubuntu0.18.04.2
2.56.3-0ubuntu0.18.04.1
2.56.4-0ubuntu0.18.04.2
2.56.4-0ubuntu0.18.04.3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libglib2.0-0",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-0-dbgsym",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-bin",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-bin-dbgsym",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-data",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-dev",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-dev-bin",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-dev-bin-dbgsym",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-doc",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-tests",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-tests-dbgsym",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        },
        {
            "binary_name": "libglib2.0-udeb",
            "binary_version": "2.56.4-0ubuntu0.18.04.4"
        }
    ],
    "availability": "No subscription required"
}

Ubuntu:20.04:LTS / glib2.0

Package

Name
glib2.0
Purl
pkg:deb/ubuntu/glib2.0@2.64.1-1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.64.1-1

Affected versions

2.*

2.62.1-1
2.63.1-2
2.63.1-2ubuntu1
2.63.3-1
2.63.3-3
2.63.5-2
2.64.0-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_name": "libglib2.0-0",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-0-dbgsym",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-bin",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-bin-dbgsym",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-data",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-dev",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-dev-bin",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-dev-bin-dbgsym",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-doc",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-tests",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-tests-dbgsym",
            "binary_version": "2.64.1-1"
        },
        {
            "binary_name": "libglib2.0-udeb",
            "binary_version": "2.64.1-1"
        }
    ],
    "availability": "No subscription required"
}