CVE-2026-43620

Katalog CVE

CVSS 5.5 · Medium EPSS 0,46%

Kerentanan Out-of-bounds Read pada samba rsync. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

Rsync version 3.4.2 and prior contain a receiver-side out-of-bounds array read vulnerability in recv_files() in receiver.c that allows a malicious rsync server to crash the rsync client process. Attackers can exploit the vulnerability by setting CF_INC_RECURSE in compatibility flags and sending a specially crafted file list where the first sorted entry is not the leading dot directory, followed by a transfer record with ndx=0 and an iflag word without ITEM_TRANSFER, causing the receiver to read 8 bytes before the allocated pointer array and dereference an invalid pointer at an unmapped address, resulting in a deterministic SIGSEGV crash of the rsync client.

Rincian

Terbit di NVD

20 Mei 2026

Terakhir diubah

24 Juli 2026

Status NVD

Analyzed

CVSS 3.1

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read

EPSS (30 hari)

0,46% peluang dieksploitasi; lebih tinggi dari 38,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/RsyncProject/rsync/security/advisories/GHSA-28pw-r563-rxvm advisory vendor
• https://www.vulncheck.com/advisories/rsync-out-of-bounds-array-read-via-recv-files advisory pihak ketiga
• https://github.com/RsyncProject/rsync/releases/tag/v3.4.3 release notes