USN-5080-2

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Source
https://ubuntu.com/security/notices/USN-5080-2
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5080-2.json
JSON Data
https://api.osv.dev/v1/vulns/USN-5080-2
Upstream
Related
Published
2021-09-16T16:07:21.304965Z
Modified
2025-10-13T04:35:37Z
Summary
libgcrypt20 vulnerabilities
Details

USN-5080-1 fixed several vulnerabilities in Libgcrypt. This update provides the corresponding update for Ubuntu 16.04 ESM.

Original advisory details:

It was discovered that Libgcrypt incorrectly handled ElGamal encryption. An attacker could possibly use this issue to recover sensitive information.

References

Affected packages

Ubuntu:Pro:16.04:LTS / libgcrypt20

Package

Name
libgcrypt20
Purl
pkg:deb/ubuntu/libgcrypt20@1.6.5-2ubuntu0.6+esm1?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
1.6.5-2ubuntu0.6+esm1

Affected versions

1.*

1.6.3-2ubuntu1
1.6.4-3
1.6.4-4
1.6.4-5
1.6.5-2
1.6.5-2ubuntu0.2
1.6.5-2ubuntu0.3
1.6.5-2ubuntu0.4
1.6.5-2ubuntu0.5
1.6.5-2ubuntu0.6

Ecosystem specific 

{
    "binaries": [
        {
            "binary_version": "1.5.4-3+really1.6.5-2ubuntu0.6+esm1",
            "binary_name": "libgcrypt11-dev"
        },
        {
            "binary_version": "1.6.5-2ubuntu0.6+esm1",
            "binary_name": "libgcrypt20"
        },
        {
            "binary_version": "1.6.5-2ubuntu0.6+esm1",
            "binary_name": "libgcrypt20-dev"
        }
    ],
    "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:Pro:16.04:LTS",
    "cves": [
        {
            "id": "CVE-2021-33560",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "low"
                }
            ]
        },
        {
            "id": "CVE-2021-40528",
            "severity": [
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "CVSS_V3",
                    "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"
                },
                {
                    "type": "Ubuntu",
                    "score": "medium"
                }
            ]
        }
    ]
}