CVE-2023-3138

Katalog CVE

CVSS 7.5 · High EPSS 1,7%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada x.org libx11, redhat enterprise linux. Skor CVSS 3.1 7.5 (High) menurut NVD.

Deskripsi (NVD)

A vulnerability was found in libX11. The security flaw occurs because the functions in src/InitExt.c in libX11 do not check that the values provided for the Request, Event, or Error IDs are within the bounds of the arrays that those functions write to, using those IDs as array indexes. They trust that they were called with values provided by an Xserver adhering to the bounds specified in the X11 protocol, as all X servers provided by X.Org do. As the protocol only specifies a single byte for these values, an out-of-bounds value provided by a malicious server (or a malicious proxy-in-the-middle) can only overwrite other portions of the Display structure and not write outside the bounds of the Display structure itself, possibly causing the client to crash with this memory corruption.

Rincian

Terbit di NVD

28 Juni 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CWE-787: Out-of-bounds Write

EPSS (30 hari)

1,7% peluang dieksploitasi; lebih tinggi dari 75,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://gitlab.freedesktop.org/xorg/lib/libx11/-/commit/304a654a0d57bf0f00d8998185f0360332cfa36c patch
• https://lists.x.org/archives/xorg-announce/2023-June/003406.html mailing list · patch
• https://lists.x.org/archives/xorg-announce/2023-June/003407.html mailing list · patch
• https://access.redhat.com/security/cve/CVE-2023-3138 advisory pihak ketiga
• https://security.netapp.com/advisory/ntap-20231208-0008/