5.5

CVE-2025-21844

smb: client: Add check for next_buffer in receive_encrypted_standard()

In the Linux kernel, the following vulnerability has been resolved:

smb: client: Add check for next_buffer in receive_encrypted_standard()

Add check for the return value of cifs_buf_get() and cifs_small_buf_get()
in receive_encrypted_standard() to prevent null pointer dereference.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 6.1.69 < 6.1.130
Linux ≫ Linux Kernel Version >= 6.6.8 < 6.6.80
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.17
Linux ≫ Linux Kernel Version >= 6.13 < 6.13.5
Linux ≫ Linux Kernel Version 5.10.211
Linux ≫ Linux Kernel Version 5.15.150
Linux ≫ Linux Kernel Version 6.14 Update rc1
Linux ≫ Linux Kernel Version 6.14 Update rc2
Linux ≫ Linux Kernel Version 6.14 Update rc3
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.6% 0.453
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA-ADP 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b
Patch
https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391
Patch
https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd
Patch
https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96
Patch
https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7
Patch
https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30
Patch
https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf
Patch
https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html
https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html
https://cert-portal.siemens.com/productcert/html/ssa-265688.html