{
  "threat_severity" : "Moderate",
  "public_date" : "2026-01-14T00:00:00Z",
  "bugzilla" : {
    "description" : "kernel: libceph: make decode_pool() more resilient against corrupted osdmaps",
    "id" : "2429602",
    "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2429602"
  },
  "cvss3" : {
    "cvss3_base_score" : "7.1",
    "cvss3_scoring_vector" : "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
    "status" : "verified"
  },
  "cwe" : "CWE-125",
  "details" : [ "In the Linux kernel, the following vulnerability has been resolved:\nlibceph: make decode_pool() more resilient against corrupted osdmaps\nIf the osdmap is (maliciously) corrupted such that the encoded length\nof ceph_pg_pool envelope is less than what is expected for a particular\nencoding version, out-of-bounds reads may ensue because the only bounds\ncheck that is there is based on that length value.\nThis patch adds explicit bounds checks for each field that is decoded\nor skipped." ],
  "statement" : "The Ceph client could perform out-of-bounds reads when decoding a corrupted or maliciously crafted osdmap, because the parser trusted length fields without validating each decoded or skipped element. This allows a remote Ceph peer to crash the kernel and cause a denial of service.\nAlthough this issue is triggered over an authenticated Ceph connection, the attack direction is from the server side (OSD/monitor) to the client. Any compromised or malfunctioning Ceph node can provide a malformed osdmap that is parsed in the kernel, breaking Ceph’s security model which assumes that no cluster component should be able to crash or compromise a client, even over an authorized channel.",
  "affected_release" : [ {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-20T00:00:00Z",
    "advisory" : "RHSA-2026:19568",
    "cpe" : "cpe:/a:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.10.1.el9_8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "release_date" : "2026-05-20T00:00:00Z",
    "advisory" : "RHSA-2026:19568",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9",
    "package" : "kernel-0:5.14.0-687.10.1.el9_8"
  } ],
  "package_state" : [ {
    "product_name" : "Red Hat Enterprise Linux 10",
    "fix_state" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:10"
  }, {
    "product_name" : "Red Hat Enterprise Linux 6",
    "fix_state" : "Not affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:6"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 7",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:7"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Affected",
    "package_name" : "kernel",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 8",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:8"
  }, {
    "product_name" : "Red Hat Enterprise Linux 9",
    "fix_state" : "Affected",
    "package_name" : "kernel-rt",
    "cpe" : "cpe:/o:redhat:enterprise_linux:9"
  } ],
  "references" : [ "https://www.cve.org/CVERecord?id=CVE-2025-71116\nhttps://nvd.nist.gov/vuln/detail/CVE-2025-71116\nhttps://lore.kernel.org/linux-cve-announce/2026011414-CVE-2025-71116-e57d@gregkh/T" ],
  "name" : "CVE-2025-71116",
  "mitigation" : {
    "value" : "To mitigate this issue and if Ceph not being used, then prevent module libceph from being loaded. Please see https://access.redhat.com/solutions/41278 for how to blacklist a kernel module to prevent it from loading automatically.",
    "lang" : "en:us"
  },
  "csaw" : false
}