CVE-2024-42236

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-42236
In the Linux kernel, the following vulnerability has been resolved: usb: gadget: configfs: Prevent OOB read/write in usb_string_copy() Userspace provided string 's' could trivially have the length zero. Left unchecked this will firstly result in an OOB read in the form `if (str[0 - 1] == '\n') followed closely by an OOB write in the form `str[0 - 1] = '\0'`. There is already a validating check to catch strings that are too long. Let's supply an additional check for invalid strings that are too short.

5.5 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://git.kernel.org/stable/c/2d16f63d8030903e5031853e79d731ee5d474e70 Patch
https://git.kernel.org/stable/c/6d3c721e686ea6c59e18289b400cc95c76e927e0 Patch
https://git.kernel.org/stable/c/72b8ee0d9826e8ed00e0bdfce3e46b98419b37ce Patch
https://git.kernel.org/stable/c/a444c3fc264119801575ab086e03fb4952f23fd0 Patch
https://git.kernel.org/stable/c/c95fbdde87e39e5e0ae27f28bf6711edfb985caa Patch
https://git.kernel.org/stable/c/d1205033e912f9332c1dbefa812e6ceb0575ce0a Patch
https://git.kernel.org/stable/c/e8474a10c535e6a2024c3b06e37e4a3a23beb490 Patch
https://git.kernel.org/stable/c/eecfefad0953b2f31aaefa058f7f348ff39c4bba Patch
Configurations

Configuration 1 (hide)

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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
History

08 Aug 2024, 14:54

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: usb: gadget: configfs: Evitar lectura/escritura OOB en usb_string_copy() Las cadenas 's' proporcionadas por el espacio de usuario podrían tener trivialmente una longitud cero. Si no se marca, esto dará como resultado en primer lugar una lectura OOB en el formato `if (str[0 - 1] == '\n') seguida de cerca por una escritura OOB en el formato `str[0 - 1] = '\0' `. Ya existe una verificación de validación para detectar cadenas que son demasiado largas. Proporcionemos una verificación adicional para cadenas no válidas que sean demasiado cortas.
References () https://git.kernel.org/stable/c/2d16f63d8030903e5031853e79d731ee5d474e70 - () https://git.kernel.org/stable/c/2d16f63d8030903e5031853e79d731ee5d474e70 - Patch
References () https://git.kernel.org/stable/c/6d3c721e686ea6c59e18289b400cc95c76e927e0 - () https://git.kernel.org/stable/c/6d3c721e686ea6c59e18289b400cc95c76e927e0 - Patch
References () https://git.kernel.org/stable/c/72b8ee0d9826e8ed00e0bdfce3e46b98419b37ce - () https://git.kernel.org/stable/c/72b8ee0d9826e8ed00e0bdfce3e46b98419b37ce - Patch
References () https://git.kernel.org/stable/c/a444c3fc264119801575ab086e03fb4952f23fd0 - () https://git.kernel.org/stable/c/a444c3fc264119801575ab086e03fb4952f23fd0 - Patch
References () https://git.kernel.org/stable/c/c95fbdde87e39e5e0ae27f28bf6711edfb985caa - () https://git.kernel.org/stable/c/c95fbdde87e39e5e0ae27f28bf6711edfb985caa - Patch
References () https://git.kernel.org/stable/c/d1205033e912f9332c1dbefa812e6ceb0575ce0a - () https://git.kernel.org/stable/c/d1205033e912f9332c1dbefa812e6ceb0575ce0a - Patch
References () https://git.kernel.org/stable/c/e8474a10c535e6a2024c3b06e37e4a3a23beb490 - () https://git.kernel.org/stable/c/e8474a10c535e6a2024c3b06e37e4a3a23beb490 - Patch
References () https://git.kernel.org/stable/c/eecfefad0953b2f31aaefa058f7f348ff39c4bba - () https://git.kernel.org/stable/c/eecfefad0953b2f31aaefa058f7f348ff39c4bba - Patch
CWE CWE-787
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
First Time Linux linux Kernel
Linux

07 Aug 2024, 16:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-08-07 16:15

Updated : 2024-08-08 14:54

NVD link : CVE-2024-42236

Mitre link : CVE-2024-42236

CVE.ORG link : CVE-2024-42236

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-787

Out-of-bounds Write