CVE-2020-28049

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Source
https://cve.org/CVERecord?id=CVE-2020-28049
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28049.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2020-28049
Downstream
Related
Published
2020-11-04T19:15:12.137Z
Modified
2026-07-08T05:54:19.168735273Z
Severity
  • 6.3 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
Summary
[none]
Details

An issue was discovered in SDDM before 0.19.0. It incorrectly starts the X server in a way that - for a short time period - allows local unprivileged users to create a connection to the X server without providing proper authentication. A local attacker can thus access X server display contents and, for example, intercept keystrokes or access the clipboard. This is caused by a race condition during Xauthority file creation.

Database specific 
{
    "unresolved_ranges": [
        {
            "vendor_product": "debian:debian_linux",
            "cpes": [
                "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
                "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "9.0"
                },
                {
                    "last_affected": "9.0"
                },
                {
                    "introduced": "10.0"
                },
                {
                    "last_affected": "10.0"
                }
            ]
        },
        {
            "vendor_product": "fedoraproject:fedora",
            "cpes": [
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*"
            ],
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "33"
                },
                {
                    "last_affected": "33"
                }
            ]
        },
        {
            "vendor_product": "opensuse:leap",
            "cpes": [
                "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                "cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*"
            ],
            "extracted_events": [
                {
                    "introduced": "15.1"
                },
                {
                    "last_affected": "15.1"
                },
                {
                    "introduced": "15.2"
                },
                {
                    "last_affected": "15.2"
                }
            ],
            "source": "CPE_STRING"
        }
    ]
}
References

Affected packages

Git / github.com/sddm/sddm

Affected ranges

Type
GIT
Repo
https://github.com/sddm/sddm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
c5e7043291a6d237e33c2f666d9937c93d668594
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:sddm_project:sddm:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.19.0"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v0.*
v0.1.0
v0.11.0
v0.12.0
v0.13.0
v0.14.0
v0.17.0
v0.18.0
v0.8.99
v0.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2020-28049.json"