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CVE Record

CVE-2025-8283: Netavark: podman: netavark may resolve hostnames to unexpected hosts

A vulnerability was found in the netavark package, a network stack for containers used with Podman. Due to dns.podman search domain being removed, netavark may return external servers if a valid A/AAAA record is sent as a response. When creating a container with a given name, this name will be used as the hostname for the container itself, as the podman's search domain is not added anymore the container is using the host's resolv.conf, and the DNS resolver will try to look into the search domains contained on it. If one of the domains contain a name with the same hostname as the running container, the connection will forward to unexpected external servers.

LowCVSS 3.7Not KEV-listedUpdated
Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

Podman containers using affected Netavark packages may resolve their own hostname to an unintended external server. This requires a hostname collision within a DNS search domain inherited from the host. The likely impact is limited disclosure of traffic or data sent to the wrong destination.

Executive priority

Treat this as routine remediation rather than an emergency. Prioritize environments handling sensitive outbound traffic or using broad, externally controlled DNS search domains. Confirm exposure and schedule vendor-approved updates through normal patching processes.

Technical view

Removal of the dns.podman search domain causes containers to use search domains from the host's resolv.conf. If a search domain provides an A or AAAA record matching the container hostname, resolution can select that external address. CVSS 3.1 is 3.7, reflecting network reachability, high attack complexity, and limited confidentiality impact.

Likely exposure

Exposure is limited to listed affected Netavark or container-tools packages on RHEL 8, 9, 10, and OpenShift 4. A practical risk requires inherited DNS search domains and a record matching a container hostname. Exact affected and fixed package versions are not supplied.

Exploitation context

The bundle provides no evidence of active exploitation, and the CVE is not listed in KEV. Exploitation requires specific DNS search-domain and hostname conditions, consistent with the high-complexity CVSS assessment. No privileges or user interaction are indicated.

Researcher notes

The issue is a DNS resolution and configuration interaction classified as CWE-15. The supplied data lists several Red Hat packages as affected but does not identify exact vulnerable or fixed versions. A generic netavark version 0 entry is marked unaffected, so package-specific vendor guidance should control conclusions.

Mitigation direction

  • Check Red Hat and Netavark guidance for confirmed fixed packages; exact fixed versions are not provided.
  • Apply vendor-approved updates when available through supported RHEL or OpenShift channels.
  • Review host resolv.conf search domains and remove unnecessary or untrusted entries.
  • Avoid container hostnames that collide with records in configured DNS search domains.

Validation and detection

  • Inventory Netavark and container-tools packages across RHEL and OpenShift systems.
  • Identify hosts whose resolv.conf contains DNS search domains inherited by containers.
  • Check whether container hostnames exist as A or AAAA records within those domains.
  • In a controlled environment, verify that container hostname resolution does not return an unexpected external address.
Prepared
Confidence
medium
Sources
5

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-15: 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-2025-8283 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
Low
CVSS
3.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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
1ADP providers
6Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical 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
3.7CVSS 3.1LowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N2.21.4redhat

Vulnerability scoring details

Base CVSS 3.1 score

3.7Low
CVSS 3.1 vector shape for CVE-2025-8283Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/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. Source timelineredhat

    Made public.

  2. Source timelineredhat

    Reported to Red Hat.

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Unknown vendornetavarknetavark, 0unaffected
Red HatRed Hat Enterprise Linux 10netavarkaffected
Red HatRed Hat Enterprise Linux 8container-tools:rhel8/containers-commonaffected
Red HatRed Hat Enterprise Linux 8container-tools:rhel8/netavarkaffected
Red HatRed Hat Enterprise Linux 9netavarkaffected
Red HatRed Hat OpenShift Container Platform 4openshift/ose-rhel-coreos-9affected
Weakness

CWE details

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

CWE-15 · source CWE mapping

External Control of System or Configuration Setting

External Control of System or Configuration Setting represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.