CVE-2024-46719

low-risk
Published 2024-09-18

In the Linux kernel, the following vulnerability has been resolved: usb: typec: ucsi: Fix null pointer dereference in trace ucsi_register_altmode checks IS_ERR for the alt pointer and treats NULL as valid. When CONFIG_TYPEC_DP_ALTMODE is not enabled, ucsi_register_displayport returns NULL which causes a NULL pointer dereference in trace. Rather than return NULL, call typec_port_register_altmode to register DisplayPort alternate mode as a non-controllable mode when CONFIG_TYPEC_DP_ALTMODE is not enabled.

Do I need to act?

-
0.02% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
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Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
5
CVSS 5.5/10 Medium
LOCAL / LOW complexity

Affected Products (1)

Affected Vendors

Linux

References (9)

Patch https://git.kernel.org/stable/c/3aa56313b0de06ce1911950b2cc0c269614a87a9
Patch https://git.kernel.org/stable/c/3b9f2d9301ae67070fe77a0c06758722fd7172b7
Patch https://git.kernel.org/stable/c/7e64cabe81c303bdf6fd26b6a09a3289b33bc870
Patch https://git.kernel.org/stable/c/8095bf0579ed4906a33f7bec675bfb29b6b16a3b
Patch https://git.kernel.org/stable/c/99331fe68a8eaa4097143a33fb0c12d5e5e8e830
Patch https://git.kernel.org/stable/c/99516f76db48e1a9d54cdfed63c1babcee4e71a5
Patch https://git.kernel.org/stable/c/b4243c05d7e3db0bdbf9124e6fa59b4ca7c807ae
https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
23
/ 100
low-risk
Severity 18/34 · Moderate
Exploitability 0/34 · Minimal
Exposure 5/34 · Minimal