{
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    "aggregate_severity": {
      "text": "Important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "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 Cloud Linux Inc. and provide a link to the original.",
        "title": "Terms of Use"
      },
      {
        "category": "details",
        "text": "CVE-2025-3887: fix H265 slice header parsing to validate num_long_term_pics\n  and prevent stack overflow",
        "title": "Details"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://tuxcare.com/contact/",
      "name": "TuxCare",
      "namespace": "https://tuxcare.com/"
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        "summary": "Canonical URL",
        "url": "https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/advisories/2025/clsa-2025_1753729945.json"
      },
      {
        "category": "self",
        "summary": "https://cve.tuxcare.com/els/releases/CLSA-2025:1753729945",
        "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1753729945"
      }
    ],
    "tracking": {
      "current_release_date": "2026-02-16T09:32:00Z",
      "generator": {
        "date": "2026-02-16T09:32:00Z",
        "engine": {
          "name": "pyCSAF"
        }
      },
      "id": "CLSA-2025:1753729945",
      "initial_release_date": "2025-07-28T19:12:58Z",
      "revision_history": [
        {
          "date": "2025-07-28T19:12:58Z",
          "number": "1",
          "summary": "Initial version"
        },
        {
          "date": "2026-02-16T09:32:00Z",
          "number": "2",
          "summary": "Update document"
        }
      ],
      "status": "final",
      "version": "2"
    },
    "title": "gstreamer1-plugins-bad-free: Fix of CVE-2025-3887"
  },
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  "vulnerabilities": [
    {
      "cve": "CVE-2025-3887",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "description",
          "text": "GStreamer H265 Codec Parsing Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation.\nThe specific flaw exists within the parsing of H265 slice headers. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. Was ZDI-CAN-26596.",
          "title": "Vulnerability description"
        },
        {
          "category": "general",
          "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.",
          "title": "CVSS score applicability"
        }
      ],
      "product_status": {
        "fixed": [
          "AlmaLinux-9.2:gstreamer1-plugins-bad-free-0:1.18.4-6.el9_2.tuxcare.els1.i686",
          "AlmaLinux-9.2:gstreamer1-plugins-bad-free-0:1.18.4-6.el9_2.tuxcare.els1.x86_64",
          "AlmaLinux-9.2:gstreamer1-plugins-bad-free-devel-0:1.18.4-6.el9_2.tuxcare.els1.i686",
          "AlmaLinux-9.2:gstreamer1-plugins-bad-free-devel-0:1.18.4-6.el9_2.tuxcare.els1.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-3887"
        }
      ],
      "release_date": "2025-05-22T00:47:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2025-07-28T19:12:15Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2025:1753729945",
          "product_ids": [
            "AlmaLinux-9.2:gstreamer1-plugins-bad-free-0:1.18.4-6.el9_2.tuxcare.els1.i686",
            "AlmaLinux-9.2:gstreamer1-plugins-bad-free-0:1.18.4-6.el9_2.tuxcare.els1.x86_64",
            "AlmaLinux-9.2:gstreamer1-plugins-bad-free-devel-0:1.18.4-6.el9_2.tuxcare.els1.i686",
            "AlmaLinux-9.2:gstreamer1-plugins-bad-free-devel-0:1.18.4-6.el9_2.tuxcare.els1.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2025:1753729945"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "AlmaLinux-9.2:gstreamer1-plugins-bad-free-devel-0:1.18.4-6.el9_2.tuxcare.els1.x86_64"
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        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}