CVE-2020-14351

HIGH
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 the Linux kernel. A use-after-free memory flaw was found in the perf subsystem allowing a local attacker with permission to monitor perf events to corrupt memory and possibly escalate privileges. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1862849

https://lists.debian.org/debian-lts-announce/2020/12/msg00015.html

https://lists.debian.org/debian-lts-announce/2020/12/msg00027.html

Details

Source: MITRE

Published: 2020-12-03

Updated: 2020-12-18

Type: CWE-416

Risk Information

CVSS v2

Base Score: 4.6

Vector: AV:L/AC:L/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.9

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Tenable Plugins

View all (52 total)

IDNameProductFamilySeverity
148886RHEL 7 : kernel (RHSA-2021:1028)NessusRed Hat Local Security Checks
high
148851RHEL 7 : kernel (RHSA-2021:1267)NessusRed Hat Local Security Checks
high
148604EulerOS Virtualization 2.9.0 : kernel (EulerOS-SA-2021-1751)NessusHuawei Local Security Checks
high
148494Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4912-1)NessusUbuntu Local Security Checks
high
147885CentOS 7 : kernel (CESA-2021:0856)NessusCentOS Local Security Checks
high
147861Oracle Linux 7 : kernel (ELSA-2021-0856)NessusOracle Linux Local Security Checks
high
147842RHEL 7 : kernel (RHSA-2021:0878)NessusRed Hat Local Security Checks
high
147835RHEL 7 : kernel (RHSA-2021:0856)NessusRed Hat Local Security Checks
high
147828RHEL 7 : kernel (RHSA-2021:0848)NessusRed Hat Local Security Checks
high
147827RHEL 7 : kernel-rt (RHSA-2021:0857)NessusRed Hat Local Security Checks
high
147559EulerOS Virtualization 3.0.6.6 : kernel (EulerOS-SA-2021-1454)NessusHuawei Local Security Checks
high
147512EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1604)NessusHuawei Local Security Checks
high
147212RHEL 8 : kernel-rt (RHSA-2021:0774)NessusRed Hat Local Security Checks
high
147207RHEL 8 : kernel (RHSA-2021:0765)NessusRed Hat Local Security Checks
high
147011RHEL 8 : kernel (RHSA-2021:0686)NessusRed Hat Local Security Checks
high
146701EulerOS 2.0 SP2 : kernel (EulerOS-SA-2021-1311)NessusHuawei Local Security Checks
high
146568Oracle Linux 8 : kernel (ELSA-2021-0558)NessusOracle Linux Local Security Checks
high
146551RHEL 8 : kernel-rt (RHSA-2021:0537)NessusRed Hat Local Security Checks
high
146535RHEL 8 : kernel (RHSA-2021:0558)NessusRed Hat Local Security Checks
high
146282openSUSE Security Update : RT kernel (openSUSE-2021-242)NessusSuSE Local Security Checks
high
146261EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1265)NessusHuawei Local Security Checks
medium
146181EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1200)NessusHuawei Local Security Checks
high
145201EulerOS 2.0 SP3 : kernel (EulerOS-SA-2021-1079)NessusHuawei Local Security Checks
high
145005Amazon Linux AMI : kernel (ALAS-2021-1461)NessusAmazon Linux Local Security Checks
medium
144907Oracle Linux 7 / 8 : Unbreakable Enterprise kernel (ELSA-2021-9006)NessusOracle Linux Local Security Checks
high
144906Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9007)NessusOracle Linux Local Security Checks
high
144837OracleVM 3.4 : Unbreakable / etc (OVMSA-2021-0001)NessusOracleVM Local Security Checks
high
144802Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9002)NessusOracle Linux Local Security Checks
high
144731EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1039)NessusHuawei Local Security Checks
high
144693EulerOS 2.0 SP9 : kernel (EulerOS-SA-2021-1028)NessusHuawei Local Security Checks
high
144494Debian DLA-2494-1 : linux security updateNessusDebian Local Security Checks
high
144464Amazon Linux AMI : kernel (ALAS-2020-1462) (deprecated)NessusAmazon Linux Local Security Checks
high
144097Debian DLA-2483-1 : linux-4.19 security updateNessusDebian Local Security Checks
high
143875SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3532-1)NessusSuSE Local Security Checks
high
143858SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3326-1)NessusSuSE Local Security Checks
high
143857SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3544-1)NessusSuSE Local Security Checks
high
143809SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:3272-1)NessusSuSE Local Security Checks
high
143802SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3513-1)NessusSuSE Local Security Checks
high
143780SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3522-1)NessusSuSE Local Security Checks
high
143773SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3281-1)NessusSuSE Local Security Checks
high
143654SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3501-1)NessusSuSE Local Security Checks
high
143639SUSE SLES12 Security Update : kernel (SUSE-SU-2020:3503-1)NessusSuSE Local Security Checks
high
143621SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:3122-1)NessusSuSE Local Security Checks
high
143589Amazon Linux 2 : kernel (ALAS-2020-1566)NessusAmazon Linux Local Security Checks
medium
143445Ubuntu 16.04 LTS / 18.04 LTS : Linux kernel vulnerabilities (USN-4660-1)NessusUbuntu Local Security Checks
high
143433Ubuntu 16.04 LTS : Linux kernel vulnerabilities (USN-4657-1)NessusUbuntu Local Security Checks
high
143431Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4658-1)NessusUbuntu Local Security Checks
high
143429Ubuntu 20.10 : Linux kernel vulnerabilities (USN-4659-1)NessusUbuntu Local Security Checks
high
143398openSUSE Security Update : the Linux Kernel (openSUSE-2020-2112)NessusSuSE Local Security Checks
high
142945openSUSE Security Update : the Linux Kernel (openSUSE-2020-1906)NessusSuSE Local Security Checks
high
142921openSUSE Security Update : the Linux Kernel (openSUSE-2020-1901)NessusSuSE Local Security Checks
high
142148EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-2311)NessusHuawei Local Security Checks
high