RHSA-2026:76677

Vulnerability from csaf_redhat - Published: 2026-10-06 08:26 - Updated: 2026-10-09 08:56
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Severity
Moderate
Notes
Topic: An update for Red Hat Hardened Images RPMs is now available.
Details: This update includes the following RPMs: grafana12.4: * grafana12.4-12.4.12-0.4.hum1 (aarch64, x86_64) * grafana12.4-12.4.12-0.4.hum1.src (src)
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.
CVE-2026-61801

A flaw was found in the moby/sys/user package. The package does not properly limit memory allocation when parsing Unix-style user and group database files, such as /etc/passwd or /etc/group. An attacker who can supply a specially crafted file can cause excessive memory consumption, leading to a Denial of Service (DoS) condition by crashing the affected process.

5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-770 - Allocation of Resources Without Limits or Throttling
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:grafana12.4-0:12.4.12-0.4.hum1@aarch64 —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:grafana12.4-0:12.4.12-0.4.hum1@src —
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:grafana12.4-0:12.4.12-0.4.hum1@x86_64 —
Vendor Fix fix
Workaround
Threats
Impact Moderate
References
To clipboard 

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        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
      },
      "discovery_date": "2026-10-08T16:41:20.397001+00:00",
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          "text": "2548048"
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          "text": "A flaw was found in the moby/sys/user package. The package does not properly limit memory allocation when parsing Unix-style user and group database files, such as /etc/passwd or /etc/group. An attacker who can supply a specially crafted file can cause excessive memory consumption, leading to a Denial of Service (DoS) condition by crashing the affected process.",
          "title": "Vulnerability description"
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          "category": "other",
          "text": "This vulnerability is rated as Moderate impact because exploitation requires supplying a malicious user or group database file to an affected tool, and the resulting impact is limited to an out-of-memory denial of service without compromising confidentiality, integrity, or elevating privileges. Across Red Hat enterprise environments, container management utilities and orchestration platforms invoke these routines when inspecting filesystem layers or resolving identity information during container execution. While an attacker capable of providing a specially crafted database file could trigger resource exhaustion and terminate the consuming process, the flaw does not facilitate container escapes or host compromise.",
          "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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        {
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          "summary": "https://github.com/moby/sys/pull/221",
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          "summary": "https://github.com/moby/sys/security/advisories/GHSA-mjcv-p78q-w5fw",
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            "Red Hat Hardened Images:grafana12.4-0:12.4.12-0.4.hum1@x86_64"
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          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 5.5,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
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            "Red Hat Hardened Images:grafana12.4-0:12.4.12-0.4.hum1@src",
            "Red Hat Hardened Images:grafana12.4-0:12.4.12-0.4.hum1@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "github.com/moby/sys/user: moby/sys/user: Denial of Service via crafted user or group database files"
    }
  ]
}



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