by Kastro
Paper/Archive/CVE-2025-71116

CVE-2025-71116

Linux Linux — libceph: make decode_pool() more resilient against corrupted osdmaps

EPSS 0.5%CVSS 9.1
critical.is priorityof 100
35
CVSS 9.1 (CNA)9.1 / 10 × 3027.3Not in CISA KEV+300.0EPSS percentile 39.7.397 × 207.9No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

In the Linux kernel, the following vulnerability has been resolved: libceph: make decode_pool() more resilient against corrupted osdmaps If the osdmap is (maliciously) corrupted such that the encoded length of ceph_pg_pool envelope is less than what is expected for a particular encoding version, out-of-bounds reads may ensue because the only bounds check that is there is based on that length value. This patch adds explicit bounds checks for each field that is decoded or skipped.

Affected

ProductAffectedFixed inSource
Linux4f6a7e5ee1393ec4b243b39dac9f36992d161540 – < d061be4c8040ffb1110d537654a038b8b6ad39d2d061be4c8040ffb1110d537654a038b8b6ad39d2CNA
Linux4f6a7e5ee1393ec4b243b39dac9f36992d161540 – < 145d140abda80e33331c5781d6603014fa75d258145d140abda80e33331c5781d6603014fa75d258CNA
Linux4f6a7e5ee1393ec4b243b39dac9f36992d161540 – < c82e39ff67353a5a6cbc07b786b8690bd2c45aaac82e39ff67353a5a6cbc07b786b8690bd2c45aaaCNA
Linux4f6a7e5ee1393ec4b243b39dac9f36992d161540 – < e927ab132b87ba3f076705fc2684d94b24201ed1e927ab132b87ba3f076705fc2684d94b24201ed1CNA
Linux4f6a7e5ee1393ec4b243b39dac9f36992d161540 – < 5d0d8c292531fe356c4e94dcfdf7d7212aca99575d0d8c292531fe356c4e94dcfdf7d7212aca9957CNA
Linux4f6a7e5ee1393ec4b243b39dac9f36992d161540 – < 2acb8517429ab42146c6c0ac1daed1f03d2fd1252acb8517429ab42146c6c0ac1daed1f03d2fd125CNA
Linux4f6a7e5ee1393ec4b243b39dac9f36992d161540 – < 8c738512714e8c0aa18f8a10c072d5b01c83db398c738512714e8c0aa18f8a10c072d5b01c83db39CNA
Linux3.9–CNA

Scores by source

Linux (CNA)9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
CISA ADPSSVCExploitation: none · Automatable: no · Technical impact: partial

References

refgit.kernel.org/stable/c/d061be4c8040ffb1110d537654a038b8b6ad39d2refgit.kernel.org/stable/c/145d140abda80e33331c5781d6603014fa75d258refgit.kernel.org/stable/c/c82e39ff67353a5a6cbc07b786b8690bd2c45aaarefgit.kernel.org/stable/c/e927ab132b87ba3f076705fc2684d94b24201ed1refgit.kernel.org/stable/c/5d0d8c292531fe356c4e94dcfdf7d7212aca9957refgit.kernel.org/stable/c/2acb8517429ab42146c6c0ac1daed1f03d2fd125refgit.kernel.org/stable/c/8c738512714e8c0aa18f8a10c072d5b01c83db39