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UBUNTU-CVE-2020-15437 Moderate

UBUNTU-CVE-2020-15437

The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized.

Exploit probability Not scored
Published November 23, 2020
Required by Not available
Last source change August 18, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:16.04:LTS linux-snapdragon

83 explicit affected versions

Ubuntu:18.04:LTS linux-oem

42 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.0

6 explicit affected versions

Ubuntu:20.04:LTS linux-raspi2

6 explicit affected versions

Ubuntu:Pro:20.04:LTS linux-azure-fde-5.15

57 explicit affected versions

Ubuntu:Pro:14.04:LTS linux

191 explicit affected versions

Ubuntu:18.04:LTS linux-aws

47 explicit affected versions

Ubuntu:20.04:LTS linux-kvm

12 explicit affected versions

Ubuntu:18.04:LTS linux-oracle

28 explicit affected versions

Ubuntu:Pro:FIPS-updates:18.04:LTS linux-azure-fips

2 explicit affected versions

Ubuntu:18.04:LTS linux

54 explicit affected versions

Ubuntu:16.04:LTS linux-hwe-edge

23 explicit affected versions

Ubuntu:Pro:FIPS:18.04:LTS linux-gcp-fips

1 explicit affected versions

Ubuntu:24.04:LTS linux-raspi-realtime

1 explicit affected versions

Ubuntu:Pro:FIPS-updates:20.04:LTS linux-aws-fips

1 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.0

7 explicit affected versions

Ubuntu:20.04:LTS linux-riscv

5 explicit affected versions

Ubuntu:22.04:LTS linux-intel-iot-realtime

1 explicit affected versions

Ubuntu:20.04:LTS linux-gcp

12 explicit affected versions

Ubuntu:20.04:LTS linux

16 explicit affected versions

Ubuntu:16.04:LTS linux-kvm

51 explicit affected versions

Ubuntu:20.04:LTS linux-azure

12 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-4.15

4 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-edge

10 explicit affected versions

Ubuntu:16.04:LTS linux-oracle

27 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-aws

50 explicit affected versions

Ubuntu:18.04:LTS linux-snapdragon

26 explicit affected versions

Ubuntu:Pro:FIPS:20.04:LTS linux-aws-fips

1 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.6

22 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.3

13 explicit affected versions

Ubuntu:18.04:LTS linux-kvm

44 explicit affected versions

Ubuntu:Pro:FIPS:18.04:LTS linux-azure-fips

1 explicit affected versions

Ubuntu:20.04:LTS linux-aws

14 explicit affected versions

Ubuntu:18.04:LTS linux-gke-4.15

23 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.3

10 explicit affected versions

Ubuntu:Nvidia-BlueField:24.04:LTS linux-bluefield

11 explicit affected versions

Ubuntu:16.04:LTS linux-raspi2

85 explicit affected versions

Ubuntu:20.04:LTS linux-oracle

12 explicit affected versions

Ubuntu:Pro:FIPS:16.04:LTS linux-fips

2 explicit affected versions

Ubuntu:18.04:LTS linux-raspi2

47 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-5.4

4 explicit affected versions

Ubuntu:16.04:LTS linux-gcp

51 explicit affected versions

Ubuntu:Pro:FIPS:20.04:LTS linux-azure-fips

1 explicit affected versions

Ubuntu:16.04:LTS linux

114 explicit affected versions

Ubuntu:18.04:LTS linux-azure-4.15

5 explicit affected versions

Ubuntu:16.04:LTS linux-azure

60 explicit affected versions

Ubuntu:Pro:FIPS:18.04:LTS linux-aws-fips

1 explicit affected versions

Ubuntu:Pro:FIPS-updates:18.04:LTS linux-fips

6 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.4

2 explicit affected versions

Ubuntu:Pro:FIPS:20.04:LTS linux-gcp-fips

1 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.4

2 explicit affected versions

Ubuntu:Pro:FIPS-updates:20.04:LTS linux-azure-fips

1 explicit affected versions

Ubuntu:Pro:FIPS-updates:18.04:LTS linux-aws-fips

5 explicit affected versions

Ubuntu:16.04:LTS linux-aws

72 explicit affected versions

Ubuntu:18.04:LTS linux-raspi-5.4

2 explicit affected versions

Ubuntu:16.04:LTS linux-aws-hwe

29 explicit affected versions

Ubuntu:18.04:LTS linux-azure

44 explicit affected versions

Ubuntu:18.04:LTS linux-azure-5.3

16 explicit affected versions

Ubuntu:18.04:LTS linux-gcp

38 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.3

9 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-lts-xenial

92 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.4

2 explicit affected versions

Ubuntu:16.04:LTS linux-hwe

73 explicit affected versions

Ubuntu:Pro:FIPS:16.04:LTS linux-fips

27 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-azure

37 explicit affected versions

Ubuntu:18.04:LTS linux-azure-5.4

2 explicit affected versions

Ubuntu:18.04:LTS linux-hwe

43 explicit affected versions

Ubuntu:Pro:FIPS-updates:20.04:LTS linux-gcp-fips

1 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-edge

12 explicit affected versions

Ubuntu:20.04:LTS linux-raspi

6 explicit affected versions

Ubuntu:18.04:LTS linux-azure-edge

4 explicit affected versions

Ubuntu:22.04:LTS linux-realtime

1 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-CVE-2020-15437

The Linux kernel before version 5.8 is vulnerable to a NULL pointer dereference in drivers/tty/serial/8250/8250_core.c:serial8250_isa_init_ports() that allows local users to cause a denial of service by using the p->serial_in pointer which uninitialized.

View original source

05 / REFERENCES

Further evidence