CVE-2020-29374low
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
An issue was discovered in the Linux kernel before 5.7.3, related to mm/gup.c and mm/huge_memory.c. The get_user_pages (aka gup) implementation, when used for a copy-on-write page, does not properly consider the semantics of read operations and therefore can grant unintended write access, aka CID-17839856fd58.
References
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.7.3
https://bugs.chromium.org/p/project-zero/issues/detail?id=2045
https://security.netapp.com/advisory/ntap-20210115-0002/
http://packetstormsecurity.com/files/162117/Kernel-Live-Patch-Security-Notice-LSN-0075-1.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00019.html
https://lists.debian.org/debian-lts-announce/2021/06/msg00020.html
Details
Source: MITRE
Published: 2020-11-28
Updated: 2021-07-13
Type: CWE-362
Risk Information
CVSS v2
Base Score: 3.3
Vector: AV:L/AC:M/Au:N/C:P/I:P/A:N
Impact Score: 4.9
Exploitability Score: 3.4
Severity: LOW
CVSS v3
Base Score: 3.6
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Impact Score: 2.5
Exploitability Score: 1
Severity: LOW
Vulnerable Software
Configuration 1
OR
Configuration 2
OR
Configuration 3
AND
OR
cpe:2.3:o:netapp:baseboard_management_controller_500f_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:netapp:baseboard_management_controller_500f:-:*:*:*:*:*:*:*
Configuration 4
AND
OR
cpe:2.3:o:netapp:baseboard_management_controller_a250_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:netapp:baseboard_management_controller_a250:-:*:*:*:*:*:*:*
Configuration 5
AND
OR
cpe:2.3:o:netapp:baseboard_management_controller_h410c_firmware:-:*:*:*:*:*:*:*
OR
cpe:2.3:h:netapp:baseboard_management_controller_h410c:-:*:*:*:*:*:*:*
Configuration 6
OR
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
cpe:2.3:a:netapp:solidfire_\&_hci_storage_node:-:*:*:*:*:*:*:*
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 150985 | Debian DLA-2689-1 : linux security update | Nessus | Debian Local Security Checks | high |
| 150984 | Debian DLA-2690-1 : linux-4.19 security update | Nessus | Debian Local Security Checks | high |
| 149872 | Amazon Linux AMI : kernel (ALAS-2021-1503) | Nessus | Amazon Linux Local Security Checks | high |
| 149870 | Amazon Linux 2 : kernel (ALAS-2021-1636) | Nessus | Amazon Linux Local Security Checks | high |
| 148700 | SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1210-1) | Nessus | SuSE Local Security Checks | high |
| 148509 | SUSE SLES12 Security Update : kernel (SUSE-SU-2021:1175-1) | Nessus | SuSE Local Security Checks | medium |
| 147983 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4749-1) | Nessus | Ubuntu Local Security Checks | high |
| 147975 | Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4748-1) | Nessus | Ubuntu Local Security Checks | high |
| 147591 | SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0735-1) | Nessus | SuSE Local Security Checks | high |
| 147586 | SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0740-1) | Nessus | SuSE Local Security Checks | high |
| 147579 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:0741-1) | Nessus | SuSE Local Security Checks | high |
| 147568 | SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0736-1) | Nessus | SuSE Local Security Checks | high |
| 147563 | openSUSE Security Update : the Linux Kernel (openSUSE-2021-393) | Nessus | SuSE Local Security Checks | high |
| 147464 | SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0737-1) | Nessus | SuSE Local Security Checks | high |
| 144731 | EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1039) | Nessus | Huawei Local Security Checks | high |