UBUNTU-CVE-2020-26575

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Source
https://ubuntu.com/security/CVE-2020-26575
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-26575.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2020-26575
Upstream
Published
2020-10-06T15:15:00Z
Modified
2025-10-14T16:49:56Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.

References

Affected packages

Ubuntu:Pro:14.04:LTS / wireshark

Package

Name
wireshark
Purl
pkg:deb/ubuntu/wireshark@2.6.10-1~ubuntu14.04.0~esm3?arch=source&distro=esm-infra-legacy/trusty

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.10.2-1
1.10.3-1
1.10.5-1ubuntu1
1.10.5-2
1.10.6-1
1.12.1+g01b65bf-4+deb8u11ubuntu0.14.04.1

2.*

2.6.3-1~ubuntu14.04.1
2.6.4-2~ubuntu14.04.1
2.6.5-1~ubuntu14.04.1
2.6.6-1~ubuntu14.04.0
2.6.8-1~ubuntu14.04.0~esm1
2.6.10-1~ubuntu14.04.0~esm1
2.6.10-1~ubuntu14.04.0~esm2
2.6.10-1~ubuntu14.04.0~esm3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwireshark-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwireshark11"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwiretap-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwiretap8"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwscodecs2"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwsutil-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "libwsutil9"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "tshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "2.6.10-1~ubuntu14.04.0~esm3",
            "binary_name": "wireshark-qt"
        }
    ]
}

Ubuntu:Pro:16.04:LTS / wireshark

Package

Name
wireshark
Purl
pkg:deb/ubuntu/wireshark@2.6.10-1~ubuntu16.04.0+esm2?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.12.7+g7fc8978-1
1.12.8+g5b6e543-2

2.*

2.0.1+g59ea380-3build1
2.0.2+ga16e22e-1
2.2.6+g32dac6a-2ubuntu0.16.04
2.6.3-1~ubuntu16.04.1
2.6.4-2~ubuntu16.04.0
2.6.5-1~ubuntu16.04.0
2.6.6-1~ubuntu16.04.0
2.6.8-1~ubuntu16.04.0
2.6.10-1~ubuntu16.04.0
2.6.10-1~ubuntu16.04.0+esm1
2.6.10-1~ubuntu16.04.0+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwireshark-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwireshark11"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwiretap-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwiretap8"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwscodecs2"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwsutil-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "libwsutil9"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "tshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "2.6.10-1~ubuntu16.04.0+esm2",
            "binary_name": "wireshark-qt"
        }
    ]
}

Ubuntu:Pro:18.04:LTS / wireshark

Package

Name
wireshark
Purl
pkg:deb/ubuntu/wireshark@2.6.10-1~ubuntu18.04.0+esm2?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.4.2-1
2.4.3-1
2.4.4-1
2.4.5-1
2.6.3-1~ubuntu18.04.1
2.6.4-2~ubuntu18.04.0
2.6.5-1~ubuntu18.04.0
2.6.6-1~ubuntu18.04.0
2.6.8-1~ubuntu18.04.0
2.6.10-1~ubuntu18.04.0
2.6.10-1~ubuntu18.04.0+esm1
2.6.10-1~ubuntu18.04.0+esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwireshark-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwireshark11"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwiretap-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwiretap8"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwscodecs2"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwsutil-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "libwsutil9"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "tshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark-dev"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "2.6.10-1~ubuntu18.04.0+esm2",
            "binary_name": "wireshark-qt"
        }
    ]
}

Ubuntu:Pro:20.04:LTS / wireshark

Package

Name
wireshark
Purl
pkg:deb/ubuntu/wireshark@3.2.3-1ubuntu0.1~esm2?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

3.*

3.0.5-1
3.0.7-1
3.2.1-1
3.2.2-1
3.2.3-1
3.2.3-1ubuntu0.1~esm1
3.2.3-1ubuntu0.1~esm2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwireshark-data"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwireshark-dev"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwireshark13"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwiretap-dev"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwiretap10"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwsutil-dev"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "libwsutil11"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "tshark"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark-common"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark-dev"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark-gtk"
        },
        {
            "binary_version": "3.2.3-1ubuntu0.1~esm2",
            "binary_name": "wireshark-qt"
        }
    ]
}