---
id: CVE-2024-35823
title: |-
  In the Linux kernel, the following vulnerability has been resolved:

  vt: fix unicode buffer corruption when deleting characters

  This is the same issue that was fixed for the VGA text buffer in commit
  39cdb68c64d8 ("vt: fix memory overla…
summary: |-
  In the Linux kernel, the following vulnerability has been resolved:

  vt: fix unicode buffer corruption when deleting characters

  This is the same issue that was fixed for the VGA text buffer in commit
  39cdb68c64d8 ("vt: fix memory overla…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L'
cwe:
  - CWE-120
vendor: linux
product: linux_kernel
affected:
  - 'linux_kernel >= 3.7, < 4.19.312'
  - 'linux_kernel >= 4.20, < 5.4.274'
  - 'linux_kernel >= 5.5, < 5.10.215'
  - 'linux_kernel >= 5.11, < 5.15.154'
  - 'linux_kernel >= 5.16, < 6.1.84'
  - 'linux_kernel >= 6.2, < 6.6.24'
  - 'linux_kernel >= 6.7, < 6.7.12'
  - linux_kernel = 6.8
  - debian_linux = 10.0
patched:
  - linux_kernel 6.7.12
published: '2024-05-17'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T01:17:48.090'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2024-35823'
references:
  - url: 'https://git.kernel.org/stable/c/0190d19d7651c08abc187dac3819c61b726e7e3f'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1581dafaf0d34bc9c428a794a22110d7046d186d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/1ce408f75ccf1e25b3fddef75cca878b55f2ac90'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/2933b1e4757a0a5c689cf48d80b1a2a85f237ff1'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/7529cbd8b5f6697b369803fe1533612c039cabda'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/994a1e583c0c206c8ca7d03334a65b79f4d8bc51'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/fc7dfe3d123f00e720be80b920da287810a1f37d'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/ff7342090c1e8c5a37015c89822a68b275b46f8a'
    label: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
  - url: 'https://git.kernel.org/stable/c/0190d19d7651c08abc187dac3819c61b726e7e3f'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/1581dafaf0d34bc9c428a794a22110d7046d186d'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/1ce408f75ccf1e25b3fddef75cca878b55f2ac90'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/2933b1e4757a0a5c689cf48d80b1a2a85f237ff1'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/7529cbd8b5f6697b369803fe1533612c039cabda'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/994a1e583c0c206c8ca7d03334a65b79f4d8bc51'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/fc7dfe3d123f00e720be80b920da287810a1f37d'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://git.kernel.org/stable/c/ff7342090c1e8c5a37015c89822a68b275b46f8a'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html'
    label: af854a3a-2127-422b-91ae-364da2661108
  - url: 'https://cert-portal.siemens.com/productcert/html/ssa-265688.html'
    label: 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
tags:
  - nvd
  - cve.org
epss: 0.00915
epssPercentile: 0.59943
ingestedAt: '2026-10-15T03:30:12.681Z'
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2024-05-17T15:14:05.276566Z'
---

## Overview

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

vt: fix unicode buffer corruption when deleting characters

This is the same issue that was fixed for the VGA text buffer in commit
39cdb68c64d8 ("vt: fix memory overlapping when deleting chars in the
buffer"). The cure is also the same i.e. replace memcpy() with memmove()
due to the overlaping buffers.

## Affected

- `linux_kernel >= 3.7, < 4.19.312`
- `linux_kernel >= 4.20, < 5.4.274`
- `linux_kernel >= 5.5, < 5.10.215`
- `linux_kernel >= 5.11, < 5.15.154`
- `linux_kernel >= 5.16, < 6.1.84`
- `linux_kernel >= 6.2, < 6.6.24`
- `linux_kernel >= 6.7, < 6.7.12`
- `linux_kernel = 6.8`
- `debian_linux = 10.0`

## Remediation

Upgrade past the affected range:

- `linux_kernel 6.7.12`