High Denial of service

CVE-2024-3056 — Podman: kernel: containers in shared ipc namespace are vulnerable to denial of service attack

A flaw was found in Podman. This issue may allow an attacker to create a specially crafted container that, when configured to share the same IPC with at least one other container, can create a large number of IPC resources in /dev/shm. The malicious container will continue to exhaust resources until it is out-of-memory (OOM) killed. While the malicious container's cgroup will be removed, the IPC resources it created are not. Those resources are tied to the IPC namespace that will not be removed until all containers using it are stopped, and one non-malicious container is holding the namespace open. The malicious container is restarted, either automatically or by attacker control, repeating the process and increasing the amount of memory consumed. With a container configured to restart always, such as `podman run --restart=always`, this can result in a memory-based denial of service of the system.

Published Aug 2, 2024 · Updated Oct 29, 2026 · Sources: NIST National Vulnerability Database, CVE Program (cve.org) e CISA ADP, GitHub Security Advisories · CNA: redhat

Low

Who exploits it and how urgent it is

A 0–100 score combining confirmed exploitation, ransomware and APT use, public exploits, EPSS and severity.

No exploitation signal in the sources consulted so far.

How the score was calculated

EPSS 0.5% (30-day exploitation probability)+7
Technical severity (high)+6

The score orders the patch queue; it does not replace your asset context (internet exposure, criticality, compensating controls).

Triage

Is it exploited, how likely is exploitation, what does it touch, and how severe do the sources call it.

Exploitation

Not confirmed

Not in CISA KEV — an absence of record, not proof it is unexploited.

EPSS FIRST

0.53%

ahead of 45% of scored CVEs · Oct 29, 2026

Affects

Fedoraproject

Fedora and 11 more

CVSS base

7.7

High · 4 source(s)

CISA SSVC assessment CISA

Three decision points CISA publishes for the CVEs it assesses (SSVC 2.0.3). A stakeholder decision, not a severity score.

Exploitation

None

none · proof-of-concept · active

Automatable

can an attacker script the kill-chain steps

Technical impact

Partial

partial · total control of the vulnerable component

Remediation

Fixes and mitigations documented by the sources — linked to the original advisory.

No fix documented by the sources we poll. That does not mean none exists: check the vendor advisory.

First 24 hours

Ordered from the record’s own fields — exposure first, because you cannot patch what you have not found. A rule-generated starting point.

Identify exposed assets running the affected vendor/product/version combinations (Fedoraproject Fedora, Podman Project Podman, Red Hat Enterprise Linux…).
No fix documented in the sources: reduce exposure and monitor the vendor advisory.
Exploitation requires user interaction: tighten email/web filtering and warn affected users.
Search available logs for exploit probes matching the vulnerability class (denial of service), errors and authentication anomalies.

Affected scope

Vendor, product and versions as the sources word them.

Vendor	Product	Versions	Status	Source
Fedoraproject	Fedora	version 40	Vulnerable	NIST National Vulnerability Database
Podman Project	Podman	≤ 5.2.0	Vulnerable	NIST National Vulnerability Database
Red Hat	Enterprise Linux	version 8.0version 9.0	Vulnerable	NIST National Vulnerability Database
Red Hat	Openshift Container Platform	version 4.0	Vulnerable	NIST National Vulnerability Database
Red Hat	Red Hat Enterprise Linux 10	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Enterprise Linux 8	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Red Hat	Red Hat Enterprise Linux 9	versions not specified by the source	Vulnerable	CVE Program (cve.org) e CISA ADP
Go	Github.com/containers/podman	≤ 5.2.0	Vulnerable	GitHub Security Advisories
Go	Github.com/containers/podman/v2	≤ 5.2.0	Vulnerable	GitHub Security Advisories
Go	Github.com/containers/podman/v3	≤ 5.2.0	Vulnerable	GitHub Security Advisories
Go	Github.com/containers/podman/v4	≤ 5.2.0	Vulnerable	GitHub Security Advisories
Go	Github.com/containers/podman/v5	≤ 5.2.0	Vulnerable	GitHub Security Advisories

Attack characteristics

The CVSS vector, decoded. It describes the attack, not your exposure to it.

Attack vector

Network

Attack complexity

High

Privileges required

Low

User interaction

Required

Scope

Changed

Confidentiality

High

Integrity

None

Availability

High

Every base score collected

Sources score independently and may disagree; each row says who scored it and under which version.

