{
  "document": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Recommended update for shim",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for shim fixes the following issues:\n\nThis update for shim fixes the following issues:\n\nshim is updated to version 16.1:\n\n- shim_start_image(): fix guid/handle pairing when uninstalling protocols\n- Fix uncompressed ipv6 netboot\n- fix test segfaults caused by uninitialized memory\n- SbatLevel_Variable.txt: minor typo fix.\n- Realloc() needs to allocate one more byte for sprintf()\n- IPv6: Add more check to avoid multiple double colon and illegal char\n- Loader proto v2\n- loader-protocol: add workaround for EDK2 2025.02 page fault on FreePages\n- Generate Authenticode for the entire PE file\n- README: mention new loader protocol and interaction with UKIs\n- shim: change automatically enable MOK_POLICY_REQUIRE_NX\n- Save var info\n- add SbatLevel entry 2025051000 for PSA-2025-00012-1\n- Coverity fixes 20250804\n- fix http boot\n- Fix double free and leak in the loader protocol\n\n\nshim is updated to version 16.0:\n\n\n- Validate that a supplied vendor cert is not in PEM format\n- sbat: Add grub.peimage,2 to latest (CVE-2024-2312)\n- sbat: Also bump latest for grub,4 (and to todays date)\n- undo change that limits certificate files to a single file\n- shim: don\u0027t set second_stage to the empty string\n- Fix SBAT.md for today\u0027s consensus about numbers\n- Update Code of Conduct contact address\n- make-certs: Handle missing OpenSSL installation\n- Update MokVars.txt\n- export DEFINES for sub makefile\n- Drop unused EFI_IMAGE_SECURITY_DATABASE_GUID definition\n- Null-terminate \u0027arguments\u0027 in fallback\n- Fix \"Verifiying\" typo in error message\n- Update Fedora CI targets\n- Force gcc to produce DWARF4 so that gdb can use it\n- Minor housekeeping 2024121700\n- Discard load-options that start with WINDOWS\n- Fix the issue that the gBS-\u003eLoadImage pointer was empty.\n- shim: Allow data after the end of device path node in load options\n- Handle network file not found like disks\n- Update gnu-efi submodule for EFI_HTTP_ERROR\n- Increase EFI file alignment\n- avoid EFIv2 runtime services on Apple x86 machines\n- Improve shortcut performance when comparing two boolean expressions\n- Provide better error message when MokManager is not found\n- tpm: Boot with a warning if the event log is full\n- MokManager: remove redundant logical constraints\n- Test import_mok_state() when MokListRT would be bigger than available size\n- test-mok-mirror: minor bug fix\n- Fix file system browser hang when enrolling MOK from disk\n- Ignore a minor clang-tidy nit\n- Allow fallback to default loader when encountering errors on network boot\n- test.mk: don\u0027t use a temporary random.bin\n- pe: Enhance debug report for update_mem_attrs\n- Multiple certificate handling improvements\n- Generate SbatLevel Metadata from SbatLevel_Variable.txt\n- Apply EKU check with compile option\n- Add configuration option to boot an alternative 2nd stage\n- Loader protocol (with Device Path resolution support)\n- netboot cleanup for additional files\n- Document how revocations can be delivered\n- post-process-pe: add tests to validate NX compliance\n- regression: CopyMem() in ad8692e copies out of bounds\n- Save the debug and error logs in mok-variables\n- Add features for the Host Security ID program\n- Mirror some more efi variables to mok-variables\n- This adds DXE Services measurements to HSI and uses them for NX\n- Add shim\u0027s current NX_COMPAT status to HSIStatus\n- README.tpm: reflect that vendor_db is in fact logged as \"vendor_db\"\n- Reject HTTP message with duplicate Content-Length header fields\n- Disable log saving\n- fallback: don\u0027t add new boot order entries backwards\n- README.tpm: Update MokList entry to MokListRT\n- SBAT Level update for February 2025 GRUB CVEs\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-SLE-Micro-6.1-363",
        "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-ru-2026_20056-1.json"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-RU-2026:20056-1",
        "url": "https://lists.suse.com/pipermail/sle-updates/2026-January/043471.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1205588",
        "url": "https://bugzilla.suse.com/1205588"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1247432",
        "url": "https://bugzilla.suse.com/1247432"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1254336",
