CVE-2020-27835

medium
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 use after free in the Linux kernel infiniband hfi1 driver in versions prior to 5.10-rc6 was found in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system.

References

https://bugzilla.redhat.com/show_bug.cgi?id=1901709

Details

Source: MITRE

Published: 2021-01-07

Updated: 2021-01-14

Type: CWE-416

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: 4.4

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

Impact Score: 3.6

Exploitability Score: 0.8

Severity: MEDIUM

Tenable Plugins

View all (14 total)

IDNameProductFamilySeverity
149914Oracle Linux 8 : kernel (ELSA-2021-1578)NessusOracle Linux Local Security Checks
high
149874CentOS 8 : kernel (CESA-2021:1578)NessusCentOS Local Security Checks
high
149670RHEL 8 : kernel (RHSA-2021:1578)NessusRed Hat Local Security Checks
high
149660RHEL 8 : kernel-rt (RHSA-2021:1739)NessusRed Hat Local Security Checks
high
147978Ubuntu 20.04 LTS / 20.10 : Linux kernel vulnerabilities (USN-4751-1)NessusUbuntu Local Security Checks
high
146685SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0532-1)NessusSuSE Local Security Checks
high
146511SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0452-1)NessusSuSE Local Security Checks
high
146474SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0438-1)NessusSuSE Local Security Checks
high
146470SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0434-1)NessusSuSE Local Security Checks
high
146406SUSE SLES15 Security Update : kernel (SUSE-SU-2021:0427-1)NessusSuSE Local Security Checks
high
146366SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:0354-1)NessusSuSE Local Security Checks
high
146362SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0348-1)NessusSuSE Local Security Checks
high
146359SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0353-1)NessusSuSE Local Security Checks
high
145320openSUSE Security Update : the Linux Kernel (openSUSE-2021-60)NessusSuSE Local Security Checks
medium