CVE-2023-0494

Katalog CVE

CVSS 7.8 · High EPSS 0,90%

Kerentanan Use After Free pada x.org x server, fedoraproject fedora +16 lainnya. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability was found in X.Org. This issue occurs due to a dangling pointer in DeepCopyPointerClasses that can be exploited by ProcXkbSetDeviceInfo() and ProcXkbGetDeviceInfo() to read and write into freed memory. This can lead to local privilege elevation on systems where the X server runs privileged and remote code execution for ssh X forwarding sessions.

Rincian

Terbit di NVD

27 Maret 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-416: Use After Free

EPSS (30 hari)

0,90% peluang dieksploitasi; lebih tinggi dari 58,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://lists.x.org/archives/xorg-announce/2023-February/003320.html mailing list · advisory vendor
• https://gitlab.freedesktop.org/xorg/xserver/-/commit/0ba6d8c37071131a49790243cdac55392ecf71ec patch
• https://bugzilla.redhat.com/show_bug.cgi?id=2165995 issue tracking · advisory pihak ketiga
• https://security.gentoo.org/glsa/202305-30