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CVE-2024-12084

critical

A heap-based buffer overflow flaw was found in the rsync daemon.

Vendor / product: Samba — rsync

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
9.8
9.8 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2025-01-15 15:15
Modified: 2026-11-04 21:17
NVD status: Modified
Last synced 5 hours ago
Verified against the source API 2026-11-04 21:37 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

samba / rsync 3.2.7, 3.3.0
almalinux / almalinux 10.0
archlinux / arch_linux all versions
gentoo / linux all versions
nixos / nixos <24.11, 24.11
novell / suse_linux all versions
tritondatacenter / smartos <20250123
redhat / enterprise_linux 10.0

Weakness classification (CWE)

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

Vendor advisory: https://github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj

References

Data sources

NVD CVE API 2.0 — fetched 2026-11-04 21:37 UTC · record ↗

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