rhsa-2025:21702
Vulnerability from csaf_redhat
Published
2025-11-18 15:34
Modified
2025-11-27 17:37
Summary
Red Hat Security Advisory: podman security update
Notes
Topic
An update for podman is now available for Red Hat Enterprise Linux 9.
Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
Details
The podman tool manages pods, container images, and containers. It is part of the libpod library, which is for applications that use container pods. Container pods is a concept in Kubernetes.
Security Fix(es):
* runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
Terms of Use
This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
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"text": "A flaw was found in runc. This attack is a more sophisticated variant of CVE-2019-16884, which was a flaw that allowed an attacker to trick runc into writing the LSM process labels for a container process into a dummy tmpfs file and thus not apply the correct LSM labels to the container process. The mitigation applied for CVE-2019-16884 was fairly limited and effectively only caused runc to verify that when we write LSM labels that those labels are actual procfs files.",
"title": "Vulnerability description"
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"text": "runc: opencontainers/selinux: container escape and denial of service due to arbitrary write gadgets and procfs write redirects",
"title": "Vulnerability summary"
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{
"category": "other",
"text": "Red Hat considers this as an Important flaw since the impact is limited to local attack with minimal privileges in order to jeopardize the environment.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
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{
"category": "self",
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},
{
"category": "external",
"summary": "RHBZ#2404715",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2404715"
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{
"category": "external",
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"url": "https://www.cve.org/CVERecord?id=CVE-2025-52881"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-52881",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52881"
},
{
"category": "external",
"summary": "https://github.com/opencontainers/selinux/pull/237",
"url": "https://github.com/opencontainers/selinux/pull/237"
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"release_date": "2025-11-05T09:00:00+00:00",
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{
"category": "vendor_fix",
"date": "2025-11-18T15:34:16+00:00",
"details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
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"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "runc: opencontainers/selinux: container escape and denial of service due to arbitrary write gadgets and procfs write redirects"
}
]
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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