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CVE Record

CVE-2024-12085: Rsync: info leak via uninitialized stack contents

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.

HighCVSS 7.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2024-12085 is an rsync information leak. A remote attacker may cause rsync to compare checksums against uninitialized stack memory, leaking small pieces of memory one byte at a time. The main business concern is confidentiality exposure on systems using affected rsync packages, especially where rsync is reachable over a network.

Executive priority

Patch in the normal high-severity security window, faster for exposed rsync services or sensitive environments. This is primarily a data confidentiality risk, not a ransomware-style availability issue. Lack of KEV evidence lowers emergency urgency, but network reachability and no-auth CVSS characteristics justify prompt remediation.

Technical view

The flaw is CWE-908 in rsync checksum comparison handling. Manipulating checksum length, identified as s2length, can trigger comparison with uninitialized stack contents and disclose one byte per interaction. CVSS 3.1 is 7.5: network reachable, low complexity, no privileges, no user interaction, high confidentiality impact, no integrity or availability impact.

Likely exposure

Exposure is most relevant to Red Hat Enterprise Linux 6 ELS, 7 ELS, 8, 9, 10, and listed OpenShift/RHCOS releases carrying affected rsync packages. Internet- or partner-facing rsync services deserve priority review. Non-Red Hat exposure is not established by the provided sources.

Exploitation context

The CVE record describes remote, unauthenticated exploitation characteristics by CVSS. The provided bundle does not show CISA KEV listing or cited evidence of active exploitation. Treat this as a serious confidentiality issue, but do not assume confirmed in-the-wild exploitation from these sources alone.

Researcher notes

The provided detail is enough to classify the bug as an uninitialized stack disclosure during checksum comparison. Sources do not provide safe reproducer details, fixed upstream version boundaries, or evidence of exploitation. Validate exposure through package provenance and vendor errata rather than assuming all rsync deployments are affected.

Mitigation direction

  • Apply the relevant Red Hat security or bug-fix errata for affected RHEL and OpenShift assets.
  • Prioritize externally reachable rsync services and systems handling sensitive data.
  • If no listed erratum applies, check the operating system or appliance vendor guidance.
  • Restrict rsync network exposure where business operations allow.
  • Review authentication and access controls around rsync services.

Validation and detection

  • Inventory systems with rsync installed, including RHEL, RHCOS, and OpenShift nodes.
  • Map package versions to the affected Red Hat product list and errata.
  • Confirm applicable vendor errata have been installed successfully.
  • Identify rsync services reachable from untrusted networks.
  • Monitor vendor advisories for updated affected-version and fix information.
Prepared
Confidence
medium
Sources
12

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-908: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Container behavior lookup

The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-12085 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
7.5 (3.1)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
5Timeline events
2ADP providers
29Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: pocAutomatable: yesTechnical Impact: partial

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
7.5CVSS 3.1HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N3.93.6redhat

Vulnerability scoring details

Base CVSS 3.1 score

7.5High
CVSS 3.1 vector shape for CVE-2024-12085Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. Source timelineredhat

    Reported to Red Hat.

  3. Source timelineredhat

    Made public.

  4. CVE publishedCVE Program

    The CVE record was published.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendorrsyncrsync, 0unaffected
Red HatRed Hat Enterprise Linux 10rsync, 0:3.4.1-2.el10affected
Red HatRed Hat Enterprise Linux 6 Extended Lifecycle Support - EXTENSIONrsync, 0:3.0.6-12.el6_10.1affected
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle Supportrsync, 0:3.1.2-12.el7_9.1affected
Red HatRed Hat Enterprise Linux 8rsync, 0:3.1.3-20.el8_10affected
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Supportrsync, 0:3.1.3-7.el8_2.3affected
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportrsync, 0:3.1.3-12.el8_4.3affected
Red HatRed Hat Enterprise Linux 8.4 Telecommunications Update Servicersync, 0:3.1.3-12.el8_4.3affected
Red HatRed Hat Enterprise Linux 8.4 Update Services for SAP Solutionsrsync, 0:3.1.3-12.el8_4.3affected
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportrsync, 0:3.1.3-14.el8_6.6affected
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Servicersync, 0:3.1.3-14.el8_6.6affected
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutionsrsync, 0:3.1.3-14.el8_6.6affected
Red HatRed Hat Enterprise Linux 8.8 Extended Update Supportrsync, 0:3.1.3-20.el8_8.1affected
Red HatRed Hat Enterprise Linux 9rsync, 0:3.2.3-20.el9_5.1affected
Red HatRed Hat Enterprise Linux 9rsync, 0:3.2.3-20.el9_5.1affected
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutionsrsync, 0:3.2.3-9.el9_0.3affected
Red HatRed Hat Enterprise Linux 9.2 Extended Update Supportrsync, 0:3.2.3-19.el9_2.1affected
Red HatRed Hat Enterprise Linux 9.4 Extended Update Supportrsync, 0:3.2.3-19.el9_4.1affected
Red HatRed Hat OpenShift Container Platform 4.12rhcos, 412.86.202502100314-0affected
Red HatRed Hat OpenShift Container Platform 4.13rhcos, 413.92.202503112237-0affected
Red HatRed Hat OpenShift Container Platform 4.14rhcos, 414.92.202502111902-0affected
Red HatRed Hat OpenShift Container Platform 4.15rhcos, 415.92.202501281917-0affected
Red HatRed Hat OpenShift Container Platform 4.16openshift4/ose-ansible-rhel9-operator, v4.16.0-202501311735.p0.g2cb0020.assembly.stream.el9affected
Red HatRed Hat OpenShift Container Platform 4.16openshift4/ose-helm-rhel9-operator, v4.16.0-202501311933.p0.g4246d04.assembly.stream.el9affected
Red HatRed Hat OpenShift Container Platform 4.16openshift4/ose-operator-sdk-rhel9, v4.16.0-202501311605.p0.g4246d04.assembly.stream.el9affected
Red HatRed Hat OpenShift Container Platform 4.17rhcos, 417.94.202502051822-0affected
Red HatRHOL-5.8-RHEL-9openshift-logging/cluster-logging-operator-bundle, v5.8.17-22affected
Red HatRHOL-5.8-RHEL-9openshift-logging/cluster-logging-rhel9-operator, v5.8.17-10affected
Red HatRHOL-5.8-RHEL-9openshift-logging/elasticsearch6-rhel9, v6.8.1-454affected
Red HatRHOL-5.8-RHEL-9openshift-logging/elasticsearch-operator-bundle, v5.8.17-17affected
Weakness

CWE details

CWE-908

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-908 · source CWE mapping

Use of Uninitialized Resource

Use of Uninitialized Resource represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs