SUSE-SU-2026:22103-1

Vulnerability from csaf_suse - Published: 2026-06-15 08:50 - Updated: 2026-06-15 08:50
Summary
Security update for opensc
Severity
Important
Notes
Title of the patch: Security update for opensc
Description of the patch: This update for opensc fixes the following issues - CVE-2026-10275: global buffer overflow during key pair generation tests due to missing input validation (bsc#1267246). - CVE-2026-40528: stack and heap buffer overrun in the `do_key_value()` function due to missing length check allows for memory corruption via a crafted profile configuration file (bsc#1266963).
Patchnames: SUSE-SLE-Micro-6.0-756
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
CVE-2026-10275
7 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64 —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64 —
Vendor Fix
Threats
Impact important
CVE-2026-40528
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Product Identifier Version Remediation
Unresolved product id: SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64 —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x —
Vendor Fix
Unresolved product id: SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64 —
Vendor Fix
Threats
Impact important
References
To clipboard 

{
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    "aggregate_severity": {
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      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
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      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for opensc",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for opensc fixes the following issues\n\n- CVE-2026-10275: global buffer overflow during key pair generation tests due to missing input validation (bsc#1267246).\n- CVE-2026-40528: stack and heap buffer overrun in the `do_key_value()` function due to missing length check allows for\n  memory corruption via a crafted profile configuration file (bsc#1266963).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-SLE-Micro-6.0-756",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_22103-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2026:22103-1",
        "url": "https://www.suse.com/support/update/announcement/2026/suse-su-202622103-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2026:22103-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2026-June/026787.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1266963",
        "url": "https://bugzilla.suse.com/1266963"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1267246",
        "url": "https://bugzilla.suse.com/1267246"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2026-10275 page",
        "url": "https://www.suse.com/security/cve/CVE-2026-10275/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2026-40528 page",
        "url": "https://www.suse.com/security/cve/CVE-2026-40528/"
      }
    ],
    "title": "Security update for opensc",
    "tracking": {
      "current_release_date": "2026-06-15T08:50:16Z",
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      "id": "SUSE-SU-2026:22103-1",
      "initial_release_date": "2026-06-15T08:50:16Z",
      "revision_history": [
        {
          "date": "2026-06-15T08:50:16Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "opensc-0.24.0-6.1.aarch64",
                "product": {
                  "name": "opensc-0.24.0-6.1.aarch64",
                  "product_id": "opensc-0.24.0-6.1.aarch64"
                }
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            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
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                "category": "product_version",
                "name": "opensc-0.24.0-6.1.s390x",
                "product": {
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                  "product_id": "opensc-0.24.0-6.1.s390x"
                }
              }
            ],
            "category": "architecture",
            "name": "s390x"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "opensc-0.24.0-6.1.x86_64",
                "product": {
                  "name": "opensc-0.24.0-6.1.x86_64",
                  "product_id": "opensc-0.24.0-6.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Micro 6.0",
                "product": {
                  "name": "SUSE Linux Micro 6.0",
                  "product_id": "SUSE Linux Micro 6.0",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sl-micro:6.0"
                  }
                }
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            "category": "product_family",
            "name": "SUSE Linux Enterprise"
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    "relationships": [
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        "full_product_name": {
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          "product_id": "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64"
        },
        "product_reference": "opensc-0.24.0-6.1.aarch64",
        "relates_to_product_reference": "SUSE Linux Micro 6.0"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "opensc-0.24.0-6.1.s390x as component of SUSE Linux Micro 6.0",
          "product_id": "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x"
        },
        "product_reference": "opensc-0.24.0-6.1.s390x",
        "relates_to_product_reference": "SUSE Linux Micro 6.0"
      },
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        "category": "default_component_of",
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        "relates_to_product_reference": "SUSE Linux Micro 6.0"
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  "vulnerabilities": [
    {
      "cve": "CVE-2026-10275",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-10275"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A flaw has been found in OpenSC up to 0.26.1. This affects the function test_kpgen_certwrite of the file src/tools/pkcs11-tool.c of the component pkcs11-tool Key Generation Module. This manipulation causes buffer overflow. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is indicated that the exploitability is difficult. The exploit has been published and may be used. Patch name: 814f745b3b6d100295f65f1935edd33d520d33ab. It is recommended to apply a patch to fix this issue.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64",
          "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x",
          "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-10275",
          "url": "https://www.suse.com/security/cve/CVE-2026-10275"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1267246 for CVE-2026-10275",
          "url": "https://bugzilla.suse.com/1267246"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-06-15T08:50:16Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-10275"
    },
    {
      "cve": "CVE-2026-40528",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2026-40528"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "OpenSC before 0.27.0, fixed in commit 0358817, contains a stack and heap buffer overrun vulnerability in the do_key_value() function in src/pkcs15init/profile.c that allows attackers to corrupt memory by supplying a crafted profile configuration file. During pkcs15-init invocation, a key value entry beginning with \u0027=\u0027 followed by more than sizeof(keybuf) characters is copied into keybuf via memcpy without a length check, causing both stack and heap buffer overruns.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64",
          "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x",
          "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2026-40528",
          "url": "https://www.suse.com/security/cve/CVE-2026-40528"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1266963 for CVE-2026-40528",
          "url": "https://bugzilla.suse.com/1266963"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.aarch64",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.s390x",
            "SUSE Linux Micro 6.0:opensc-0.24.0-6.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-06-15T08:50:16Z",
          "details": "important"
        }
      ],
      "title": "CVE-2026-40528"
    }
  ]
}


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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.