CVE-2020-36788

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2020-36788
In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: avoid a use-after-free when BO init fails nouveau_bo_init() is backed by ttm_bo_init() and ferries its return code back to the caller. On failures, ttm_bo_init() invokes the provided destructor which should de-initialize and free the memory. Thus, when nouveau_bo_init() returns an error the gem object has already been released and the memory freed by nouveau_bo_del_ttm().

7.8 /10

CVSS v3 : HIGH

V3 Legend

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/548f2ff8ea5e0ce767ae3418d1ec5308990be87d Patch
https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54 Patch
https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 Patch
https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d Patch
https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54 Patch
https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 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:5.15:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
History

11 Dec 2024, 16:37

Type Values Removed Values Added
First Time Linux
Linux linux Kernel
References () https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d - () https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d - Patch
References () https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54 - () https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54 - Patch
References () https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 - () https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 - Patch
CWE CWE-416
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:5.15:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.15:rc1:*:*:*:*:*:*

21 Nov 2024, 05:30

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/nouveau: evita un use after free cuando falla BO init nouveau_bo_init() está respaldado por ttm_bo_init() y envía su código de retorno de regreso a la persona que llama. En caso de falla, ttm_bo_init() invoca el destructor proporcionado que debería desinicializar y liberar la memoria. Por lo tanto, cuando nouveau_bo_init() devuelve un error, el objeto gema ya ha sido liberado y la memoria ha sido liberada por nouveau_bo_del_ttm().
References () https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d - () https://git.kernel.org/stable/c/548f2ff8ea5e0ce767ae3418d1ec5308990be87d -
References () https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54 - () https://git.kernel.org/stable/c/bcf34aa5082ee2343574bc3f4d1c126030913e54 -
References () https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 - () https://git.kernel.org/stable/c/f86e19d918a85492ad1a01fcdc0ad5ecbdac6f96 -

21 May 2024, 15:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-05-21 15:15

Updated : 2024-12-11 16:37

NVD link : CVE-2020-36788

Mitre link : CVE-2020-36788

CVE.ORG link : CVE-2020-36788

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

Use After Free