CVE-2024-46742

MEDIUM EPSS 14.7%
Published Sep 18, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 18, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix potential null-ptr-deref of lease_ctx_info in smb2_open() null-ptr-deref will occur when (req_op_level == SMB2_OPLOCK_LEVEL_LEASE) and parse_lease_state() return NULL. Fix this by check if 'lease_ctx_info' is NULL. Additionally, remove the redundant parentheses in parse_durable_handle_context().

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
14.7% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 6

VendorProductVersionRange
linuxlinux_kernel* <6.6.51
linuxlinux_kernel*≥6.7  –  <6.10.10
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any
linuxlinux_kernel6.11any

References 6

  • git.kernel.org https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/878f32878351104448b86ef5b85d1f8ed6f599fb
  • git.kernel.org https://git.kernel.org/stable/c/ec28c35029b7930f31117f9284874b63bea4f31b
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/07f384c5be1f8633b13f0a22616e227570450bc6
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/3b692794b81f2ecad69a4adbba687f3836824ada
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/4e8771a3666c8f216eefd6bd2fd50121c6c437db
    Patch