{
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      "text": "Moderate"
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    "csaf_version": "2.0",
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      "text": "TuxCare License Agreement",
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        "url": "https://www.first.org/tlp/"
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        "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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        "text": "CVE-2023-5992: implement constant-time PKCS#1 v1.5 depadding to prevent Bleichenbacher/Marvin-style timing attacks\n- CVE-2025-49010: fix stack buffer overflow write in iso7816 GET RESPONSE\n- CVE-2025-66037: fix out-of-bounds heap read in sc_pkcs15_pubkey_from_spki_fields\n- CVE-2025-66038: fix buffer over-read in sc_compacttlv_find_tag\n- CVE-2025-66215: fix stack buffer overflow write in card-oberthur auth_compute_signature and auth_read_record",
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        "date": "2026-05-19T11:34:41Z",
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      "id": "CLSA-2026:1779190223",
      "initial_release_date": "2026-05-19T11:34:41Z",
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        {
          "date": "2026-05-19T11:34:41Z",
          "number": "1",
          "summary": "Initial version"
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      "status": "final",
      "version": "1"
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    "title": "opensc: Fix of 5 CVEs"
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          "text": "OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, feeding a crafted input to the fuzz_pkcs15_reader harness causes OpenSC to perform an out-of-bounds heap read in the X.509/SPKI handling path. Specifically, sc_pkcs15_pubkey_from_spki_fields() allocates a zero-length buffer and then reads one byte past the end of that allocation. This issue has been patched in version 0.27.0.",
          "title": "Vulnerability description"
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          "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.",
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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        {
          "category": "description",
          "text": "OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to the computer at the time user or administrator uses a token can cause a stack-buffer-overflow WRITE in card-oberthur. The attack requires crafted USB device or smart card that would present the system with specially crafted responses to the APDUs. This issue has been patched in version 0.27.0.",
          "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": [
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          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
        ],
        "known_affected": [
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          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.x86_64",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.i686",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.x86_64",
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          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.x86_64",
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          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.x86_64",
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          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els6.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-66215"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/commit/efd1d479832141bcf705c2f47655ada4d5f92f5d",
          "url": "https://github.com/OpenSC/OpenSC/commit/efd1d479832141bcf705c2f47655ada4d5f92f5d"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/pull/3436",
          "url": "https://github.com/OpenSC/OpenSC/pull/3436"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5fc-cw56-hwp2",
          "url": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5fc-cw56-hwp2"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66215",
          "url": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66215"
        }
      ],
      "release_date": "2026-03-30T18:16:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-19T11:30:41.044121Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223"
        },
        {
          "category": "none_available",
          "date": "2026-03-30T18:16:00Z",
          "details": "Affected",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.i686",
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            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.x86_64",
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            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els6.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    },
    {
      "cve": "CVE-2025-66038",
      "cwe": {
        "id": "CWE-126",
        "name": "Buffer Over-read"
      },
      "notes": [
        {
          "category": "description",
          "text": "OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, sc_compacttlv_find_tag searches a compact-TLV buffer for a given tag. In compact-TLV, a single byte encodes the tag (high nibble) and value length (low nibble). With a 1-byte buffer {0x0A}, the encoded element claims tag=0 and length=10 but no value bytes follow. Calling sc_compacttlv_find_tag with search tag 0x00 returns a pointer equal to buf+1 and outlen=10 without verifying that the claimed value length fits within the remaining buffer. In cases where the sc_compacttlv_find_tag is provided untrusted data (such as being read from cards/files), attackers may be able to influence it to return out-of-bounds pointers leading to downstream memory corruption when subsequent code tries to dereference the pointer. This issue has been patched in version 0.27.0.",
          "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:opensc-0:0.22.0-2.el9_2.tuxcare.els5.i686",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
        ],
        "known_affected": [
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          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.x86_64",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.i686",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.x86_64",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.i686",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.x86_64",
          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.i686",
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          "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els6.x86_64"
