UBUNTU-CVE-2021-4186

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Source
https://ubuntu.com/security/CVE-2021-4186
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-4186.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2021-4186
Upstream
Downstream
Related
Published
2021-12-30T22:15:00Z
Modified
2025-09-08T16:46:52Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L CVSS Calculator
  • 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

Crash in the Gryphon dissector in Wireshark 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file

References

Affected packages

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
Fixed
3.2.3-1ubuntu0.1~esm2

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

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