CVE-2025-21844
Samba Linux Kernel Null Pointer Dereference Vulnerability
Description
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.
INFO
Published Date :
March 12, 2025, 10:15 a.m.
Last Modified :
March 13, 2025, 4:21 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-21844.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-21844 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-21844 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Mar. 13, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Added CWE CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:5.15.150:*:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:5.10.211:*:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.14:rc3:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.13 from (excluding) 6.13.5 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.1.69 from (excluding) 6.1.130 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.6.8 from (excluding) 6.6.80 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 from (excluding) 6.12.17 Added Reference Type kernel.org: https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30 Types: Patch Added Reference Type kernel.org: https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf Types: Patch -
CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 13, 2025
Action Type Old Value New Value Added Reference https://git.kernel.org/stable/c/f277e479eea3d1aa18bc712abe1d2bf3dece2e30 Added Reference https://git.kernel.org/stable/c/f618aeb6cad2307e48a641379db610abcf593edf -
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Mar. 12, 2025
Action Type Old Value New Value Added Description 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. Added Reference https://git.kernel.org/stable/c/24e8e4523d3071bc5143b0db9127d511489f7b3b Added Reference https://git.kernel.org/stable/c/554736b583f529ee159aa95af9a0cbc12b5ffc96 Added Reference https://git.kernel.org/stable/c/860ca5e50f73c2a1cef7eefc9d39d04e275417f7 Added Reference https://git.kernel.org/stable/c/9e5d99a4cf2e23c716b44862975548415fae5391 Added Reference https://git.kernel.org/stable/c/a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-21844 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-21844
weaknesses.