        "url": "https://bugzilla.suse.com/1254336"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1254679",
        "url": "https://bugzilla.suse.com/1254679"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2024-2312 page",
        "url": "https://www.suse.com/security/cve/CVE-2024-2312/"
      }
    ],
    "title": "Recommended update for shim",
    "tracking": {
      "current_release_date": "2026-09-16T18:55:13Z",
      "generator": {
        "date": "2026-01-01T13:54:36Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-RU-2026:20056-1",
      "initial_release_date": "2026-01-01T13:54:36Z",
      "revision_history": [
        {
          "date": "2026-01-01T13:54:36Z",
          "number": "1",
          "summary": "Current version"
        },
        {
          "date": "2026-01-01T13:54:36Z",
          "number": "2",
          "summary": "unknown changes"
        },
        {
          "date": "2026-09-16T18:11:01Z",
          "number": "3",
          "summary": "unknown changes"
        },
        {
          "date": "2026-09-16T18:55:13Z",
          "number": "4",
          "summary": "unknown changes"
        }
      ],
      "status": "final",
      "version": "4"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "shim-16.1-slfo.1.1_1.1.aarch64",
                "product": {
                  "name": "shim-16.1-slfo.1.1_1.1.aarch64",
                  "product_id": "shim-16.1-slfo.1.1_1.1.aarch64",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:redhat:shim:16.1:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/shim@16.1-slfo.1.1_1.1?arch=aarch64\u0026upstream=shim-16.1-slfo.1.1_1.1.src.rpm"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "aarch64"
          },
          {
            "branches": [
              {
                "category": "product_version",
                "name": "shim-16.1-slfo.1.1_1.1.x86_64",
                "product": {
                  "name": "shim-16.1-slfo.1.1_1.1.x86_64",
                  "product_id": "shim-16.1-slfo.1.1_1.1.x86_64",
                  "product_identification_helper": {
                    "cpe": "cpe:2.3:a:redhat:shim:16.1:*:*:*:*:*:*:*",
                    "purl": "pkg:rpm/suse/shim@16.1-slfo.1.1_1.1?arch=x86_64\u0026upstream=shim-16.1-slfo.1.1_1.1.src.rpm"
                  }
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Micro 6.1",
                "product": {
                  "name": "SUSE Linux Micro 6.1",
                  "product_id": "SUSE Linux Micro 6.1",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sl-micro:6.1"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "shim-16.1-slfo.1.1_1.1.aarch64 as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:shim-16.1-slfo.1.1_1.1.aarch64"
        },
        "product_reference": "shim-16.1-slfo.1.1_1.1.aarch64",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      },
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "shim-16.1-slfo.1.1_1.1.x86_64 as component of SUSE Linux Micro 6.1",
          "product_id": "SUSE Linux Micro 6.1:shim-16.1-slfo.1.1_1.1.x86_64"
        },
        "product_reference": "shim-16.1-slfo.1.1_1.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Micro 6.1"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2024-2312",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-2312"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "GRUB2 does not call the module fini functions on exit, leading to Debian/Ubuntu\u0027s peimage GRUB2 module leaving UEFI system table hooks after exit. This lead to a use-after-free condition, and could possibly lead to secure boot bypass.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Micro 6.1:shim-16.1-slfo.1.1_1.1.aarch64",
          "SUSE Linux Micro 6.1:shim-16.1-slfo.1.1_1.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-2312",
          "url": "https://www.suse.com/security/cve/CVE-2024-2312"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1222868 for CVE-2024-2312",
          "url": "https://bugzilla.suse.com/1222868"
        }
      ],
      "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 6.1:shim-16.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:shim-16.1-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Micro 6.1:shim-16.1-slfo.1.1_1.1.aarch64",
            "SUSE Linux Micro 6.1:shim-16.1-slfo.1.1_1.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2026-01-01T13:54:36Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2024-2312"
    }
  ]
}