UBUNTU-CVE-2021-37311

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Source
https://ubuntu.com/security/CVE-2021-37311
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2021/UBUNTU-CVE-2021-37311.json
JSON Data
https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2021-37311
Upstream
Published
2023-02-03T18:15:00Z
Modified
2025-10-24T04:50:27Z
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
  • 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

Buffer Overflow vulnerability in fcitx5 5.0.8 allows attackers to cause a denial of service via crafted message to the application's listening port.

References

Affected packages

Ubuntu:20.04:LTS / fcitx5

Package

Name
fcitx5
Purl
pkg:deb/ubuntu/fcitx5@0.0~git20200128.9e3bc8d+ds1-3?arch=source&distro=focal

Affected ranges

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

Affected versions

Other

0~20181128+ds1-1build1
0~20191021+ds1-1
0~20191021+ds2-1
0~20191021+ds2-2

0.*

0.0~git20191114.c2b3517+ds1-1
0.0~git20191231.c0a272a+ds1-1
0.0~git20191231.c0a272a+ds1-2
0.0~git20200117.a2871df+ds2-1
0.0~git20200128.9e3bc8d+ds1-1
0.0~git20200128.9e3bc8d+ds1-2
0.0~git20200128.9e3bc8d+ds1-3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-data"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-module-dbus"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-module-ibus"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-module-kimpanel"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-module-quickphrase"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-module-wayland"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-module-xorg"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-modules"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "fcitx5-modules-dev"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "libfcitx5config-dev"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "libfcitx5config5"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "libfcitx5core-dev"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "libfcitx5core5"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "libfcitx5utils-dev"
        },
        {
            "binary_version": "0.0~git20200128.9e3bc8d+ds1-3",
            "binary_name": "libfcitx5utils1"
        }
    ]
}

Ubuntu:22.04:LTS / fcitx5

Package

Name
fcitx5
Purl
pkg:deb/ubuntu/fcitx5@5.0.14-1?arch=source&distro=jammy

Affected ranges

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

Affected versions

5.*

5.0.5-1ubuntu2
5.0.9-2
5.0.10-1
5.0.11-1
5.0.12-1
5.0.13-1
5.0.14-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5-data"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5-module-emoji"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5-module-quickphrase"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5-module-wayland"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5-module-xorg"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5-modules"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "fcitx5-modules-dev"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "libfcitx5config-dev"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "libfcitx5config6"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "libfcitx5core-dev"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "libfcitx5core7"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "libfcitx5utils-dev"
        },
        {
            "binary_version": "5.0.14-1",
            "binary_name": "libfcitx5utils2"
        }
    ]
}

Ubuntu:24.04:LTS / fcitx5

Package

Name
fcitx5
Purl
pkg:deb/ubuntu/fcitx5@5.1.7-1build3?arch=source&distro=noble

Affected ranges

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

Affected versions

5.*

5.1.0-1
5.1.1-1
5.1.2-1
5.1.3-1
5.1.4-1
5.1.5-1
5.1.6-1
5.1.6-2
5.1.7-1
5.1.7-1build2
5.1.7-1build3

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "fcitx5"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "fcitx5-data"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "fcitx5-frontend-all"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "fcitx5-modules"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "fcitx5-modules-dev"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "libfcitx5config-dev"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "libfcitx5config6"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "libfcitx5core-dev"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "libfcitx5core7"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "libfcitx5utils-dev"
        },
        {
            "binary_version": "5.1.7-1build3",
            "binary_name": "libfcitx5utils2"
        }
    ]
}

Ubuntu:25.10 / fcitx5

Package

Name
fcitx5
Purl
pkg:deb/ubuntu/fcitx5@5.1.14-1?arch=source&distro=questing

Affected ranges

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

Affected versions

5.*

5.1.12-2
5.1.14-1

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.1.14-1",
            "binary_name": "fcitx5"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "fcitx5-data"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "fcitx5-frontend-all"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "fcitx5-modules"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "fcitx5-modules-dev"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "libfcitx5config-dev"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "libfcitx5config6"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "libfcitx5core-dev"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "libfcitx5core7"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "libfcitx5utils-dev"
        },
        {
            "binary_version": "5.1.14-1",
            "binary_name": "libfcitx5utils2"
        }
    ]
}

Ubuntu:25.04 / fcitx5

Package

Name
fcitx5
Purl
pkg:deb/ubuntu/fcitx5@5.1.12-2?arch=source&distro=plucky

Affected ranges

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

Affected versions

5.*

5.1.10-1
5.1.11-2
5.1.12-1
5.1.12-2

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "5.1.12-2",
            "binary_name": "fcitx5"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "fcitx5-data"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "fcitx5-frontend-all"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "fcitx5-modules"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "fcitx5-modules-dev"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "libfcitx5config-dev"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "libfcitx5config6"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "libfcitx5core-dev"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "libfcitx5core7"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "libfcitx5utils-dev"
        },
        {
            "binary_version": "5.1.12-2",
            "binary_name": "libfcitx5utils2"
        }
    ]
}