USN-4746-1

See a problem?
Please try reporting it to the source first.
Source
https://ubuntu.com/security/notices/USN-4746-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-4746-1.json
JSON Data
https://api.osv.dev/v1/vulns/USN-4746-1
Upstream
Related
Published
2021-02-24T13:51:11.922769Z
Modified
2025-10-13T04:35:21Z
Summary
xterm vulnerability
Details

Tavis Ormandy discovered that xterm incorrectly handled certain character sequences. A remote attacker could use this issue to cause xterm to crash, resulting in a denial of service, or possibly execute arbitrary code.

References

Affected packages

Ubuntu:16.04:LTS / xterm

Package

Name
xterm
Purl
pkg:deb/ubuntu/xterm@322-1ubuntu1.2?arch=source&distro=xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
322-1ubuntu1.2

Affected versions

Other

318-2ubuntu1
318-2ubuntu2
322-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "322-1ubuntu1.2",
            "binary_name": "xterm"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-27135",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:18.04:LTS / xterm

Package

Name
xterm
Purl
pkg:deb/ubuntu/xterm@330-1ubuntu2.2?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
330-1ubuntu2.2

Affected versions

Other

324-2ubuntu1
330-1ubuntu1
330-1ubuntu2

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "330-1ubuntu2.2",
            "binary_name": "xterm"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-27135",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

Ubuntu:20.04:LTS / xterm

Package

Name
xterm
Purl
pkg:deb/ubuntu/xterm@353-1ubuntu1.20.04.2?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
353-1ubuntu1.20.04.2

Affected versions

Other

348-2ubuntu1
353-1ubuntu1

Ecosystem specific 

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_version": "353-1ubuntu1.20.04.2",
            "binary_name": "xterm"
        }
    ]
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:20.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-27135",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}