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LinuxCVE-2022-48804

HistoryJul 16, 2024 - 12:15 p.m.

CVE-2022-48804

2024-07-1612:15:04

CWE-191

Linux

web.nvd.nist.gov

linux kernel

vt_ioctl vulnerability

array_index_nospec

transient integer underflow

vusec group

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

6.5

Confidence

High

EPSS

Percentile

5.1%

JSON

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

vt_ioctl: fix array_index_nospec in vt_setactivate

array_index_nospec ensures that an out-of-bounds value is set to zero
on the transient path. Decreasing the value by one afterwards causes
a transient integer underflow. vsa.console should be decreased first
and then sanitized with array_index_nospec.

Kasper Acknowledgements: Jakob Koschel, Brian Johannesmeyer, Kaveh
Razavi, Herbert Bos, Cristiano Giuffrida from the VUSec group at VU
Amsterdam.

Affected configurations

Nvd

Vulners

Node

linuxlinux_kernelRange<4.9.302

linuxlinux_kernelRange4.10–4.14.267

linuxlinux_kernelRange4.15–4.19.320

linuxlinux_kernelRange4.20–5.4.180

linuxlinux_kernelRange5.5–5.10.101

linuxlinux_kernelRange5.11–5.15.24

linuxlinux_kernelRange5.16–5.16.10

linuxlinux_kernelMatch5.17rc1

linuxlinux_kernelMatch5.17rc2

linuxlinux_kernelMatch5.17rc3

VendorProductVersionCPE
linuxlinux_kernel*cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linuxlinux_kernel5.17cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*
linuxlinux_kernel5.17cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*
linuxlinux_kernel5.17cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*

Vendor	Product	Version	CPE
linux	linux_kernel	*	cpe:2.3:o:linux:linux_kernel::::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc1::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc2::::::
linux	linux_kernel	5.17	cpe:2.3:o:linux:linux_kernel:5.17:rc3::::::

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/vt/vt_ioctl.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f4",
        "lessThan": "830c5aa302ec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "2a45a6bd1e6d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "170325aba460",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "ae3d57411562",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "778302ca0949",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "ffe54289b02e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "6550bdf52846",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f4",
        "lessThan": "61cc70d9e8ef",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/tty/vt/vt_ioctl.c"
    ],
    "versions": [
      {
        "version": "4.9.302",
        "lessThanOrEqual": "4.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.14.267",
        "lessThanOrEqual": "4.14.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.230",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.180",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.101",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.24",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.16.10",
        "lessThanOrEqual": "5.16.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.17",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]