CVE & CISA-KEV Catalog

CVE-2024-12084

CRITICALEPSS 99th pctl
9.8
CVSS v3
NVD

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.

How to fix

Remediation Available
rsyncDebian
Fixed in:3.2.7-1+deb12u1CVE-2024-12084
Fixed in:3.3.0+ds1-3CVE-2024-12084
Fixed in:3.3.0+ds1-3CVE-2024-12084
rsyncRocky
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsyncRed Hat / RHEL
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-daemonRed Hat / RHEL
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-daemonRocky
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-debuginfoRocky
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-debuginfoRed Hat / RHEL
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-debugsourceRed Hat / RHEL
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-debugsourceRocky
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-rrsyncRed Hat / RHEL
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsync-rrsyncRocky
Fixed in:0:3.4.1-2.el10RHBA-2025:6470
rsyncUbuntu
Fixed in:3.1.0-2ubuntu0.4+esm1USN-7206-1
Fixed in:3.1.1-3ubuntu1.3+esm3USN-7206-1
Fixed in:3.1.2-2.1ubuntu1.6+esm1USN-7206-1
Fixed in:3.1.3-8ubuntu0.8USN-7206-1
Fixed in:3.2.7-0ubuntu0.22.04.3USN-7206-1
Fixed in:3.2.7-1ubuntu1.1USN-7206-1

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Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

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

Exploit Intelligence

72.06%probability of exploitation in 30 days
99thpercentile

Very high risk: more likely to be exploited than 99% of all known CVEs.

References

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2015-3113Critical9.8100%KEVFix
CVE-2024-26256High7.888%-Fix
CVE-2020-25687Medium5.987%-Fix
CVE-2009-3459High8.887%KEVFix
CVE-2021-21017High8.886%KEV-
CVE-2020-25683Medium5.986%-Fix
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CVE-2024-12084 severity badge

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-29.