Red Hat Security Advisory: buildah security update
The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881) * golang: archive/tar: Unbounded allocation when parsing GNU sparse map (CVE-2025-58183) 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.
AI Analysis
Technical Summary
The buildah package in Red Hat Enterprise Linux 10 facilitates building OCI container images. Two security flaws are addressed in this update: CVE-2025-52881 involves a container escape and denial of service vulnerability in runc due to arbitrary write gadgets and procfs write redirects, potentially allowing an attacker to break container isolation. CVE-2025-58183 is an unbounded allocation vulnerability in the golang archive/tar library when parsing GNU sparse maps, which could lead to resource exhaustion. Red Hat has released updated buildah packages to fix these issues as detailed in advisory RHSA-2025:22012.
Potential Impact
The vulnerabilities could allow an attacker to escape container isolation and cause denial of service (CVE-2025-52881), or trigger unbounded memory allocation leading to resource exhaustion (CVE-2025-58183). These issues affect container image building and runtime components, potentially impacting container security and stability on affected Red Hat Enterprise Linux 10 systems.
Mitigation Recommendations
Red Hat has released updated buildah packages for Red Hat Enterprise Linux 10 that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2025:22012 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official update.
Red Hat Security Advisory: buildah security update
Description
The buildah package provides a tool for facilitating building OCI container images. Among other things, buildah enables you to: Create a working container, either from scratch or using an image as a starting point; Create an image, either from a working container or using the instructions in a Dockerfile; Build both Docker and OCI images. Security Fix(es): * runc: container escape and denial of service due to arbitrary write gadgets and procfs write redirects (CVE-2025-52881) * golang: archive/tar: Unbounded allocation when parsing GNU sparse map (CVE-2025-58183) 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.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The buildah package in Red Hat Enterprise Linux 10 facilitates building OCI container images. Two security flaws are addressed in this update: CVE-2025-52881 involves a container escape and denial of service vulnerability in runc due to arbitrary write gadgets and procfs write redirects, potentially allowing an attacker to break container isolation. CVE-2025-58183 is an unbounded allocation vulnerability in the golang archive/tar library when parsing GNU sparse maps, which could lead to resource exhaustion. Red Hat has released updated buildah packages to fix these issues as detailed in advisory RHSA-2025:22012.
Potential Impact
The vulnerabilities could allow an attacker to escape container isolation and cause denial of service (CVE-2025-52881), or trigger unbounded memory allocation leading to resource exhaustion (CVE-2025-58183). These issues affect container image building and runtime components, potentially impacting container security and stability on affected Red Hat Enterprise Linux 10 systems.
Mitigation Recommendations
Red Hat has released updated buildah packages for Red Hat Enterprise Linux 10 that address these vulnerabilities. Users should apply the security update as described in Red Hat advisory RHSA-2025:22012 and the referenced article https://access.redhat.com/articles/11258. No additional mitigation steps are indicated beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:22012
- Cve Count
- 2
- Additional Cves
- ["CVE-2025-58183"]
Threat ID: 6a16097ae29bf47b50646d11
Added to database: 05/26/2026, 20:58:34 UTC
Last enriched: 08/14/2026, 22:23:07 UTC
Last updated: 09/10/2026, 19:36:51 UTC
Views: 84
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