USN-5156-1

Source
https://ubuntu.com/security/notices/USN-5156-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5156-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/USN-5156-1
Upstream
Related
Published
2021-11-24T17:26:57.836530Z
Modified
2025-10-13T04:35:41Z
Summary
A security issue was fixed in ICU
Details

It was discovered that ICU contains a double free issue. An attacker could use this issue to cause a denial of service or possibly execute arbitrary code.

References

Affected packages

Ubuntu:20.04:LTS / icu

Package

Name
icu
Purl
pkg:deb/ubuntu/icu@66.1-2ubuntu2.1?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
66.1-2ubuntu2.1

Affected versions

63.*

63.2-2

65.*

65.1-1ubuntu2

66.*

66.1-2ubuntu2

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "icu-devtools",
            "binary_version": "66.1-2ubuntu2.1"
        },
        {
            "binary_name": "libicu-dev",
            "binary_version": "66.1-2ubuntu2.1"
        },
        {
            "binary_name": "libicu66",
            "binary_version": "66.1-2ubuntu2.1"
        }
    ]
}

Database specific

cves_map

{
    "cves": [
        {
            "id": "CVE-2021-30535",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ]
        }
    ],
    "ecosystem": "Ubuntu:20.04:LTS"
}