Critical severity · published Dec 16, 2025
CVE-2025-68284
libceph: prevent potential out-of-bounds writes in handle_auth_session_key()
9.8
CVSS
0.6%
EPSS
No
On KEV
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 ]
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.6% · higher than 48% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 before f22c55a20a2d9ffbbac57408d5d488cef8201e9d; 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 before 8dfcc56af28cffb8f25fb9be37b3acc61f2a3d09; 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 before ccbccfba25e9aa395daaea156b5e7790910054c4; 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 before 5ef575834ca99f719d7573cdece9df2fe2b72424; 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 before 6920ff09bf911bc919cd7a6b7176fbdd1a6e6850; 285ea34fc876aa0a2c5e65d310c4a41269e2e5f2 before 7fce830ecd0a0256590ee37eb65a39cbad3d64fc; +1 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-68284
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-68284
git.kernel.org
https://git.kernel.org/stable/c/5ef575834ca99f719d7573cdece9df2fe2b72424
git.kernel.org
https://git.kernel.org/stable/c/6920ff09bf911bc919cd7a6b7176fbdd1a6e6850
git.kernel.org
https://git.kernel.org/stable/c/7fce830ecd0a0256590ee37eb65a39cbad3d64fc
git.kernel.org
https://git.kernel.org/stable/c/8dfcc56af28cffb8f25fb9be37b3acc61f2a3d09
git.kernel.org
https://git.kernel.org/stable/c/ccbccfba25e9aa395daaea156b5e7790910054c4
git.kernel.org
https://git.kernel.org/stable/c/f22c55a20a2d9ffbbac57408d5d488cef8201e9d
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