CVE-2020-25668high
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
A flaw was found in Linux Kernel because access to the global variable fg_console is not properly synchronized leading to a use after free in con_font_op.
References
https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html
https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html
https://www.openwall.com/lists/oss-security/2020/10/30/1,
http://www.openwall.com/lists/oss-security/2020/11/04/3
https://bugzilla.redhat.com/show_bug.cgi?id=1893287,
Details
Source: MITRE
Published: 2021-05-26
Updated: 2021-07-02
Type: CWE-362
Risk Information
CVSS v2
Base Score: 6.9
Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C
Impact Score: 10
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
Configuration 2
OR
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 150536 | SUSE SLES11 Security Update : kernel (SUSE-SU-2021:14630-1) | Nessus | SuSE Local Security Checks | high |
| 147978 | Ubuntu 20.04 LTS / 20.10 : Linux kernel vulnerabilities (USN-4751-1) | Nessus | Ubuntu Local Security Checks | high |
| 147690 | EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2021-1642) | Nessus | Huawei 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 |
| 147512 | EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1604) | Nessus | Huawei Local Security Checks | high |
| 146476 | SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0437-1) | Nessus | SuSE Local Security Checks | high |
| 146282 | openSUSE Security Update : RT kernel (openSUSE-2021-242) | Nessus | SuSE Local Security Checks | high |
| 145005 | Amazon Linux AMI : kernel (ALAS-2021-1461) | Nessus | Amazon Linux Local Security Checks | medium |
| 144837 | OracleVM 3.4 : Unbreakable / etc (OVMSA-2021-0001) | Nessus | OracleVM Local Security Checks | high |
| 144802 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9002) | Nessus | Oracle Linux Local Security Checks | high |
| 144752 | Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4681-1) | Nessus | Ubuntu Local Security Checks | high |
| 144750 | Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4679-1) | Nessus | Ubuntu Local Security Checks | medium |
| 144749 | Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4680-1) | Nessus | Ubuntu Local Security Checks | medium |
| 144693 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1028) | Nessus | Huawei Local Security Checks | high |
| 144687 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1009) | Nessus | Huawei Local Security Checks | high |
| 144494 | Debian DLA-2494-1 : linux security update | Nessus | Debian Local Security Checks | high |
| 144464 | Amazon Linux AMI : kernel (ALAS-2020-1462) (deprecated) | Nessus | Amazon Linux Local Security Checks | high |
| 144313 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-2260) | Nessus | SuSE Local Security Checks | medium |
| 144210 | Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2020-5996) | Nessus | Oracle Linux Local Security Checks | high |
| 144207 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5995) | Nessus | Oracle Linux Local Security Checks | high |
| 144168 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-2514) | Nessus | Huawei Local Security Checks | medium |
| 144101 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:3748-1) | Nessus | SuSE Local Security Checks | medium |
| 144097 | Debian DLA-2483-1 : linux-4.19 security update | Nessus | Debian Local Security Checks | high |
| 143875 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3532-1) | Nessus | SuSE Local Security Checks | high |
| 143860 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3717-1) | Nessus | SuSE Local Security Checks | medium |
| 143857 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3544-1) | Nessus | SuSE Local Security Checks | high |
| 143856 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:3507-1) | Nessus | SuSE Local Security Checks | high |
| 143802 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3513-1) | Nessus | SuSE Local Security Checks | high |
| 143780 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3522-1) | Nessus | SuSE Local Security Checks | high |
| 143755 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3651-1) | Nessus | SuSE Local Security Checks | high |
| 143692 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3648-1) | Nessus | SuSE Local Security Checks | high |
| 143639 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3503-1) | Nessus | SuSE Local Security Checks | high |
| 143619 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3715-1) | Nessus | SuSE Local Security Checks | medium |
| 143589 | Amazon Linux 2 : kernel (ALAS-2020-1566) | Nessus | Amazon Linux Local Security Checks | medium |
| 143398 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-2112) | Nessus | SuSE Local Security Checks | high |
| 143248 | Photon OS 3.0: Linux PHSA-2020-3.0-0163 | Nessus | PhotonOS Local Security Checks | high |
| 143065 | Photon OS 1.0: Linux PHSA-2020-1.0-0338 | Nessus | PhotonOS Local Security Checks | high |
| 142991 | Photon OS 2.0: Linux PHSA-2020-2.0-0296 | Nessus | PhotonOS Local Security Checks | high |
| 142945 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1906) | Nessus | SuSE Local Security Checks | high |
| 142921 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1901) | Nessus | SuSE Local Security Checks | high |