CVE-2025-68819

In the Linux kernel, the following vulnerability has been resolved: media: dvb-usb: dtv5100: fix out-of-bounds in dtv5100_i2c_msg() rlen value is a user-controlled value, but dtv5100_i2c_msg() does not check the size of the rlen value. Therefore, if it is set to a value larger than sizeof(st->data), an out-of-bounds vuln occurs for st->data. Therefore, we need to add proper range checking to prevent this vuln.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/4a54d8fcb093761e4c56eb211cf4e39bf8401fa1
https://git.kernel.org/stable/c/61f214a878e96e2a8750bf96a98f78c658dba60c
https://git.kernel.org/stable/c/ac92151ff2494130d9fc686055d6bbb9743a673e
https://git.kernel.org/stable/c/b91e6aafe8d356086cc621bc03e35ba2299e4788
https://git.kernel.org/stable/c/c2305b4c5fc15e20ac06c35738e0578eb4323750
https://git.kernel.org/stable/c/c2c293ea7b61f12cdaad1e99a5b4efc58c88960a
https://git.kernel.org/stable/c/fe3e129ab49806aaaa3f22067ebc75c2dfbe4658

Configurations

No configuration.

History

19 Oct 2026, 19:17

Type	Values Removed	Values Added
CWE		CWE-787

Information

Published : 2026-01-13 16:16

Updated : 2026-10-19 19:17

NVD link : CVE-2025-68819

Mitre link : CVE-2025-68819

CVE.ORG link : CVE-2025-68819

JSON object : View

Products Affected

No product.

CWE

CWE-787

Out-of-bounds Write

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Therefore, if it is set to a value\nlarger than sizeof(st->data), an out-of-bounds vuln occurs for st->data.\n\nTherefore, we need to add proper range checking to prevent this vuln."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nmedia: dvb-usb: dtv5100: correcci\u00f3n de acceso fuera de l\u00edmites en dtv5100_i2c_msg()\n\nEl valor de rlen es un valor controlado por el usuario, pero dtv5100_i2c_msg() no verifica el tama\u00f1o del valor de rlen. Por lo tanto, si se establece en un valor mayor que sizeof(st->data), ocurre una vulnerabilidad de acceso fuera de l\u00edmites para st->data.\n\nPor lo tanto, necesitamos a\u00f1adir una verificaci\u00f3n de rango adecuada para prevenir esta vulnerabilidad."}], "lastModified": "2026-10-19T19:17:07.230", "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}