CVE-2020-12771MEDIUM
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 through 5.6.11. btree_gc_coalesce in drivers/md/bcache/btree.c has a deadlock if a coalescing operation fails.
References
https://lkml.org/lkml/2020/4/26/87
https://security.netapp.com/advisory/ntap-20200608-0001/
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html
http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html
https://usn.ubuntu.com/4463-1/
https://usn.ubuntu.com/4465-1/
https://usn.ubuntu.com/4483-1/
https://usn.ubuntu.com/4462-1/
https://usn.ubuntu.com/4485-1/
https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
Details
Source: MITRE
Published: 2020-05-09
Updated: 2021-06-14
Type: CWE-20
Risk Information
CVSS v2
Base Score: 4.9
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
Impact Score: 6.9
Exploitability Score: 3.9
Severity: MEDIUM
CVSS v3
Base Score: 5.5
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Impact Score: 3.6
Exploitability Score: 1.8
Severity: MEDIUM
Vulnerable Software
Configuration 1
OR
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions up to 5.6.11 (inclusive)
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 146282 | openSUSE Security Update : RT kernel (openSUSE-2021-242) | Nessus | SuSE Local Security Checks | high |
| 142176 | Debian DLA-2420-2 : linux regression update | Nessus | Debian Local Security Checks | high |
| 141789 | Slackware 14.2 : Slackware 14.2 kernel (SSA:2020-295-01) | Nessus | Slackware Local Security Checks | high |
| 141445 | Photon OS 2.0: Linux PHSA-2020-2.0-0288 | Nessus | PhotonOS Local Security Checks | high |
| 140588 | Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5848) | Nessus | Oracle Linux Local Security Checks | medium |
| 140499 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5845) | Nessus | Oracle Linux Local Security Checks | critical |
| 140378 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:2487-1) | Nessus | SuSE Local Security Checks | medium |
| 140328 | EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2020-1958) | Nessus | Huawei Local Security Checks | high |
| 140183 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4485-1) | Nessus | Ubuntu Local Security Checks | high |
| 140181 | Ubuntu 18.04 LTS / 20.04 : Linux kernel vulnerabilities (USN-4483-1) | Nessus | Ubuntu Local Security Checks | high |
| 139693 | Ubuntu 18.04 LTS : linux kernel vulnerabilities (USN-4465-1) | Nessus | Ubuntu Local Security Checks | high |
| 139662 | Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4463-1) | Nessus | Ubuntu Local Security Checks | medium |
| 139661 | Ubuntu 18.04 LTS : Linux kernel vulnerability (USN-4462-1) | Nessus | Ubuntu Local Security Checks | medium |
| 139551 | Debian DLA-2323-1 : linux-4.19 new package | Nessus | Debian Local Security Checks | critical |
| 139408 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2152-1) | Nessus | SuSE Local Security Checks | high |
| 139401 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1153) | Nessus | SuSE Local Security Checks | critical |
| 139364 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2134-1) | Nessus | SuSE Local Security Checks | high |
| 139363 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2122-1) | Nessus | SuSE Local Security Checks | critical |
| 139362 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2121-1) | Nessus | SuSE Local Security Checks | critical |
| 139361 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2119-1) | Nessus | SuSE Local Security Checks | critical |
| 139310 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2107-1) | Nessus | SuSE Local Security Checks | critical |
| 139309 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:2106-1) | Nessus | SuSE Local Security Checks | critical |
| 139308 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2105-1) | Nessus | SuSE Local Security Checks | medium |
| 138986 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1062) | Nessus | SuSE Local Security Checks | medium |
| 138854 | Amazon Linux 2 : kernel (ALAS-2020-1465) | Nessus | Amazon Linux Local Security Checks | high |
| 138643 | Amazon Linux AMI : kernel (ALAS-2020-1401) | Nessus | Amazon Linux Local Security Checks | high |
| 137805 | EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1698) | Nessus | Huawei Local Security Checks | medium |
| 136870 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1592) | Nessus | Huawei Local Security Checks | high |