CVE-2019-20812medium
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 5.4.7. The prb_calc_retire_blk_tmo() function in net/packet/af_packet.c can result in a denial of service (CPU consumption and soft lockup) in a certain failure case involving TPACKET_V3, aka CID-b43d1f9f7067.
References
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.7
http://lists.opensuse.org/opensuse-security-announce/2020-06/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00008.html
Details
Source: MITRE
Published: 2020-06-03
Updated: 2021-06-14
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
Tenable Plugins
| ID | Name | Product | Family | Severity |
|---|---|---|---|---|
| 146282 | openSUSE Security Update : RT kernel (openSUSE-2021-242) | Nessus | SuSE Local Security Checks | high |
| 142240 | EulerOS 2.0 SP2 : kernel (EulerOS-SA-2020-2353) | Nessus | Huawei Local Security Checks | high |
| 141697 | EulerOS Virtualization 3.0.2.2 : kernel (EulerOS-SA-2020-2222) | Nessus | Huawei Local Security Checks | high |
| 141374 | OracleVM 3.4 : Unbreakable / etc (OVMSA-2020-0044) | Nessus | OracleVM Local Security Checks | critical |
| 141207 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5866) | Nessus | Oracle Linux Local Security Checks | critical |
| 140917 | EulerOS 2.0 SP3 : kernel (EulerOS-SA-2020-2150) | Nessus | Huawei Local Security Checks | medium |
| 140499 | Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5845) | Nessus | Oracle Linux Local Security Checks | critical |
| 140496 | Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2020-5841) | Nessus | Oracle Linux Local Security Checks | medium |
| 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 |
| 139995 | EulerOS Virtualization for ARM 64 3.0.6.0 : kernel (EulerOS-SA-2020-1892) | Nessus | Huawei Local Security Checks | high |
| 139408 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2152-1) | Nessus | SuSE Local Security Checks | high |
| 139364 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:2134-1) | Nessus | SuSE Local Security Checks | high |
| 139308 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:2105-1) | Nessus | SuSE Local Security Checks | medium |
| 139137 | EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-1807) | Nessus | Huawei Local Security Checks | high |
| 138727 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-935) | Nessus | SuSE Local Security Checks | high |
| 138679 | openSUSE Security Update : the Linux Kernel (openSUSE-2020-801) | Nessus | SuSE Local Security Checks | medium |
| 138272 | SUSE SLES15 Security Update : kernel (SUSE-SU-2020:1663-1) | Nessus | SuSE Local Security Checks | critical |
| 137617 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1605-1) | Nessus | SuSE Local Security Checks | medium |
| 137616 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1603-1) | Nessus | SuSE Local Security Checks | medium |
| 137615 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1602-1) | Nessus | SuSE Local Security Checks | medium |
| 137613 | SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1599-1) | Nessus | SuSE Local Security Checks | medium |
| 137608 | SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1587-1) | Nessus | SuSE Local Security Checks | medium |