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GoogleCVE-2023-5345

HistoryOct 03, 2023 - 3:15 a.m.

CVE-2023-5345

2023-10-0303:15:09

CWE-416

Google

web.nvd.nist.gov

443

cve-2023-5345

linux kernel

fs/smb/client

use-after-free

local privilege escalation

smb3_fs_context_parse_param

double free

CVSS3

7.8

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

AI Score

7.4

Confidence

High

EPSS

Percentile

5.1%

JSON

A use-after-free vulnerability in the Linux kernel’s fs/smb/client component can be exploited to achieve local privilege escalation.

In case of an error in smb3_fs_context_parse_param, ctx->password was freed but the field was not set to NULL which could lead to double free.

We recommend upgrading past commit e6e43b8aa7cd3c3af686caf0c2e11819a886d705.

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange6.0.16–6.1.56

linuxlinux_kernelRange6.2–6.5.6

linuxlinux_kernelMatch6.6rc1

linuxlinux_kernelMatch6.6rc2

linuxlinux_kernelMatch6.6rc3

Node

fedoraprojectfedoraMatch37

fedoraprojectfedoraMatch38

fedoraprojectfedoraMatch39

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::

CNA Affected

[
  {
    "vendor": "Linux",
    "product": "Kernel",
    "packageName": "kernel",
    "repo": "https://git.kernel.org",
    "versions": [
      {
        "status": "affected",
        "version": "0.0",
        "lessThan": "6.6",
        "versionType": "custom"
      }
    ],
    "defaultStatus": "unaffected"
  }
]