CVE-2024-56745

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2024-56745
In the Linux kernel, the following vulnerability has been resolved: PCI: Fix reset_method_store() memory leak In reset_method_store(), a string is allocated via kstrndup() and assigned to the local "options". options is then used in with strsep() to find spaces: while ((name = strsep(&options, " ")) != NULL) { If there are no remaining spaces, then options is set to NULL by strsep(), so the subsequent kfree(options) doesn't free the memory allocated via kstrndup(). Fix by using a separate tmp_options to iterate with strsep() so options is preserved.

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/2985b1844f3f3447f2d938eff1ef6762592065a5 Patch
https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bd Patch
https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5 Patch
https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0 Patch
https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59 Patch
https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144f 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:*:*:*:*:*:*:*:*
History

07 Jan 2025, 22:47

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: PCI: Corregir pérdida de memoria de reset_method_store() En reset_method_store(), se asigna una cadena a través de kstrndup() y se asigna a las "opciones" locales. Luego, se usa options con strsep() para buscar espacios: while ((name = strsep(&options, " ")) != NULL) { Si no quedan espacios, strsep() establece options en NULL, por lo que el kfree(options) posterior no libera la memoria asignada a través de kstrndup(). Se soluciona utilizando un tmp_options separado para iterar con strsep() de modo que se preserve options.
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-401
First Time Linux
Linux linux Kernel
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
References () https://git.kernel.org/stable/c/2985b1844f3f3447f2d938eff1ef6762592065a5 - () https://git.kernel.org/stable/c/2985b1844f3f3447f2d938eff1ef6762592065a5 - Patch
References () https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bd - () https://git.kernel.org/stable/c/403efb4457c0c8f8f51e904cc57d39193780c6bd - Patch
References () https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5 - () https://git.kernel.org/stable/c/543d0eb40e45c6a51f1bff02f417b602e54472d5 - Patch
References () https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0 - () https://git.kernel.org/stable/c/8e098baf6bc3f3a6aefc383509aba07e202f7ee0 - Patch
References () https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59 - () https://git.kernel.org/stable/c/931d07ccffcc3614f20aaf602b31e89754e21c59 - Patch
References () https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144f - () https://git.kernel.org/stable/c/fe6fae61f3b993160aef5fe2b7141a83872c144f - Patch

29 Dec 2024, 12:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-12-29 12:15

Updated : 2025-01-07 22:47

NVD link : CVE-2024-56745

Mitre link : CVE-2024-56745

CVE.ORG link : CVE-2024-56745

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-401

Missing Release of Memory after Effective Lifetime