Buffer overflow in Archlinux Arch Linux
CVE-2024-12084
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.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.725 (99.4th percentile), scored .
High probability of exploitation in the next 30 days — patch promptly. 99th percentile — 99.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.721 · newest: 0.725 · change: +0.005
Affected products
- Archlinux Arch Linux
- Gentoo Linux
- Nixos — versions 24.11
- Novell SUSE Linux
- Samba Rsync — versions 3.2.7, 3.3.0
- Tritondatacenter Smartos
- Almalinux — versions 10.0
- Red Hat Enterprise Linux 10 — versions 0:3.4.1-2.el10
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- access.redhat.com/errata/RHBA-2025:6470 (vendor-advisory)
- access.redhat.com/security/cve/CVE-2024-12084 (Third Party Advisory, vdb-entry)
- bugzilla.redhat.com/show_bug.cgi (issue-tracking, Third Party Advisory, Issue Tracking)
- kb.cert.org/vuls/id/952657 (Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108 (Mailing List, Third Party Advisory)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Exploit, Vendor Advisory)
Frequently asked questions
- What is CVE-2024-12084?
- CVE-2024-12084 is a critical-severity vulnerability in Archlinux Arch Linux, classified under Heap-based Buffer Overflow. CVSS score: 9.8/10. Published 2025-01-15.
- How severe is CVE-2024-12084?
- Critical severity. CVSS v3 base score is 9.8 out of 10.
- Is CVE-2024-12084 known to be exploited?
- 9 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.