CVE-2019-20934

MEDIUM

Description

An issue was discovered in the Linux kernel before 5.2.6. On NUMA systems, the Linux fair scheduler has a use-after-free in show_numa_stats() because NUMA fault statistics are inappropriately freed, aka CID-16d51a590a8c.

References

https://bugs.chromium.org/p/project-zero/issues/detail?id=1913

https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.2.6

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=16d51a590a8ce3befb1308e0e7ab77f3b661af33

Details

Source: MITRE

Published: 2020-11-28

Updated: 2021-01-12

Type: CWE-416

Risk Information

CVSS v2.0

Base Score: 5.4

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

Impact Score: 7.8

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3.0

Base Score: 5.3

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

Impact Score: 4.2

Exploitability Score: 1

Severity: MEDIUM

Tenable Plugins

View all (16 total)

IDNameProductFamilySeverity
148041EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1684)NessusHuawei Local Security Checks
high
146701EulerOS 2.0 SP2 : kernel (EulerOS-SA-2021-1311)NessusHuawei Local Security Checks
high
146511SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0452-1)NessusSuSE Local Security Checks
high
146476SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0437-1)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
145287openSUSE Security Update : the Linux Kernel (openSUSE-2021-75)NessusSuSE Local Security Checks
high
145201EulerOS 2.0 SP3 : kernel (EulerOS-SA-2021-1079)NessusHuawei Local Security Checks
high
145120SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0133-1)NessusSuSE Local Security Checks
high
145018SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2021:0118-1)NessusSuSE Local Security Checks
high
144914SUSE SLES12 Security Update : kernel (SUSE-SU-2021:0098-1)NessusSuSE 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
144259SUSE SLES15 Security Update : kernel (SUSE-SU-2020:3798-1)NessusSuSE Local Security Checks
high
144168EulerOS 2.0 SP8 : kernel (EulerOS-SA-2020-2514)NessusHuawei Local Security Checks
high