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Back to active CVEs
Critical · CVSS 9.8CVE-2025-68284

libceph: prevent potential out-of-bounds writes in handle_auth_session_key()CVE-2025-68284

Answer in brief

CVE-2025-68284 records a Critical severity (CVSS 9.8) vulnerability in libceph: prevent potential out-of-bounds writes in handle_auth_session_key(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Dec 16, 2025Updated Oct 15, 2026Source checked Oct 15, 2026First seen by HOL Oct 15, 2026Material review Oct 15, 2026
Upstream Advisory

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
Not reported
Source
CVE List V5
Source checked
Oct 15, 2026
References
6 linked sources
Open source record

Key facts

Risk
Critical · CVSS 9.8
Exploitation
Not marked as known exploited
Affected software
2 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 9.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
Linux/Linuxgeneric>=285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 <f22c55a20a2d9ffbbac57408d5d488cef8201e9d || >=285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 <8dfcc56af28cffb8f25fb9be37b3acc61f2a3d09 || >=285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 <ccbccfba25e9aa395daaea156b5e7790910054c4 || >=285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 <5ef575834ca99f719d7573cdece9df2fe2b72424 || >=285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 <6920ff09bf911bc919cd7a6b7176fbdd1a6e6850 || >=285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 <7fce830ecd0a0256590ee37eb65a39cbad3d64fcf22c55a20a2d9ffbbac57408d5d488cef8201e9d, 8dfcc56af28cffb8f25fb9be37b3acc61f2a3d09, ccbccfba25e9aa395daaea156b5e7790910054c4, 5ef575834ca99f719d7573cdece9df2fe2b72424, 6920ff09bf911bc919cd7a6b7176fbdd1a6e6850, 7fce830ecd0a0256590ee37eb65a39cbad3d64fc
Linux/Linuxgeneric5.11Not reported

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for Linux/Linux, Linux/Linux.
  2. 2Review the reported fix. Update Linux/Linux to f22c55a20a2d9ffbbac57408d5d488cef8201e9d if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Dec 16, 2025

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Oct 15, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 15, 2026

Sources and claim methodology

  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
  • Source referencegit.kernel.org
Upstream source description

In the Linux kernel, the following vulnerability has been resolved: libceph: prevent potential out-of-bounds writes in handle_auth_session_key() The len field originates from untrusted network packets. Boundary checks have been added to prevent potential out-of-bounds writes when decrypting the connection secret or processing service tickets. [ idryomov: changelog ]

Quoted source text, attributed separately from HOL analysis.

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