Score	Version	Severity	Expl.	Impact	Scored by
7.7	CVSS 3.1	High	1.3	5.8	secalert@redhat.com via NIST National Vulnerability Database
7.7	CVSS 3.1	High	—	—	redhat via CVE Program (cve.org) e CISA ADP
4.8	CVSS 3.1	Medium	1.2	3.6	nvd@nist.gov via NIST National Vulnerability Database
4.8	CVSS 3.1	Medium	—	—	GitHub, Inc. via GitHub Security Advisories

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/A:H (score shown at the top: secalert@redhat.com)

Scoring entities (NIST, CNA, ADP) score independently; each score is shown with its origin. For prioritization we use 7.7 (secalert@redhat.com via NIST National Vulnerability Database) as a conservative provisional reference — not a definitive official score.

Weakness MITRE

Weakness class according to MITRE’s CWE catalog.

CWE-400 · Uncontrolled Resource Consumption

Other CVEs with this weakness →

EPSS over time FIRST

Oct 28, 2026 → Oct 29, 2026 · 2 reading(s) · max 0.55%

Detection

Read off the CVSS vector and the weakness class. Starting points, not tested rules.

Prioritize edge telemetry for the network-reachable component (proxy, WAF, IDS/IPS).
Track CPU/memory spikes and availability drops correlated with request patterns.

web/proxy/WAF logsnetwork IDS/IPSresource metrics

Timeline

What happened to this CVE, newest first.

2026
Affected products added · go/github.com/containers/podman/v5, go/github.com/containers/podman, go/github.com/containers/podman/v2, go/github.com/c
Oct 29, 2026 · GitHub Security Advisories
Affected products added · red hat/red hat enterprise linux 10, red hat/red hat enterprise linux 8, red hat/red hat enterprise linux 9
Oct 29, 2026 · CVE Program (cve.org) e CISA ADP
SSVC assessment updated
Oct 29, 2026 · CVE Program (cve.org) e CISA ADP
Record published
Oct 29, 2026
Affected products added · podman project/podman, redhat/openshift container platform, redhat/enterprise linux, fedoraproject/fedora
Oct 29, 2026 · NIST National Vulnerability Database
CVSS changed · 7.7
Oct 29, 2026 · NIST National Vulnerability Database
Source status changed · → Modified
Oct 29, 2026 · NIST National Vulnerability Database
Record created in this database
Oct 29, 2026 · Alertas do Telegram
2024
CVE published
Aug 2, 2024 · redhat

Source activity

Repeated readings are counted rather than listed.

2× References added · Oct 29, 2026 – Oct 29, 2026
1× Official description updated · Oct 29, 2026 – Oct 29, 2026

References

7 on the record

access.redhat.com/security/cve/CVE-2024-3056
Third Party Advisory, Vendor Advisory, vdb-entry, x_refsource_REDHAT, NIST National Vulnerability Database
github.com/advisories/GHSA-rpcc-p8xm-rc6p
GitHub Security Advisories
security.netapp.com/advisory/ntap-20241227-0002/
NIST National Vulnerability Database
security.netapp.com/advisory/ntap-20241227-0002
GitHub Security Advisories
nvd.nist.gov/vuln/detail/CVE-2024-3056
GitHub Security Advisories
pkg.go.dev/vuln/GO-2024-3042
GitHub Security Advisories
bugzilla.redhat.com/show_bug.cgi
Issue Tracking, issue-tracking, x_refsource_REDHAT, NIST National Vulnerability Database

Elsewhere on this site

Fedoraproject
every CVE for this vendor

Denial of service
same class

CWE-400
other pages naming this weakness

Related CVEs (same products)

High CVE-2026-119777 Gstreamer1-plugins-bad-free: gstreamer1-plugins-bad-free: stack buffer overflow in h.266/vvc parser 32m
High CVE-2026-119528 Gimp: gimp: stack buffer overflow in psd image resource header loader 4h
Low CVE-2026-115456 Gcc: out-of-bounds read in std::from_chars 9h
Medium CVE-2026-114690 Gcc: confirmed out-of-bounds read/write in libstdc++ parallel `std 10h
Medium CVE-2026-115455 Gcc: stack overflow in std::bitset on libstdc++ 10h
Medium CVE-2026-114691 Gcc: integer wrap in `std 10h

Not in any source we poll

Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.

No fixed version, patch or mitigation documented.
No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
No exploit packet captures, log samples, or incident case IDs supplied.

Answered from this record

Text assembled only from the fields above — no additional claims.

What should defenders know first?

CVE-2024-3056 is "Podman: kernel: containers in shared ipc namespace are vulnerable to denial of service attack", rated High. It affects Fedora (Fedoraproject); versions are in the scope table. It is not in CISA KEV, which does not rule out exploitation. CVSS 7.7 describes technical severity. EPSS 0.53% estimates the probability of exploitation in 30 days; neither replaces your asset context. First verify whether exposed or business-critical assets run the affected versions, apply vendor fixes or mitigations, and preserve logs for review.

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