9.8 Critical

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

Description

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.

CVSS 3.1 detail

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

Exploitable remotely over the network, without an account and without any user action; an attacker can seriously compromise confidentiality, integrity or availability.

Attack vector: Network
Attack complexity: Low
Privileges required: None
Interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: High
Availability: High

Affected products and versions

Product	Affected versions	Fixed in
Red Hat Enterprise Linux 10	Versions not published
Red Hat Enterprise Linux 6	Versions not published
Red Hat Enterprise Linux 7	Versions not published
Red Hat Enterprise Linux 8	Versions not published
Red Hat Enterprise Linux 9	Versions not published
Red Hat OpenShift Container Platform 4	Versions not published
Red Hat In-Vehicle Operating System 1	Versions not published

References

RHBA-2025:6470 access.redhat.com
access.redhat.com access.redhat.com
RHBZ#2330527 bugzilla.redhat.com
kb.cert.org kb.cert.org

Timeline

Published January 15, 2025
Last modified November 4, 2026

The 1455 CVEs of Red Hat Enterprise Linux 10 →

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