Release Date: | 2024-12-27 | |
Impact: | Moderate | What is this? |
In the Linux kernel, the following vulnerability has been resolved:
smb: client: fix NULL ptr deref in crypto_aead_setkey()
Neither SMB3.0 or SMB3.02 supports encryption negotiate context, so
when SMB2_GLOBAL_CAP_ENCRYPTION flag is set in the negotiate response,
the client uses AES-128-CCM as the default cipher. See MS-SMB2
3.3.5.4.
Commit b0abcd65ec54 ("smb: client: fix UAF in async decryption") added
a @server->cipher_type check to conditionally call
smb3_crypto_aead_allocate(), but that check would always be false as
@server->cipher_type is unset for SMB3.02.
Fix the following KASAN splat by setting @server->cipher_type for
SMB3.02 as well.
mount.cifs //srv/share /mnt -o vers=3.02,seal,...
BUG: KASAN: null-ptr-deref in crypto_aead_setkey+0x2c/0x130
Read of size 8 at addr 0000000000000020 by task mount.cifs/1095
CPU: 1 UID: 0 PID: 1095 Comm: mount.cifs Not tainted 6.12.0 #1
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-3.fc41
04/01/2014
Call Trace:
See more information about CVE-2024-53185 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
Base Score: | 5.5 |
Vector String: | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Version: | 3.1 |
Attack Vector: | Local |
Attack Complexity: | Low |
Privileges Required: | Low |
User Interaction: | None |
Scope: | Unchanged |
Confidentiality Impact: | None |
Integrity Impact: | None |
Availability Impact: | High |
Platform | Errata | Release Date |
Oracle Linux version 10 (kernel-uek) | ELSA-2025-20480 | 2025-07-17 |
Oracle Linux version 10 (kernel-uek) | ELSA-2025-20530 | 2025-08-18 |
Oracle Linux version 8 (kernel-uek) | ELSA-2025-20470 | 2025-07-14 |
Oracle Linux version 9 (kernel-uek) | ELSA-2025-20470 | 2025-07-14 |
Oracle Linux version 9 (kernel-uek) | ELSA-2025-20480 | 2025-07-17 |
Oracle Linux version 9 (kernel-uek) | ELSA-2025-20530 | 2025-08-18 |
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