CVE-2022-2327

2022-07-2210:15:08

CWE-415

CWE-416

Google

web.nvd.nist.gov

io_uring

work_flags

identity

ioring_op

kernel upgrade

double free

cve-2022-2327

nvd

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

12.6%

JSON

io_uring use work_flags to determine which identity need to grab from the calling process to make sure it is consistent with the calling process when executing IORING_OP. Some operations are missing some types, which can lead to incorrect reference counts which can then lead to a double free. We recommend upgrading the kernel past commit df3f3bb5059d20ef094d6b2f0256c4bf4127a859

Affected configurations

Nvd

Node

linuxlinux_kernelMatch-

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 Kernel",
    "product": "Linux Kernel",
    "versions": [
      {
        "version": "unspecified",
        "lessThan": "df3f3bb5059d20ef094d6b2f0256c4bf4127a859",
        "status": "affected",
        "versionType": "custom"
      }
    ]
  }
]