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        "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.",
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        "name": "Out-of-bounds Read"
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          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nlibceph: Fix potential out-of-bounds access in __ceph_x_decrypt()\n\nIn __ceph_x_decrypt(), a part of the buffer p is interpreted as a\nceph_x_encrypt_header, and the magic field of this struct is accessed.\nThis happens without any guarantee that the buffer is large enough to\nhold this struct. The function parameter ciphertext_len represents the\nlength of the ciphertext to decrypt and is guaranteed to be at most the\nremaining size of the allocated buffer p. However, this value is not\nnecessarily greater than sizeof(ceph_x_encrypt_header). E.g., a message\nframe of type FRAME_TAG_AUTH_REPLY_MORE, that is just as long to hold\nthe ciphertext at its end with a ciphertext_len of 8 or less, can\ntrigger an out-of-bounds memory access when accessing hdr->magic.\n\nThis patch fixes the issue by adding a check to ensure that the\ndecrypted plaintext in the buffer is large enough to represent at least\nthe ceph_x_encrypt_header.",
          "title": "Vulnerability description"
        }
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          "category": "self",
          "summary": "Canonical URL",
          "url": "https://cve.tuxcare.com/els/cve/CVE-2026-52956"
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          "date": "2026-10-19T09:19:41.057926Z",
          "details": "Details on how to apply the fix are available at: https://cve.tuxcare.com/els/releases/CLSA-2026:1792401579",
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            "Amazon-Linux-2:kernel-devel-0:5.10.272-271.1109.amzn2.tuxcare.els1.x86_64",
            "Amazon-Linux-2:kernel-headers-0:5.10.272-271.1109.amzn2.tuxcare.els1.x86_64",
            "Amazon-Linux-2:kernel-tools-0:5.10.272-271.1109.amzn2.tuxcare.els1.x86_64",
            "Amazon-Linux-2:kernel-tools-devel-0:5.10.272-271.1109.amzn2.tuxcare.els1.x86_64",
            "Amazon-Linux-2:perf-0:5.10.272-271.1109.amzn2.tuxcare.els1.x86_64",
            "Amazon-Linux-2:python-perf-0:5.10.272-271.1109.amzn2.tuxcare.els1.x86_64"
          ],
          "url": "https://cve.tuxcare.com/els/releases/CLSA-2026:1792401579"
        },
        {
          "category": "none_available",
          "date": "2026-06-24T17:17:00Z",
          "details": "Affected",
          "product_ids": [
            "Amazon-Linux-2:bpftool-0:5.10.259-258.1046.amzn2.tuxcare.els1.x86_64",
            "Amazon-Linux-2:bpftool-0:5.10.259-258.1046.amzn2.tuxcare.els2.x86_64",
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            "Amazon-Linux-2:perf-0:5.10.259-258.1046.amzn2.tuxcare.els2.x86_64",
            "Amazon-Linux-2:perf-0:5.10.272-271.1109.amzn2.x86_64",
            "Amazon-Linux-2:python-perf-0:5.10.259-258.1046.amzn2.tuxcare.els1.x86_64",
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          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ]
    }
  ]
}