RHSA-2026:30333

Vulnerability from csaf_redhat - Published: 2026-06-26 17:19 - Updated: 2026-06-30 17:09
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: libarchive: * bsdcat-3.8.8-2.hum1 (aarch64, x86_64) * bsdcpio-3.8.8-2.hum1 (aarch64, x86_64) * bsdtar-3.8.8-2.hum1 (aarch64, x86_64) * bsdunzip-3.8.8-2.hum1 (aarch64, x86_64) * libarchive-3.8.8-2.hum1 (aarch64, x86_64) * libarchive-devel-3.8.8-2.hum1 (aarch64, x86_64) * libarchive-3.8.8-2.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.

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.

CWE-415 - Double Free
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:libarchive-main@aarch64
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:libarchive-main@src
Vendor Fix fix
Workaround
Unresolved product id: Red Hat Hardened Images:libarchive-main@x86_64
Vendor Fix fix
Workaround
Threats
Impact Moderate

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    "distribution": {
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      {
        "category": "summary",
        "text": "An update for Red Hat Hardened Images RPMs is now available.",
        "title": "Topic"
      },
      {
        "category": "general",
        "text": "This update includes the following RPMs:\n\nlibarchive:\n  * bsdcat-3.8.8-2.hum1 (aarch64, x86_64)\n  * bsdcpio-3.8.8-2.hum1 (aarch64, x86_64)\n  * bsdtar-3.8.8-2.hum1 (aarch64, x86_64)\n  * bsdunzip-3.8.8-2.hum1 (aarch64, x86_64)\n  * libarchive-3.8.8-2.hum1 (aarch64, x86_64)\n  * libarchive-devel-3.8.8-2.hum1 (aarch64, x86_64)\n  * libarchive-3.8.8-2.hum1.src (src)",
        "title": "Details"
      },
      {
        "category": "legal_disclaimer",
        "text": "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.",
        "title": "Terms of Use"
      }
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    "publisher": {
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      "contact_details": "https://access.redhat.com/security/team/contact/",
      "issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
      "name": "Red Hat Product Security",
      "namespace": "https://www.redhat.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "https://access.redhat.com/errata/RHSA-2026:30333",
        "url": "https://access.redhat.com/errata/RHSA-2026:30333"
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        "url": "https://access.redhat.com/security/cve/CVE-2026-14164"
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        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_30333.json"
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    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update",
    "tracking": {
      "current_release_date": "2026-06-30T17:09:25+00:00",
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      "id": "RHSA-2026:30333",
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      "revision_history": [
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          "date": "2026-06-26T17:19:56+00:00",
          "number": "1",
          "summary": "Initial version"
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                "name": "Red Hat Hardened Images",
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                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
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              }
            ],
            "category": "product_family",
            "name": "Red Hat Hardened Images"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libarchive-main@aarch64",
                "product": {
                  "name": "libarchive-main@aarch64",
                  "product_id": "libarchive-main@aarch64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/bsdcat@3.8.8-2.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
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            "category": "architecture",
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                    "purl": "pkg:rpm/redhat/libarchive@3.8.8-2.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
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          "name": "libarchive-main@aarch64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:libarchive-main@aarch64"
        },
        "product_reference": "libarchive-main@aarch64",
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-14164",
      "cwe": {
        "id": "CWE-415",
        "name": "Double Free"
      },
      "discovery_date": "2026-06-26T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2493411"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A double free issue has been identified in libarchive\u0027s RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "libarchive: Double-Free Vulnerability in RAR5 Decompression Logic via dangling filtered_buf pointer in init_unpack()",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
          "text": "Red Hat Product Security has assessed this CVE as 7.5 CVSS with Moderate security Impact. This assessment reflects the library\u0027s typical deployment within enterprise software, where libarchive is frequently embedded into automated, network-accessible services that receive and process archives originating from remote sources. In these environments, a specially crafted RAR5 archive may be delivered and processed automatically without requiring direct user interaction, allowing a remote attacker to trigger the vulnerability and cause the affected application or service processing the archive to terminate unexpectedly, resulting in a denial of service.\n\nFrom a standalone library perspective, however, the vulnerable code is only reached when an application opens and processes a crafted RAR5 archive. Evaluating libarchive in isolation, without considering downstream deployment models, the vulnerability more closely aligns with a CVSS score of 5.5-CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H (Moderate), reflecting an Attack Vector of Local (AV:L) and User Interaction Required (UI:R). This is because the crafted archive must first be delivered to and processed by a local application before the vulnerable parsing logic is executed. \n\nRed Hat\u0027s assigned score instead reflects the operational deployment of libarchive in automated, network-facing workloads in downstream environment models rather than the standalone library in isolation.\n\n```\n\nThis vulnerability only affects libarchive releases that include support for the RAR5 archive format. RAR5 support was first introduced upstream in libarchive 3.4.0 (https://github.com/libarchive/libarchive/wiki/ReleaseNotes#libarchive-340). Earlier libarchive releases do not contain the vulnerable RAR5 parsing code and are therefore not affected.\n\nRed Hat Enterprise Linux 6, 7, and 8 ship Libarchive versions prior to v3.4.0 that do not include RAR5 support and are therefore not affected.\n\n```",
          "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.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "Red Hat Hardened Images:libarchive-main@aarch64",
          "Red Hat Hardened Images:libarchive-main@src",
          "Red Hat Hardened Images:libarchive-main@x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://access.redhat.com/security/cve/CVE-2026-14164"
        },
        {
          "category": "external",
          "summary": "RHBZ#2493411",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2493411"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-14164",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-14164"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-14164",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-14164"
        },
        {
          "category": "external",
          "summary": "https://github.com/libarchive/libarchive/issues/3069",
          "url": "https://github.com/libarchive/libarchive/issues/3069"
        },
        {
          "category": "external",
          "summary": "https://github.com/libarchive/libarchive/pull/3071",
          "url": "https://github.com/libarchive/libarchive/pull/3071"
        }
      ],
      "release_date": "2026-05-24T00:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-06-26T17:19:56+00:00",
          "details": "For details on how to apply this update, which includes the changes described in this advisory, refer to:\nhttps://images.redhat.com/",
          "product_ids": [
            "Red Hat Hardened Images:libarchive-main@aarch64",
            "Red Hat Hardened Images:libarchive-main@src",
            "Red Hat Hardened Images:libarchive-main@x86_64"
          ],
          "restart_required": {
            "category": "none"
          },
          "url": "https://access.redhat.com/errata/RHSA-2026:30333"
        },
        {
          "category": "workaround",
          "details": "No mitigation is currently available that meets Red Hat Product Security\u0027s standards for usability, deployment, applicability, or stability. Customers are advised to apply the appropriate security update once it becomes available.",
          "product_ids": [
            "Red Hat Hardened Images:libarchive-main@aarch64",
            "Red Hat Hardened Images:libarchive-main@src",
            "Red Hat Hardened Images:libarchive-main@x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "Red Hat Hardened Images:libarchive-main@aarch64",
            "Red Hat Hardened Images:libarchive-main@src",
            "Red Hat Hardened Images:libarchive-main@x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ],
      "title": "libarchive: Double-Free Vulnerability in RAR5 Decompression Logic via dangling filtered_buf pointer in init_unpack()"
    }
  ]
}


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