CVE-2024-35823: vt: fix unicode buffer corruption when deleting characters

Published May 17, 2024
·
Updated

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

vt: fix unicode buffer corruption when deleting characters

The Linux kernel CVE team has assigned CVE-2024-35823 to this issue.

Upstream advisory: https://lore.kernel.org/linux-cve-announce/2024051745-CVE-2024-35823-1e69@gregkh/T

Other sources

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.

NVD

Affected Software

27 affected componentsFixes available
redhat/kernel<4.19.312
4.19.312
redhat/kernel<5.4.274
5.4.274
redhat/kernel<5.10.215
5.10.215
redhat/kernel<5.15.154
5.15.154
redhat/kernel<6.1.84
6.1.84
redhat/kernel<6.6.24
6.6.24
redhat/kernel<6.7.12
6.7.12
redhat/kernel<6.8
6.8
Linux Linux kernel>=3.7<4.19.312
Linux Linux kernel>=4.20<5.4.274
Linux Linux kernel>=5.5<5.10.215
Linux Linux kernel>=5.11<5.15.154
Linux Linux kernel>=5.16<6.1.84
Linux Linux kernel>=6.2<6.6.24
Linux Linux kernel>=6.7<6.7.12
Linux Linux kernel=6.8-rc1
Linux Linux kernel=6.8-rc2
Linux Linux kernel=6.8-rc3
Linux Linux kernel=6.8-rc4
Linux Linux kernel=6.8-rc5
Linux Linux kernel=6.8-rc6
Debian Debian Linux=10.0
IBM Security Verify Governance<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Software Stack<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager Virtual Appliance<=ISVG 10.0.2
IBM Security Verify Governance Identity Manager Container<=ISVG 10.0.2
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.25-16.12.27-1

Event History

May 17, 2024
CVE Published
via MITRE·01:23 PM
Data Sourced
via MITRE·01:23 PM
Description
Data Sourced
via NVD·02:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via Red Hat·11:17 PM
DescriptionSeverityAffected Software
Jul 12, 2024
Data Sourced
via Launchpad·02:47 PM
Description
May 1, 2025
Data Sourced
via Ubuntu·12:18 AM
RemedyDescriptionSeverityAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2024-35823?

The severity of CVE-2024-35823 is classified as moderate.

2

How do I fix CVE-2024-35823?

To fix CVE-2024-35823, update the Linux kernel to a version that is patched, such as 4.19.312, 5.4.274, or later versions.

3

Which Linux kernel versions are affected by CVE-2024-35823?

CVE-2024-35823 affects various kernel versions including any prior to 4.19.312, 5.4.274, 5.10.215, 5.15.154, 6.1.84, 6.6.24, and 6.7.12.

4

Is CVE-2024-35823 specific to any Linux distributions?

CVE-2024-35823 has been identified in the Linux kernel and pertains to multiple distributions, including Red Hat and Debian.

5

What type of vulnerability is CVE-2024-35823?

CVE-2024-35823 is a buffer corruption vulnerability related to unicode handling in the Linux kernel.

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