{
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      "text": "Medium"
    },
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "distribution": {
      "text": "TuxCare License Agreement",
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        "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"
      }
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      "generator": {
        "date": "2026-06-12T16:34:35Z",
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      "id": "CVE-2022-4203-ELS_ALT_COMMON-DEBIAN10",
      "initial_release_date": "2022-01-01T00:00:00Z",
      "revision_history": [
        {
          "date": "2022-01-01T00:00:00Z",
          "number": "1",
          "summary": "Initial version"
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        {
          "date": "2026-06-12T16:34:35Z",
          "number": "2",
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      "status": "final",
      "version": "2"
    },
    "title": "Security update on CVE-2022-4203"
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  "vulnerabilities": [
    {
      "cve": "CVE-2022-4203",
      "cwe": {
        "id": "CWE-125",
        "name": "Out-of-bounds Read"
      },
      "notes": [
        {
          "category": "description",
          "text": "A read buffer overrun can be triggered in X.509 certificate verification,\nspecifically in name constraint checking. Note that this occurs\nafter certificate chain signature verification and requires either a\nCA to have signed the malicious certificate or for the application to\ncontinue certificate verification despite failure to construct a path\nto a trusted issuer.\n\nThe read buffer overrun might result in a crash which could lead to\na denial of service attack. In theory it could also result in the disclosure\nof private memory contents (such as private keys, or sensitive plaintext)\nalthough we are not aware of any working exploit leading to memory\ncontents disclosure as of the time of release of this advisory.\n\nIn a TLS client, this can be triggered by connecting to a malicious\nserver. In a TLS server, this can be triggered if the server requests\nclient authentication and a malicious client connects.",
          "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"
        },
        {
          "category": "other",
          "text": "TuxCare has assessed that this vulnerability does not impact any currently supported TuxCare products. This evaluation may change as new information becomes available. For additional details regarding this vulnerability and affected products, refer to the provided references.",
          "title": "Statement"
        }
      ],
      "product_status": {
        "known_not_affected": [
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          "Debian-10:alt-openssl-0:1.1.1w-3.2.amd64",
          "Debian-10:alt-openssl-0:1.1.1w-3.4.amd64",
          "Debian-10:alt-openssl-dev-0:1.1.1w-3.1.amd64",
          "Debian-10:alt-openssl-dev-0:1.1.1w-3.2.amd64",
          "Debian-10:alt-openssl-dev-0:1.1.1w-3.4.amd64",
          "Debian-10:alt-openssl-doc-0:1.1.1w-3.1.all",
          "Debian-10:alt-openssl-doc-0:1.1.1w-3.2.all",
          "Debian-10:alt-openssl-doc-0:1.1.1w-3.4.all",
          "Debian-10:alt-openssl-libs-0:1.1.1w-3.1.amd64",
          "Debian-10:alt-openssl-libs-0:1.1.1w-3.2.amd64",
          "Debian-10:alt-openssl-libs-0:1.1.1w-3.4.amd64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els-lang/cve/CVE-2022-4203"
        },
        {
          "category": "external",
          "summary": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc",
          "url": "https://git.openssl.org/gitweb/?p=openssl.git;a=commitdiff;h=c927a3492698c254637da836762f9b1f86cffabc"
        },
        {
          "category": "external",
          "summary": "https://security.gentoo.org/glsa/202402-08",
          "url": "https://security.gentoo.org/glsa/202402-08"
        },
        {
          "category": "external",
          "summary": "https://www.openssl.org/news/secadv/20230207.txt",
          "url": "https://www.openssl.org/news/secadv/20230207.txt"
        },
        {
          "category": "external",
          "summary": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003",
          "url": "https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2023-0003"
        }
      ],
      "release_date": "2023-02-24T15:15:00Z",
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 4.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/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"
        },
        {
          "category": "impact",
          "date": "2026-06-12T13:13:10.651837Z",
          "details": "Not vulnerable: CVE-2022-4203 only affects OpenSSL 3.0.0–3.0.7, while OpenSSL 1.1.1w is in use. The flaw is in the 3.0 name-constraints code path (e.g., ossl_a2ulabel in crypto/x509/v3_ncons.c) introduced during the 3.0 rewrite and not present in 1.1.1, so the vulnerable logic is absent.",
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