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    "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"
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    "title": "Security update on CVE-2023-7256"
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  "vulnerabilities": [
    {
      "cve": "CVE-2023-7256",
      "cwe": {
        "id": "CWE-415",
        "name": "Double Free"
      },
      "notes": [
        {
          "category": "description",
          "text": "In affected libpcap versions during the setup of a remote packet capture the internal function sock_initaddress() calls getaddrinfo() and possibly freeaddrinfo(), but does not clearly indicate to the caller function whether freeaddrinfo() still remains to be called after the function returns.  This makes it possible in some scenarios that both the function and its caller call freeaddrinfo() for the same allocated memory block.  A similar problem was reported in Apple libpcap, to which Apple assigned CVE-2023-40400.",
          "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"
        }
      ],
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          "Oracle-Linux-7:libpcap-devel-14:1.5.3-13.el7_9.tuxcare.els1.x86_64",
          "Oracle-Linux-7:libpcap-devel-14:1.5.3-13.el7_9.x86_64"
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          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2023-7256"
        },
        {
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          "summary": "https://github.com/the-tcpdump-group/libpcap/commit/262e4f34979872d822ccedf9f318ed89c4d31c03",
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          "summary": "https://github.com/the-tcpdump-group/libpcap/commit/2aa69b04d8173b18a0e3492e0c8f2f7fabdf642d",
          "url": "https://github.com/the-tcpdump-group/libpcap/commit/2aa69b04d8173b18a0e3492e0c8f2f7fabdf642d"
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      "release_date": "2024-08-31T00:15:00Z",
      "remediations": [
        {
          "category": "no_fix_planned",
          "date": "2026-07-09T12:11:46.365898Z",
          "details": "CVE-2023-7256 is a double‑free limited to libpcap’s RPCAP remote-capture setup path, which is only exercised when a privileged local user initiates a remote capture; there is no remote or unauthenticated trigger. Its CVSS vector (AV:L/PR:H/UI:N/S:U/C:N/I:N/A:H) reflects that the realistic outcome is a crash of the capturing process (availability only), with no confidentiality or integrity impact. Given the high local privileges required and the narrow, non-default code path, this issue can be safely deprioritized in typical server/VM deployments.",
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            "Oracle-Linux-7:libpcap-14:1.5.3-13.el7_9.tuxcare.els1.x86_64",
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        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 4.4,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
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      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
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    }
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}