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UBUNTU-CVE-2021-26401 Moderate

UBUNTU-CVE-2021-26401

LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.

Exploit probability Not scored
Published March 11, 2022
Required by Not available
Last source change August 18, 2026

02 / AFFECTED SOFTWARE

Affected packages

Ubuntu:20.04:LTS linux-intel-iotg-5.15

1 explicit affected versions

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

12 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:18.04:LTS linux-aws

81 explicit affected versions

Ubuntu:20.04:LTS linux-kvm

44 explicit affected versions

Ubuntu:18.04:LTS linux-oracle

61 explicit affected versions

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

34 explicit affected versions

Ubuntu:20.04:LTS linux-oem-5.14

15 explicit affected versions

Ubuntu:18.04:LTS linux

93 explicit affected versions

Ubuntu:20.04:LTS linux-aws-5.13

8 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

83 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

11 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:20.04:LTS linux-gcp-5.11

12 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

12 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

12 explicit affected versions

Ubuntu:20.04:LTS linux-azure

47 explicit affected versions

Ubuntu:18.04:LTS linux-gcp-4.15

36 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-edge

10 explicit affected versions

Ubuntu:Pro:16.04:LTS linux

149 explicit affected versions

Ubuntu:18.04:LTS linux-gke-5.4

31 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-aws

82 explicit affected versions

Ubuntu:18.04:LTS linux-snapdragon

59 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

26 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.13

8 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:18.04:LTS linux-kvm

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

60 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:Pro:16.04:LTS linux-gcp

83 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:FIPS:16.04:LTS linux-fips

2 explicit affected versions

Ubuntu:18.04:LTS linux-raspi2

79 explicit affected versions

Ubuntu:18.04:LTS linux-hwe-5.4

44 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:18.04:LTS linux-azure-4.15

37 explicit affected versions

Ubuntu:20.04:LTS linux-azure-5.13

7 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

41 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

13 explicit affected versions

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

4 explicit affected versions

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

37 explicit affected versions

Ubuntu:20.04:LTS linux-riscv-5.8

10 explicit affected versions

Ubuntu:20.04:LTS linux-oracle-5.13

7 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:18.04:LTS linux-oracle-5.3

9 explicit affected versions

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

126 explicit affected versions

Ubuntu:18.04:LTS linux-oracle-5.4

37 explicit affected versions

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

61 explicit affected versions

Ubuntu:20.04:LTS linux-bluefield

17 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-azure

91 explicit affected versions

Ubuntu:Pro:14.04:LTS linux-azure

68 explicit affected versions

Ubuntu:20.04:LTS linux-gcp-5.8

4 explicit affected versions

Ubuntu:18.04:LTS linux-dell300x

25 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-oracle

59 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

105 explicit affected versions

Ubuntu:Pro:16.04:LTS linux-hwe

108 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

15 explicit affected versions

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities UBUNTU-CVE-2021-26401

LFENCE/JMP (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD CPUs.

View original source

05 / REFERENCES

Further evidence