CVE-2021-47086

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-47086
In the Linux kernel, the following vulnerability has been resolved: phonet/pep: refuse to enable an unbound pipe This ioctl() implicitly assumed that the socket was already bound to a valid local socket name, i.e. Phonet object. If the socket was not bound, two separate problems would occur: 1) We'd send an pipe enablement request with an invalid source object. 2) Later socket calls could BUG on the socket unexpectedly being connected yet not bound to a valid object.

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/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 Patch
https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161 Patch
https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b Patch
https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52 Patch
https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa Patch
https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068 Patch
https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235 Patch
https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca Patch
https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 Patch
https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161 Patch
https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b Patch
https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52 Patch
https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa Patch
https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068 Patch
https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235 Patch
https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca 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:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc6:*:*:*:*:*:*
History

16 Jan 2025, 17:13

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 5.5
CPE cpe:2.3:o:linux:linux_kernel:5.16:rc3:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc6:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc5:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc4:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.16:rc1:*:*:*:*:*:*
References () https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 - () https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 - Patch
References () https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161 - () https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161 - Patch
References () https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b - () https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b - Patch
References () https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52 - () https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52 - Patch
References () https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa - () https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa - Patch
References () https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068 - () https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068 - Patch
References () https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235 - () https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235 - Patch
References () https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca - () https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca - Patch
CWE NVD-CWE-noinfo
First Time Linux
Linux linux Kernel

21 Nov 2024, 06:35

Type Values Removed Values Added
References () https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 - () https://git.kernel.org/stable/c/0bbdd62ce9d44f3a22059b3d20a0df977d9f6d59 -
References () https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161 - () https://git.kernel.org/stable/c/311601f114859d586d5ef8833d60d3aa23282161 -
References () https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b - () https://git.kernel.org/stable/c/48c76fc53582e7f13c1e0b11c916e503256c4d0b -
References () https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52 - () https://git.kernel.org/stable/c/52ad5da8e316fa11e3a50b3f089aa63e4089bf52 -
References () https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa - () https://git.kernel.org/stable/c/53ccdc73eedaf0e922c45b569b797d2796fbaafa -
References () https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068 - () https://git.kernel.org/stable/c/75a2f31520095600f650597c0ac41f48b5ba0068 -
References () https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235 - () https://git.kernel.org/stable/c/982b6ba1ce626ef87e5c29f26f2401897554f235 -
References () https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca - () https://git.kernel.org/stable/c/b10c7d745615a092a50c2e03ce70446d2bec2aca -

05 Mar 2024, 13:41

Type Values Removed Values Added
Summary
  • (es) En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: phonet/pep: se niega a habilitar una tubería independiente. Este ioctl() supone implícitamente que el socket ya estaba vinculado a un nombre de socket local válido, es decir, objeto Phonet. Si el socket no estuviera vinculado, se producirían dos problemas distintos: 1) Enviamos una solicitud de habilitación de canalización con un objeto fuente no válido. 2) Las llamadas de socket posteriores podrían ERROR en el socket que se conecta inesperadamente pero no está vinculado a un objeto válido.

04 Mar 2024, 18:15

Type Values Removed Values Added
New CVE
Information

Published : 2024-03-04 18:15

Updated : 2025-01-16 17:13

NVD link : CVE-2021-47086

Mitre link : CVE-2021-47086

CVE.ORG link : CVE-2021-47086

JSON object : View

Products Affected

linux

  • linux_kernel
CWE
NVD-CWE-noinfo