CVE-2024-12084 CRITICAL

CVE-2024-12084: Rsync: heap buffer overflow in rsync due to improper checksum length handling

Vendor Red Hat
Product Red Hat Enterprise Linux 6
Weakness CWE-122
Published January 15, 2025
Last update February 26, 2026
View on NVD All CVEs

CVSS base score

9.8/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

What the vulnerability does

01Description

A heap-based buffer overflow flaw was found in the rsync daemon. This issue is due to improper handling of attacker-controlled checksum lengths (s2length) in the code. When MAX_DIGEST_LEN exceeds the fixed SUM_LENGTH (16 bytes), an attacker can write out of bounds in the sum2 buffer.

Key dates

02Disclosure timeline

January 15, 2025 CVE published
February 26, 2026 Record updated