CVE-2020-25704MEDIUM
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 memory leak in the Linux kernel performance monitoring subsystem was found in the way if using PERF_EVENT_IOC_SET_FILTER. A local user could use this flaw to starve the resources causing denial of service.
References
https://bugzilla.redhat.com/show_bug.cgi?id=1895961
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: 2020-12-02
Updated: 2020-12-18
Type: CWE-400
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 5.9 (inclusive)
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 149914 | Oracle Linux 8 : kernel (ELSA-2021-1578) | Nessus | Oracle Linux Local Security Checks | high |
| 149874 | CentOS 8 : kernel (CESA-2021:1578) | Nessus | CentOS Local Security Checks | high |
| 149670 | RHEL 8 : kernel (RHSA-2021:1578) | Nessus | Red Hat Local Security Checks | high |
| 149660 | RHEL 8 : kernel-rt (RHSA-2021:1739) | Nessus | Red Hat Local Security Checks | high |
| 148041 | EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1684) | Nessus | Huawei Local Security Checks | high |
| 147982 | Ubuntu 20.04 LTS : Linux kernel (OEM) vulnerabilities (USN-4752-1) | Nessus | Ubuntu 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 |
| 147512 | EulerOS Virtualization 2.9.1 : kernel (EulerOS-SA-2021-1604) | Nessus | Huawei Local Security Checks | high |
| 146282 | openSUSE Security Update : RT kernel (openSUSE-2021-242) | Nessus | SuSE Local Security Checks | high |
| 145518 | Ubuntu 18.04 LTS : Linux kernel vulnerability (USN-4710-1) | Nessus | Ubuntu Local Security Checks | medium |
| 145511 | Ubuntu 18.04 LTS : Linux kernel vulnerabilities (USN-4711-1) | Nessus | Ubuntu Local Security Checks | high |
| 145005 | Amazon Linux AMI : kernel (ALAS-2021-1461) | Nessus | Amazon Linux Local Security Checks | medium |
| 144750 | Ubuntu 18.04 LTS / 20.04 LTS : Linux kernel vulnerabilities (USN-4679-1) | Nessus | Ubuntu Local Security Checks | medium |
| 144731 | EulerOS Virtualization for ARM 64 3.0.2.0 : kernel (EulerOS-SA-2021-1039) | 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 |
| 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 |
| 143411 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2020-2498) | Nessus | Huawei Local Security Checks | medium |
| 143408 | EulerOS 2.0 SP9 : kernel (EulerOS-SA-2020-2485) | Nessus | Huawei Local Security Checks | medium |
| 143398 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-2112) | Nessus | SuSE Local Security Checks | high |
| 143314 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-2034) | Nessus | SuSE Local Security Checks | high |
| 143248 | Photon OS 3.0: Linux PHSA-2020-3.0-0163 | Nessus | PhotonOS Local Security Checks | high |
| 142986 | Photon OS 2.0: Linux PHSA-2020-2.0-0295 | Nessus | PhotonOS Local Security Checks | high |
| 142945 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-1906) | Nessus | SuSE Local Security Checks | high |