USN-5431-1

It was discovered that GnuPG was not properly processing keys with large amounts of signatures. An attacker could possibly use this issue to cause a denial of service.

References

Affected packages

Ubuntu:18.04:LTS / gnupg2

Package

Name: gnupg2
Purl: pkg:deb/ubuntu/gnupg2@2.2.4-1ubuntu1.5?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

2.2.4-1ubuntu1.5

Affected versions

2.*

2.1.15-1ubuntu8

2.2.4-1ubuntu1

2.2.4-1ubuntu1.1

2.2.4-1ubuntu1.2

2.2.4-1ubuntu1.3

2.2.4-1ubuntu1.4

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "dirmngr",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gnupg",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gnupg-agent",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gnupg-l10n",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gnupg-utils",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gnupg2",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpg",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpg-agent",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpg-wks-client",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpg-wks-server",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpgconf",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpgsm",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpgv",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpgv-static",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpgv-win32",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "gpgv2",
            "binary_version": "2.2.4-1ubuntu1.5"
        },
        {
            "binary_name": "scdaemon",
            "binary_version": "2.2.4-1ubuntu1.5"
        }
    ],
    "availability": "No subscription required"
}

Database specific

cves_map

{
    "ecosystem": "Ubuntu:18.04:LTS",
    "cves": [
        {
            "id": "CVE-2019-13050",
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                    "type": "CVSS_V3"
                },
                {
                    "score": "low",
                    "type": "Ubuntu"
                }
            ]
        }
    ]
}

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5431-1.json"