USN-5965-1

It was discovered that TigerVNC mishandled TLS certificate exceptions. An attacker could use this vulnerability to impersonate any server after a client had added an exception and obtain sensitive information.

References

Affected packages

Ubuntu:Pro:20.04:LTS / tigervnc

Package

Name: tigervnc
Purl: pkg:deb/ubuntu/tigervnc@1.10.1+dfsg-3ubuntu0.1+esm2?arch=source&distro=esm-apps/focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

1.10.1+dfsg-3ubuntu0.1+esm2

Affected versions

1.*

1.9.0+dfsg-3

1.9.0+dfsg-4

1.10.1+dfsg-1

1.10.1+dfsg-2

1.10.1+dfsg-3

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "tigervnc-common",
            "binary_version": "1.10.1+dfsg-3ubuntu0.1+esm2"
        },
        {
            "binary_name": "tigervnc-scraping-server",
            "binary_version": "1.10.1+dfsg-3ubuntu0.1+esm2"
        },
        {
            "binary_name": "tigervnc-standalone-server",
            "binary_version": "1.10.1+dfsg-3ubuntu0.1+esm2"
        },
        {
            "binary_name": "tigervnc-viewer",
            "binary_version": "1.10.1+dfsg-3ubuntu0.1+esm2"
        },
        {
            "binary_name": "tigervnc-xorg-extension",
            "binary_version": "1.10.1+dfsg-3ubuntu0.1+esm2"
        }
    ],
    "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro"
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/usn/USN-5965-1.json"

cves_map

{
    "ecosystem": "Ubuntu:Pro:20.04:LTS",
    "cves": [
        {
            "severity": [
                {
                    "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N",
                    "type": "CVSS_V3"
                },
                {
                    "score": "medium",
                    "type": "Ubuntu"
                }
            ],
            "id": "CVE-2020-26117"
        }
    ]
}