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 ]
References6
- git.kernel.org/stable/c/5ef575834ca99f719d7573cdece9df2fe2b72424
- git.kernel.org/stable/c/6920ff09bf911bc919cd7a6b7176fbdd1a6e6850
- git.kernel.org/stable/c/7fce830ecd0a0256590ee37eb65a39cbad3d64fc
- git.kernel.org/stable/c/8dfcc56af28cffb8f25fb9be37b3acc61f2a3d09
- git.kernel.org/stable/c/ccbccfba25e9aa395daaea156b5e7790910054c4
- git.kernel.org/stable/c/f22c55a20a2d9ffbbac57408d5d488cef8201e9d
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 49 · as of 11 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.