        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-66038"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/commit/6db171bcb6fd7cb3b51098fefbb3b28e44f0a79c",
          "url": "https://github.com/OpenSC/OpenSC/commit/6db171bcb6fd7cb3b51098fefbb3b28e44f0a79c"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-72x5-fwjx-2459",
          "url": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-72x5-fwjx-2459"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66038",
          "url": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-66038"
        }
      ],
      "release_date": "2026-03-30T18:16:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-19T11:30:41.044121Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223"
        },
        {
          "category": "none_available",
          "date": "2026-03-30T18:16:00Z",
          "details": "Affected",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.x86_64",
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            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els6.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    },
    {
      "cve": "CVE-2025-49010",
      "cwe": {
        "id": "CWE-121",
        "name": "Stack-based Buffer Overflow"
      },
      "notes": [
        {
          "category": "description",
          "text": "OpenSC is an open source smart card tools and middleware. Prior to version 0.27.0, an attacker with physical access to the computer at the time user or administrator uses a token can cause a stack-buffer-overflow write in GET RESPONSE. The attack requires crafted USB device or smart card that would present the system with specially crafted responses to the APDUs. This issue has been patched in version 0.27.0.",
          "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": {
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        ],
        "known_affected": [
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        ]
      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2025-49010"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5cf-5wmx-9wh4",
          "url": "https://github.com/OpenSC/OpenSC/security/advisories/GHSA-q5cf-5wmx-9wh4"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-49010",
          "url": "https://github.com/OpenSC/OpenSC/wiki/CVE-2025-49010"
        }
      ],
      "release_date": "2026-03-30T18:16:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-19T11:30:41.044121Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223"
        },
        {
          "category": "none_available",
          "date": "2026-03-30T18:16:00Z",
          "details": "Affected",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.x86_64",
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        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "LOW",
            "attackVector": "PHYSICAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.8,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    },
    {
      "cve": "CVE-2023-5992",
      "cwe": {
        "id": "CWE-203",
        "name": "Observable Discrepancy"
      },
      "notes": [
        {
          "category": "description",
          "text": "A vulnerability was found in OpenSC where PKCS#1 encryption padding removal is not implemented as side-channel resistant. This issue may result in the potential leak of private data.",
          "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": {
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      },
      "references": [
        {
          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2023-5992"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2024:0966",
          "url": "https://access.redhat.com/errata/RHSA-2024:0966"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/errata/RHSA-2024:0967",
          "url": "https://access.redhat.com/errata/RHSA-2024:0967"
        },
        {
          "category": "external",
          "summary": "https://access.redhat.com/security/cve/CVE-2023-5992",
          "url": "https://access.redhat.com/security/cve/CVE-2023-5992"
        },
        {
          "category": "external",
          "summary": "https://bugzilla.redhat.com/show_bug.cgi?id=2248685",
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2248685"
        },
        {
          "category": "external",
          "summary": "https://github.com/OpenSC/OpenSC/wiki/CVE-2023-5992",
          "url": "https://github.com/OpenSC/OpenSC/wiki/CVE-2023-5992"
        },
        {
          "category": "external",
          "summary": "https://www.usenix.org/system/files/usenixsecurity24-shagam.pdf",
          "url": "https://www.usenix.org/system/files/usenixsecurity24-shagam.pdf"
        },
        {
          "category": "external",
          "summary": "https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html",
          "url": "https://lists.debian.org/debian-lts-announce/2024/12/msg00026.html"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OWIZ5ZLO5ECYPLSTESCF7I7PQO5X6ZSU/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/OWIZ5ZLO5ECYPLSTESCF7I7PQO5X6ZSU/"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJI2FWLY24EOPALQ43YPQEZMEP3APPPI/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RJI2FWLY24EOPALQ43YPQEZMEP3APPPI/"
        },
        {
          "category": "external",
          "summary": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UECKC7X4IM4YZQ5KRQMNBNKNOXLZC7RZ/",
          "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UECKC7X4IM4YZQ5KRQMNBNKNOXLZC7RZ/"
        }
      ],
      "release_date": "2024-01-31T14:15:00Z",
      "remediations": [
        {
          "category": "vendor_fix",
          "date": "2026-05-19T11:30:41.044121Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1779190223"
        },
        {
          "category": "none_available",
          "date": "2024-01-31T14:15:00Z",
          "details": "Affected",
          "product_ids": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9.tuxcare.els1.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els2.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els3.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els4.x86_64",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els6.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els6.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "products": [
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.i686",
            "AlmaLinux-9.2:opensc-0:0.22.0-2.el9_2.tuxcare.els5.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Moderate"
        }
      ]
    }
  ]
}