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.

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable no

Technical Impact partial

Affected Vendors & Products

Vendors Products
Linux
  • Linux Kernel

Configuration 1 [-]

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

No data.

References
Link Providers
https://git.kernel.org/stable/c/3aa56313b0de06ce1911950b2cc0c269614a87a9 cve-icon cve-icon
https://git.kernel.org/stable/c/3b9f2d9301ae67070fe77a0c06758722fd7172b7 cve-icon cve-icon
https://git.kernel.org/stable/c/7e64cabe81c303bdf6fd26b6a09a3289b33bc870 cve-icon cve-icon
https://git.kernel.org/stable/c/8095bf0579ed4906a33f7bec675bfb29b6b16a3b cve-icon cve-icon
https://git.kernel.org/stable/c/99331fe68a8eaa4097143a33fb0c12d5e5e8e830 cve-icon cve-icon
https://git.kernel.org/stable/c/99516f76db48e1a9d54cdfed63c1babcee4e71a5 cve-icon cve-icon
https://git.kernel.org/stable/c/b4243c05d7e3db0bdbf9124e6fa59b4ca7c807ae cve-icon cve-icon
https://lore.kernel.org/linux-cve-announce/2024091834-CVE-2024-46719-4a53@gregkh/T cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2024-46719 cve-icon
https://www.cve.org/CVERecord?id=CVE-2024-46719 cve-icon
History

Sun, 29 Sep 2024 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Fri, 20 Sep 2024 18:45:00 +0000

Type Values Removed Values Added
First Time appeared Linux
Linux linux Kernel
Weaknesses CWE-476
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel

Wed, 18 Sep 2024 14:15:00 +0000

Type Values Removed Values Added
References
Metrics threat_severity

None

 cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Low

Wed, 18 Sep 2024 06:45:00 +0000

Type Values Removed Values Added
Description 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.
Title usb: typec: ucsi: Fix null pointer dereference in trace
References
cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2024-09-18T06:32:18.028Z

Updated: 2024-09-29T14:57:35.846Z

Reserved: 2024-09-11T15:12:18.255Z

Link: CVE-2024-46719

cve-icon Vulnrichment

Updated: 2024-09-29T14:57:25.758Z

cve-icon NVD

Status : Analyzed

Published: 2024-09-18T07:15:03.357

Modified: 2024-09-20T18:21:49.963

Link: CVE-2024-46719

cve-icon Redhat

Severity : Low

Publid Date: 2024-09-18T00:00:00Z

Links: CVE-2024-46719 - Bugzilla