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CVE-2026-43407 libceph: Fix potential out-of-bounds access in ceph_handle_auth_reply()

🗓️ 08 May 2026 14:21:46Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 26 Views

libceph fixes a bounds issue in auth reply handling making payload_len and result_msg_len 32 bit.

Related
Affected
Refs
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ceph/auth.c"
    ],
    "versions": [
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "ea080b21092590122c3f971cf588932cdbf47847",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "edc678e5cd11730a2834b43071d8923f05bc334d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "6cee34d6669fe176b4259131adb1a145c939b472",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "8bb87547e92dcf0928ed763c60e0ac8d733c3656",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "ed024d2f4c79c0eb2464df0fb640610ac301f9a0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "f9da5c1bbac5c8e33259fe00ed7347438fffa969",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "9f9e2297f45fc2d2524eb104c289d69ddef95665",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4e7a5dcd1bbab6560fbc8ada29a840e7a20ed7bc",
        "lessThan": "b282c43ed156ae15ea76748fc15cd5c39dc9ab72",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/ceph/auth.c"
    ],
    "versions": [
      {
        "version": "2.6.34",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.34",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.253",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.203",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.167",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.130",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.78",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.19",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.9",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:23Current
CVSS 3.19.1
EPSS0.00537
26