CVE-2024-12085: A flaw was found in rsync which could be triggered when rsync compares file checksums

This week

HIGH 7.5REMOTEWATCHLISTUPGRADEDOWNGRADEDOWNGRADE

CVE-2024-12085 is a high-severity flaw (CVSS 7.5) affecting rsync, openshift, openshift container platform. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time.

Why this priority

High severity
EPSS top 5%: very likely to be exploited
Public exploit reference
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	8.6% (top 5%)
CISA exploited list	No
Weakness	CWE-908
Published	2025-01-14
Last modified	2026-10-13

Publisher (CNA): Red Hat, Inc. · Vendor: redhat · samba

Last updated 2026-10-13 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-01-14 18:15 UTCPublished CVE record published
2026-10-13 03:16 UTCUpdated Record last modified

samba rsync UPGRADE

Affected: < 3.3.0

Fixed in: 3.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy rsync || rpm -q rsync || rsync --version

2. UPGRADE to 3.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rsync

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rsync

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

redhat openshift DOWNGRADE

Affected: 5.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 5.0

1. Check installed version

apt-cache policy openshift || rpm -q openshift || openshift --version

2. No fixed release: DOWNGRADE to a release before 5.0 (Debian / Ubuntu)

apt-cache madison openshift sudo apt install openshift=<VERSION_BEFORE_5.0> sudo apt-mark hold openshift

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openshift sudo dnf downgrade openshift-<VERSION_BEFORE_5.0> sudo dnf versionlock add openshift

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat openshift container platform DOWNGRADE

Affected: 4.12 · 4.13 · 4.14 · 4.15 · 4.16 · 4.17

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.12

1. Check installed version

apt-cache policy openshift-container-platform || rpm -q openshift-container-platform || openshift-container-platform --version

2. No fixed release: DOWNGRADE to a release before 4.12 (Debian / Ubuntu)

apt-cache madison openshift-container-platform sudo apt install openshift-container-platform=<VERSION_BEFORE_4.12> sudo apt-mark hold openshift-container-platform

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list openshift-container-platform sudo dnf downgrade openshift-container-platform-<VERSION_BEFORE_4.12> sudo dnf versionlock add openshift-container-platform

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

redhat enterprise linux MITIGATE

Affected: 8.0 · 9.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux eus MITIGATE

Affected: 8.8 · 9.2 · 9.4 · 9.6

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.8

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

redhat enterprise linux for arm 64 MITIGATE

Affected: 8.0_aarch64 · 9.0_aarch64 · 9.2_aarch64

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.0_aarch64

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Exact fixes by distribution

A distro patch exists: prefer upgrading over downgrading.

Fedora 46 · opensips · FIXED · 4.0.3-1.fc46 · FEDORA-2026-6700a0026c · source

sudo dnf upgrade --advisory=FEDORA-2026-6700a0026c

Fedora ELN · ibus-typing-booster · FIXED · 2.31.3-1.eln159 · FEDORA-2026-c895c68d60 · source

sudo dnf upgrade --advisory=FEDORA-2026-c895c68d60

Ubuntu 24.10 · rsync · FIXED · 3.3.0-1ubuntu0.1

sudo apt update && sudo apt install --only-upgrade rsync dpkg --compare-versions "$(dpkg-query -W -f='${Version}' rsync)" ge "3.3.0-1ubuntu0.1" && echo PATCHED || echo STILL-VULNERABLE

Ubuntu 20.04 · rsync · FIXED · 3.1.3-8ubuntu0.8

sudo apt update && sudo apt install --only-upgrade rsync dpkg --compare-versions "$(dpkg-query -W -f='${Version}' rsync)" ge "3.1.3-8ubuntu0.8" && echo PATCHED || echo STILL-VULNERABLE

