CVE-2024-50134

CVE Details

Release Date:	2024-11-05
Impact:	Moderate	What is this?

Description

In the Linux kernel, the following vulnerability has been resolved:\ndrm/vboxvideo: Replace fake VLA at end of vbva_mouse_pointer_shape with real VLA\nReplace the fake VLA at end of the vbva_mouse_pointer_shape shape with\na real VLA to fix a 'memcpy: detected field-spanning write error' warning:\n[ 13.319813] memcpy: detected field-spanning write (size 16896) of single field 'p->data' at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 (size 4)\n[ 13.319841] WARNING: CPU: 0 PID: 1105 at drivers/gpu/drm/vboxvideo/hgsmi_base.c:154 hgsmi_update_pointer_shape+0x192/0x1c0 [vboxvideo]\n[ 13.320038] Call Trace:\n[ 13.320173] hgsmi_update_pointer_shape [vboxvideo]\n[ 13.320184] vbox_cursor_atomic_update [vboxvideo]\nNote as mentioned in the added comment it seems the original length\ncalculation for the allocated and send hgsmi buffer is 4 bytes too large.\nChanging this is not the goal of this patch, so this behavior is kept.

See more information about CVE-2024-50134 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	5.5
Vector String:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2024-12884	2024-12-16
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12884	2024-12-16
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12887	2024-12-18
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12887	2024-12-18