CVE-2025-21844

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Source
https://cve.org/CVERecord?id=CVE-2025-21844
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21844.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-21844
Downstream
Related
Published
2025-03-12T09:42:00.435Z
Modified
2026-03-20T12:41:12.184240Z
Severity
  • 5.5 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
smb: client: Add check for next_buffer in receive_encrypted_standard()
Details

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

smb: client: Add check for nextbuffer in receiveencrypted_standard()

Add check for the return value of cifsbufget() and cifssmallbufget() in receiveencrypted_standard() to prevent null pointer dereference.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/21xxx/CVE-2025-21844.json",
    "cna_assigner": "Linux"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
b03c8099a738a04d2343547ae6a04e5f0f63d3fa
Fixed
f277e479eea3d1aa18bc712abe1d2bf3dece2e30
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
858e73ff25639a0cc1f6f8d2587b62c045867e41
Fixed
f618aeb6cad2307e48a641379db610abcf593edf
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
9f528a8e68327117837b5e28b096f52af4c26a05
Fixed
24e8e4523d3071bc5143b0db9127d511489f7b3b
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
534733397da26de0303057ce0b93a22bda150365
Fixed
9e5d99a4cf2e23c716b44862975548415fae5391
Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
eec04ea119691e65227a97ce53c0da6b9b74b0b7
Fixed
a9b0b4b29877cb4dc5d0842b59b5ccbacddb85bd
Fixed
554736b583f529ee159aa95af9a0cbc12b5ffc96
Fixed
860ca5e50f73c2a1cef7eefc9d39d04e275417f7

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-21844.json"