{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "513a8243d67f8e8d27f2883bd2f18bc87c7ca376"
            },
            {
              "fixed": "340e0386aa39da181015bee38f309018c335ce16"
            },
            {
              "fixed": "d60de8253c85a02d0e6194b0735e7a562981a04c"
            },
            {
              "fixed": "4e7ebfaa0d14cf50e44041bfde38070d6dbc019f"
            },
            {
              "fixed": "0d934c934ec746d53fc7e4f53239792647bbae63"
            },
            {
              "fixed": "d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.16.0"
            },
            {
              "fixed": "6.6.148"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.101"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.42"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68433.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: bound get_version reply decode to front len\n\nhandle_get_version_reply() uses msg-\u003efront_alloc_len as the decode\nboundary for MON_GET_VERSION_REPLY.  That is the size of the reused\nreply buffer, not the number of bytes actually received.\n\nA truncated reply can therefore pass ceph_decode_need() and decode the\nsecond u64 from stale tail bytes left in the buffer by an earlier\nmessage, causing an uninitialized memory read.\n\nUse msg-\u003efront.iov_len as the receive-side decode boundary, matching\nother libceph reply handlers and limiting decoding to the bytes that\nwere actually read from the wire.",
  "id": "CVE-2026-68433",
  "modified": "2026-08-18T03:31:08.234216065Z",
  "published": "2026-08-12T00:07:20.455Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0d934c934ec746d53fc7e4f53239792647bbae63"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/340e0386aa39da181015bee38f309018c335ce16"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4e7ebfaa0d14cf50e44041bfde38070d6dbc019f"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d60de8253c85a02d0e6194b0735e7a562981a04c"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/68xxx/CVE-2026-68433.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68433"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "libceph: bound get_version reply decode to front len"
}