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UBUNTU-CVE-2020-27820 Moderate

UBUNTU-CVE-2020-27820

A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).

Exploit probability Not scored
Published November 3, 2021
Required by Not available
Last source change August 19, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:18.04:LTS linux-oem

50 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.0

6 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.11

11 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:FIPS-updates:20.04:LTS linux-fips

18 explicit affected versions

Ubuntu:Pro:14.04:LTS linux

191 explicit affected versions

Ubuntu:20.04:LTS linux-kvm

44 explicit affected versions

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

85 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.14

9 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-oracle

118 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.13

2 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.8

4 explicit affected versions

Ubuntu:16.04:LTS linux-hwe-edge

23 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-kvm

73 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:20.04:LTS linux-hwe-5.8

21 explicit affected versions

Ubuntu:20.04:LTS linux-hwe-5.13

5 explicit affected versions

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

4 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.0

7 explicit affected versions

Ubuntu:20.04:LTS linux-riscv

12 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-oracle

111 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.11

11 explicit affected versions

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

1 explicit affected versions

Ubuntu:20.04:LTS linux-intel-5.13

7 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.13

11 explicit affected versions

Ubuntu:20.04:LTS linux-gcp

48 explicit affected versions

Ubuntu:18.04:LTS linux-ibm-5.4

8 explicit affected versions

Ubuntu:20.04:LTS linux

56 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.11

11 explicit affected versions

Ubuntu:20.04:LTS linux-azure

47 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-edge

10 explicit affected versions

Ubuntu:Pro:16.04:LTS linux

139 explicit affected versions

Ubuntu:18.04:LTS linux-gke-5.4

31 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-aws

72 explicit affected versions

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

1 explicit affected versions

Ubuntu:20.04:LTS linux-iot

1 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.10

23 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.13

2 explicit affected versions

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

1 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.6

29 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.3

13 explicit affected versions

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

1 explicit affected versions

Ubuntu:20.04:LTS linux-aws

49 explicit affected versions

Ubuntu:18.04:LTS linux-gke-4.15

33 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:20.04:LTS linux-hwe-5.11

12 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.8

7 explicit affected versions

Ubuntu:20.04:LTS linux-oracle

47 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-gcp

138 explicit affected versions

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

2 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-kvm

132 explicit affected versions

Ubuntu:Pro:18.04:LTS linux

154 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-5.4

44 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-aws

139 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-aws-hwe

116 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-gcp-4.15

93 explicit affected versions

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

1 explicit affected versions

Ubuntu:20.04:LTS linux-ibm

15 explicit affected versions

Ubuntu:20.04:LTS linux-gke

26 explicit affected versions

Ubuntu:Pro:18.04:LTS linux-azure-4.15

92 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.13

2 explicit affected versions

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

1 explicit affected versions

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

1 explicit affected versions

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

98 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.8

5 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-5.4

38 explicit affected versions

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

1 explicit affected versions

Ubuntu:18.04:LTS linux-aws-5.4

37 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.11

12 explicit affected versions

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

4 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-azure

140 explicit affected versions

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

94 explicit affected versions

Ubuntu:20.04:LTS linux-riscv-5.8

10 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.13

2 explicit affected versions

Ubuntu:18.04:LTS linux-raspi-5.4

34 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:20.04:LTS linux-riscv-5.11

13 explicit affected versions

Ubuntu:18.04:LTS linux-gkeop-5.4

31 explicit affected versions

Ubuntu:18.04:LTS linux-gcp

38 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-hwe

167 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.3

9 explicit affected versions

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

116 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.4

37 explicit affected versions

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

51 explicit affected versions

Ubuntu:20.04:LTS linux-bluefield

17 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-azure

121 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.8

4 explicit affected versions

Ubuntu:18.04:LTS linux-azure-5.4

37 explicit affected versions

Ubuntu:18.04:LTS linux-hwe

43 explicit affected versions

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

4 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-aws

94 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-edge

12 explicit affected versions

Ubuntu:20.04:LTS linux-raspi

38 explicit affected versions

Ubuntu:18.04:LTS linux-azure-edge

4 explicit affected versions

Ubuntu:20.04:LTS linux-gkeop

26 explicit affected versions

Ubuntu:22.04:LTS linux-realtime

1 explicit affected versions

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

69 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-CVE-2020-27820

A vulnerability was found in Linux kernel, where a use-after-frees in nouveau's postclose() handler could happen if removing device (that is not common to remove video card physically without power-off, but same happens if "unbind" the driver).

View original source

05 / REFERENCES

Further evidence