CVE-2020-28049

Katalog CVE

CVSS 6.3 · Medium EPSS 0,42%

Kerentanan Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') pada sddm project sddm, opensuse leap +2 lainnya. Skor CVSS 3.1 6.3 (Medium) menurut NVD.

Deskripsi (NVD)

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.

Rincian

Terbit di NVD

4 November 2020

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

6.3 (Medium), sumber NVD
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

EPSS (30 hari)

0,42% peluang dieksploitasi; lebih tinggi dari 34,1% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00031.html mailing list · advisory pihak ketiga
• https://bugzilla.suse.com/show_bug.cgi?id=CVE-2020-28049 exploit · issue tracking · advisory pihak ketiga
• https://github.com/sddm/sddm/blob/v0.19.0/ChangeLog release notes · advisory pihak ketiga
• https://github.com/sddm/sddm/releases release notes · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2020/11/msg00009.html mailing list · advisory pihak ketiga
• https://www.debian.org/security/2020/dsa-4783 advisory pihak ketiga
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GT3EX5NSQJJAK...
• https://security.gentoo.org/glsa/202402-02