CVE-2023-3603

Katalog CVE

CVSS 6.5 · Medium EPSS 0,90%

Kerentanan NULL Pointer Dereference pada libssh. Skor CVSS 3.1 6.5 (Medium) menurut NVD.

Deskripsi (NVD)

A missing allocation check in sftp server processing read requests may cause a NULL dereference on low-memory conditions. The malicious client can request up to 4GB SFTP reads, causing allocation of up to 4GB buffers, which was not being checked for failure. This will likely crash the authenticated user's sftp server connection (if implemented as forking as recommended). For thread-based servers, this might also cause DoS for legitimate users. Given this code is not in any released versions, no security releases have been issued.

Rincian

Terbit di NVD

21 Juli 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-476: NULL Pointer Dereference

EPSS (30 hari)

0,90% peluang dieksploitasi; lebih tinggi dari 58,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://access.redhat.com/security/cve/CVE-2023-3603 advisory pihak ketiga
• https://bugzilla.redhat.com/show_bug.cgi?id=2221791 issue tracking · advisory pihak ketiga