CVE-2024-12084

high-risk
Published 2025-01-15

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.

Do I need to act?

~
3.5% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10 Critical
NETWORK / LOW complexity

Affected Products (10)

Rsync
Rsync
Arch Linux
Linux
Nixos
Nixos
Suse Linux
Smartos

Affected Vendors

Novell Redhat Samba Gentoo Nixos Archlinux Almalinux Tritondatacenter

References (8)

https://access.redhat.com/errata/RHBA-2025:6470
Third Party Advisory https://access.redhat.com/security/cve/CVE-2024-12084
Issue Tracking https://bugzilla.redhat.com/show_bug.cgi?id=2330527
Third Party Advisory https://kb.cert.org/vuls/id/952657
Mailing List http://www.openwall.com/lists/oss-security/2025/01/14/6
https://security.netapp.com/advisory/ntap-20250131-0002/
https://www.kb.cert.org/vuls/id/952657
Exploit https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-m...
55
/ 100
high-risk
Severity 32/34 · Critical
Exploitability 7/34 · Low
Exposure 16/34 · Moderate