PT-2025-38368 · Mediatek+2 · Mediatek Displayport+2

Published 2025-09-18 · Updated 2025-09-19 · CVE-2023-53389

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description The MediaTek DisplayPort interface bridge driver initiates interrupts immediately after probing. If the bridge isn't yet connected to a DRM device, a NULL pointer dereference can occur within the drm helper hpd irq event() function because it doesn't validate the drm device pointer. This issue is resolved by ensuring an HPD event is triggered only when the bridge is attached.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2023-53389

Affected Products

Astra Linux

Linux Kernel

Mediatek Displayport

References · 18

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53389.json · Exploit
• https://git.kernel.org/stable/c/6524d3d58797975cc40b85be1e9b89721b4e8d0b · Patch
• https://osv.dev/vulnerability/BELL-CVE-2023-53389 · Vendor Advisory
• https://git.kernel.org/stable/c/3551789d0635dfb2df8ab8e7fdbf0647e9c1724c · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2023-53389 · Vendor Advisory
• https://git.kernel.org/stable/c/36b617f7e4ae663fcadd202ea061ca695ca75539 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2023-53389 · Security Note
• https://ubuntu.com/security/CVE-2023-53389 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2023-53389 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2023-53389 · Vendor Advisory
• https://git.kernel.org/stable/c/d1c04e338016ae2517c641806a831b1f3eee2bed · Patch
• https://security-tracker.debian.org/tracker/CVE-2023-53389 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-53389 · Vendor Advisory
• https://git.kernel.org/linus/36b617f7e4ae663fcadd202ea061ca695ca75539 · Note
• https://twitter.com/CVEnew/status/1968718127744827633 · Twitter Post