RHSA-2026:38279

Vulnerability from csaf_redhat - Published: 2026-07-12 15:11 - Updated: 2026-07-13 05:10
Summary
Red Hat Security Advisory: Red Hat Hardened Images RPMs Security 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-3.8.8-2.1.hum1 (aarch64, x86_64) * bsdcpio-3.8.8-2.1.hum1 (aarch64, x86_64) * bsdtar-3.8.8-2.1.hum1 (aarch64, x86_64) * bsdunzip-3.8.8-2.1.hum1 (aarch64, x86_64) * libarchive-3.8.8-2.1.hum1 (aarch64, x86_64) * libarchive-devel-3.8.8-2.1.hum1 (aarch64, x86_64) * libarchive-3.8.8-2.1.hum1.src (src) Security Fix(es): libarchive: * CVE-2026-15028
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-2026-15028

A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.

3.9 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L
Affected products
Product Identifier Version Remediation
Unresolved product id: Red Hat Hardened Images:libarchive-main@aarch64 —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:libarchive-main@src —
Vendor Fix fix
Unresolved product id: Red Hat Hardened Images:libarchive-main@x86_64 —
Vendor Fix fix
Threats
Impact Moderate
References
To clipboard 

{
  "document": {
    "aggregate_severity": {
      "namespace": "https://access.redhat.com/security/updates/classification/",
      "text": "Moderate"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "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-3.8.8-2.1.hum1 (aarch64, x86_64)\n  * bsdcpio-3.8.8-2.1.hum1 (aarch64, x86_64)\n  * bsdtar-3.8.8-2.1.hum1 (aarch64, x86_64)\n  * bsdunzip-3.8.8-2.1.hum1 (aarch64, x86_64)\n  * libarchive-3.8.8-2.1.hum1 (aarch64, x86_64)\n  * libarchive-devel-3.8.8-2.1.hum1 (aarch64, x86_64)\n  * libarchive-3.8.8-2.1.hum1.src (src)\n\nSecurity Fix(es):\n\nlibarchive:\n  * CVE-2026-15028",
        "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"
      }
    ],
    "publisher": {
      "category": "vendor",
      "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-2026:38279",
        "url": "https://access.redhat.com/errata/RHSA-2026:38279"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/cve/CVE-2026-15028",
        "url": "https://access.redhat.com/security/cve/CVE-2026-15028"
      },
      {
        "category": "external",
        "summary": "https://access.redhat.com/security/updates/classification/",
        "url": "https://access.redhat.com/security/updates/classification/"
      },
      {
        "category": "external",
        "summary": "https://images.redhat.com/",
        "url": "https://images.redhat.com/"
      },
      {
        "category": "self",
        "summary": "Canonical URL",
        "url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_38279.json"
      }
    ],
    "title": "Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update",
    "tracking": {
      "current_release_date": "2026-07-13T05:10:35+00:00",
      "generator": {
        "date": "2026-07-13T05:10:35+00:00",
        "engine": {
          "name": "Red Hat SDEngine",
          "version": "5.3.2"
        }
      },
      "id": "RHSA-2026:38279",
      "initial_release_date": "2026-07-12T15:11:41+00:00",
      "revision_history": [
        {
          "date": "2026-07-12T15:11:41+00:00",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-07-12T15:12:43+00:00",
          "number": "2",
          "summary": "Last updated version"
        },
        {
          "date": "2026-07-13T05:10:35+00:00",
          "number": "3",
          "summary": "Last generated version"
        }
      ],
      "status": "final",
      "version": "3"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_name",
                "name": "Red Hat Hardened Images",
                "product": {
                  "name": "Red Hat Hardened Images",
                  "product_id": "Red Hat Hardened Images",
                  "product_identification_helper": {
                    "cpe": "cpe:/a:redhat:hummingbird:1"
                  }
                }
              }
            ],
            "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@3.8.8-2.1.hum1?arch=aarch64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-aarch64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libarchive-main@x86_64",
                "product": {
                  "name": "libarchive-main@x86_64",
                  "product_id": "libarchive-main@x86_64",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/bsdcat@3.8.8-2.1.hum1?arch=x86_64\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-x86_64-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "libarchive-main@src",
                "product": {
                  "name": "libarchive-main@src",
                  "product_id": "libarchive-main@src",
                  "product_identification_helper": {
                    "purl": "pkg:rpm/redhat/libarchive@3.8.8-2.1.hum1?arch=src\u0026distro=hummingbird-20251124\u0026repository_id=public-hummingbird-source-rpms"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "src"
          }
        ],
        "category": "vendor",
        "name": "Red Hat"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "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",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libarchive-main@src as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:libarchive-main@src"
        },
        "product_reference": "libarchive-main@src",
        "relates_to_product_reference": "Red Hat Hardened Images"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "libarchive-main@x86_64 as a component of Red Hat Hardened Images",
          "product_id": "Red Hat Hardened Images:libarchive-main@x86_64"
        },
        "product_reference": "libarchive-main@x86_64",
        "relates_to_product_reference": "Red Hat Hardened Images"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2026-15028",
      "discovery_date": "2026-07-08T00:00:00+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2497970"
        }
      ],
      "notes": [
        {
          "category": "description",
          "text": "A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.",
          "title": "Vulnerability description"
        },
        {
          "category": "summary",
          "text": "libarchive: heap overflow OOB read while parsing a tar archive contains a PAX extended header",
          "title": "Vulnerability summary"
        },
        {
          "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-2026-15028"
        },
        {
          "category": "external",
          "summary": "RHBZ#2497970",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2497970"
        },
        {
          "category": "external",
          "summary": "https://www.cve.org/CVERecord?id=CVE-2026-15028",
          "url": "https://www.cve.org/CVERecord?id=CVE-2026-15028"
        },
        {
          "category": "external",
          "summary": "https://nvd.nist.gov/vuln/detail/CVE-2026-15028",
          "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-15028"
        },
        {
          "category": "external",
          "summary": "https://github.com/libarchive/libarchive/issues/3251",
          "url": "https://github.com/libarchive/libarchive/issues/3251"
        },
        {
          "category": "external",
          "summary": "https://github.com/libarchive/libarchive/pull/3253",
          "url": "https://github.com/libarchive/libarchive/pull/3253"
        }
      ],
      "release_date": "2026-07-08T10:10:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-07-12T15:11:41+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-2026:38279"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "LOW",
            "baseScore": 3.9,
            "baseSeverity": "LOW",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L",
            "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: heap overflow OOB read while parsing a tar archive contains a PAX extended header"
    }
  ]
}



Log in or create an account to share your comment.




Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.