CVE-2021-3348

CVE Details

Release Date:	2021-02-01
Impact:	None	What is this?

Description

nbd_add_socket in drivers/block/nbd.c in the Linux kernel through 5.10.12 has an ndb_queue_rq use-after-free that could be triggered by local attackers (with access to the nbd device) via an I/O request at a certain point during device setup, aka CID-b98e762e3d71.

See more information about CVE-2021-3348 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	7.0
Vector String:	CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Local
Attack Complexity:	High
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2021-9084	2021-03-12
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9086	2021-03-09
Oracle Linux version 7 (kernel-uek-container)	ELSA-2021-9087	2021-03-09
Oracle Linux version 8 (kernel)	ELSA-2021-4356	2021-11-16
Oracle Linux version 8 (kernel-uek)	ELSA-2021-9085	2021-03-11
Oracle Linux version 8 (kernel-uek-container)	ELSA-2021-9086	2021-03-09