CVE-2024-35823

vt: fix unicode buffer corruption when deleting characters

MEDIUM
5.3
CVSS Score
Published: May 17, 2024 at 01:23 PM UTC
Updated: October 15, 2026 at 01:17 AM UTC
3 products affected across 3 vendorsLinux KernelDebian LinuxSIMATIC S7-1500 TM MFP

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.9%
SSVC
No known exploit

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

3.7 ≤ v < 4.19.3124.20 ≤ v < 5.4.2745.11 ≤ v < 5.15.1545.16 ≤ v < 6.1.845.5 ≤ v < 5.10.2156.2 ≤ v < 6.6.246.7 ≤ v < 6.7.126.86.8 rc16.8 rc26.8 rc36.8 rc46.8 rc56.8 rc681732c3b2fede049a692e58a7ceabb6d18ffb18c
Vendor states this is fixed in 0190d19d7651c08abc187dac3819c61b726e7e3f (fixed)
Vendor states this is fixed in 1581dafaf0d34bc9c428a794a22110d7046d186d (fixed)
Vendor states this is fixed in 1ce408f75ccf1e25b3fddef75cca878b55f2ac90 (fixed)
Vendor states this is fixed in 2933b1e4757a0a5c689cf48d80b1a2a85f237ff1 (fixed)
Vendor states this is fixed in 7529cbd8b5f6697b369803fe1533612c039cabda (fixed)
Vendor states this is fixed in 994a1e583c0c206c8ca7d03334a65b79f4d8bc51 (fixed)
Vendor states this is fixed in fc7dfe3d123f00e720be80b920da287810a1f37d (fixed)
Vendor states this is fixed in ff7342090c1e8c5a37015c89822a68b275b46f8a (fixed)
Vendor states this is fixed in 3.7 (unaffected)
Vendor states this is fixed in 4.19.312 (unaffected)
Vendor states this is fixed in 5.10.215 (unaffected)
Vendor states this is fixed in 5.15.154 (unaffected)
Vendor states this is fixed in 5.4.274 (unaffected)
Vendor states this is fixed in 6.1.84 (unaffected)
Vendor states this is fixed in 6.6.24 (unaffected)
Vendor states this is fixed in 6.7.12 (unaffected)
Vendor states this is fixed in 6.8 (unaffected)

References (11)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/0190d19d7651c08abc187dac3819c61b726e7e3f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1581dafaf0d34bc9c428a794a22110d7046d186d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/1ce408f75ccf1e25b3fddef75cca878b55f2ac90
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/2933b1e4757a0a5c689cf48d80b1a2a85f237ff1
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/7529cbd8b5f6697b369803fe1533612c039cabda
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/994a1e583c0c206c8ca7d03334a65b79f4d8bc51
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/fc7dfe3d123f00e720be80b920da287810a1f37d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ff7342090c1e8c5a37015c89822a68b275b46f8a

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-120

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