Ubuntu 22.04 · rsync · FIXED · 3.2.7-0ubuntu0.22.04.3

sudo apt update && sudo apt install --only-upgrade rsync dpkg --compare-versions "$(dpkg-query -W -f='${Version}' rsync)" ge "3.2.7-0ubuntu0.22.04.3" && echo PATCHED || echo STILL-VULNERABLE

Ubuntu 24.04 · rsync · FIXED · 3.2.7-1ubuntu1.1

sudo apt update && sudo apt install --only-upgrade rsync dpkg --compare-versions "$(dpkg-query -W -f='${Version}' rsync)" ge "3.2.7-1ubuntu1.1" && echo PATCHED || echo STILL-VULNERABLE

Debian 12 · rsync · FIXED · 3.2.7-1+deb12u1

sudo apt update && sudo apt install --only-upgrade rsync dpkg --compare-versions "$(dpkg-query -W -f='${Version}' rsync)" ge "3.2.7-1+deb12u1" && echo PATCHED || echo STILL-VULNERABLE

Debian 13 · rsync · FIXED · 3.3.0+ds1-3

sudo apt update && sudo apt install --only-upgrade rsync dpkg --compare-versions "$(dpkg-query -W -f='${Version}' rsync)" ge "3.3.0+ds1-3" && echo PATCHED || echo STILL-VULNERABLE

RHEL 10 · rsync · FIXED · rsync-3.4.1-2.el10

sudo dnf upgrade --advisory=RHBA-2025:6470 rpm -q rsync

RHEL 6 Extended Lifecycle Support - EXTENSION · rsync · FIXED · rsync-3.0.6-12.el6_10.1

sudo dnf upgrade --advisory=RHSA-2025:0849 rpm -q rsync

RHEL 7 Extended Lifecycle Support · rsync · FIXED · rsync-3.1.2-12.el7_9.1

sudo dnf upgrade --advisory=RHSA-2025:0714 rpm -q rsync

RHEL 8 · rsync · FIXED · rsync-3.1.3-20.el8_10

sudo dnf upgrade --advisory=RHSA-2025:0325 rpm -q rsync

RHEL 8.2 Advanced Update Support · rsync · FIXED · rsync-3.1.3-7.el8_2.3

sudo dnf upgrade --advisory=RHSA-2025:0884 rpm -q rsync

Alpine 3.20 · rsync · FIXED · rsync-3.4.0-r0

apk add --upgrade rsync apk info -v rsync

Alpine 3.21 · rsync · FIXED · rsync-3.4.0-r0

apk add --upgrade rsync apk info -v rsync

Alpine 3.22 · rsync · FIXED · rsync-3.4.0-r0

apk add --upgrade rsync apk info -v rsync

Alpine 3.23 · rsync · FIXED · rsync-3.4.0-r0

apk add --upgrade rsync apk info -v rsync

Amazon Linux 2023 · see advisory · FIXED · ALAS2023-2025-801 · source

sudo dnf update --advisory=ALAS2023-2025-801

Amazon Linux 2 · see advisory · FIXED · ALAS2-2025-2731 · source

sudo yum update --advisory=ALAS2-2025-2731

Amazon Linux 1 · see advisory · FIXED · ALAS-2025-1955 · source

sudo yum update --advisory=ALAS-2025-1955

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

GitHub PoC: Otsutez/cve-2024-12085 (0 stars)
Write-up: github.com/google/security-research/security/advisories/GHSA-p5pg-x43v-mvqj

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-12085?

rsync: upgrade to 3.3.0; openshift: downgrade or apply the listed mitigation; openshift container platform: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-12085 being exploited?

CVE-2024-12085 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-12085 affect?

CVE-2024-12085 affects rsync, openshift, openshift container platform. Severity is high (CVSS 7.5). A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length (s2length) to cause a comparison between a checksum and uninitialized memory and leak one

How urgent is CVE-2024-12085?

Priority 65/100. High severity; EPSS top 5%: very likely to be exploited; Public exploit reference; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Samba vulnerabilities · Red Hat OpenShift vulnerabilities

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References

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