CVE-2021-3348high
New! CVE Severity Now Using CVSS v3
The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.
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.
References
http://www.openwall.com/lists/oss-security/2021/02/01/1
https://lists.debian.org/debian-lts-announce/2021/03/msg00035.html
Details
Source: MITRE
Published: 2021-02-01
Updated: 2021-03-31
Type: CWE-362
Risk Information
CVSS v2
Base Score: 4.4
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P
Impact Score: 6.4
Exploitability Score: 3.4
Severity: MEDIUM
CVSS v3
Base Score: 7
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Impact Score: 5.9
Exploitability Score: 1
Severity: HIGH
Vulnerable Software
Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 5.10.12 (inclusive)
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 151167 | EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2021-2002) | Nessus | Huawei Local Security Checks | high |
| 150214 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1929) | Nessus | Huawei Local Security Checks | high |
| 150213 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1950) | Nessus | Huawei Local Security Checks | high |
| 149607 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2021-1879) | Nessus | Huawei Local Security Checks | high |
| 148634 | EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1715) | Nessus | Huawei Local Security Checks | high |
| 148604 | EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2021-1751) | Nessus | Huawei Local Security Checks | high |
| 148497 | Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4909-1) | Nessus | Ubuntu Local Security Checks | high |
| 148493 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4907-1) | Nessus | Ubuntu Local Security Checks | high |
| 148492 | Ubuntu 20.04 LTS / 20.10 : Linux kernel vulnerabilities (USN-4910-1) | Nessus | Ubuntu Local Security Checks | high |
| 148350 | Photon OS 4.0: Linux PHSA-2021-4.0-0007 | Nessus | PhotonOS Local Security Checks | high |
| 148254 | Debian DLA-2610-1 : linux-4.19 security update | Nessus | Debian Local Security Checks | high |
| 147973 | Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4884-1) | Nessus | Ubuntu Local Security Checks | high |
| 147588 | EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1386) | Nessus | Huawei Local Security Checks | high |
| 147454 | SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0739-1) | Nessus | SuSE Local Security Checks | high |
| 147452 | SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0742-1) | Nessus | SuSE Local Security Checks | high |
| 147205 | Oracle Linux 7 : Unbreakable Enterprise kernel-container (ELSA-2021-9087) | Nessus | Oracle Linux Local Security Checks | high |
| 147204 | Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9085) | Nessus | Oracle Linux Local Security Checks | high |
| 147203 | Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9086) | Nessus | Oracle Linux Local Security Checks | high |
| 147202 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2021-9084) | Nessus | Oracle Linux Local Security Checks | high |
| 146685 | SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0532-1) | Nessus | SuSE Local Security Checks | high |
| 146631 | Amazon Linux 2 : kernel (ALAS-2021-1600) | Nessus | Amazon Linux Local Security Checks | high |
| 146569 | Amazon Linux AMI : kernel (ALAS-2021-1480) | Nessus | Amazon Linux Local Security Checks | high |
| 146474 | SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0438-1) | Nessus | SuSE Local Security Checks | high |
| 146470 | SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0434-1) | Nessus | SuSE Local Security Checks | high |
| 146406 | SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0427-1) | Nessus | SuSE Local Security Checks | high |
| 146366 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:0354-1) | Nessus | SuSE Local Security Checks | high |
| 146293 | openSUSE Security Update : the Linux Kernel (openSUSE-2021-241) | Nessus | SuSE Local Security Checks | high |