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UBUNTU-CVE-2020-27152 | Mondoo Vulnerability Intelligence

UBUNTU-CVE-2020-27152

MEDIUM5.5

An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge trigge

Published Nov 6, 2020

Modified 6 months ago

Fix available

Details

An issue was discovered in ioapic_lazy_update_eoi in arch/x86/kvm/ioapic.c in the Linux kernel before 5.9.2. It has an infinite loop related to improper interaction between a resampler and edge triggering, aka CID-77377064c3a9.

Affected Packages

Ubuntu:20.04:LTSlinux

Affected versions:

5.3.0-18.195.3.0-24.26

Fixed in:

5.4.0-9.12

Ubuntu:18.04:LTSlinux

Fixed in:

4.13.0-16.19

Ubuntu:Pro:14.04:LTSlinux

Affected versions:

3.11.0-12.193.12.0-1.33.12.0-2.53.12.0-2.73.12.0-3.83.12.0-3.93.12.0-4.103.12.0-4.123.12.0-5.133.12.0-7.15+170 more

Ubuntu:14.04:LTSlinux

Affected versions:

3.11.0-12.193.12.0-1.33.12.0-2.53.12.0-2.73.12.0-3.83.12.0-3.93.12.0-4.103.12.0-4.123.12.0-5.133.12.0-7.15+170 more

Ubuntu:16.04:LTSlinux

Fixed in:

4.2.0-16.19

Ubuntu:16.04:LTSlinux-aws

Fixed in:

4.4.0-1001.10

Ubuntu:18.04:LTSlinux-aws

Fixed in:

4.15.0-1001.1

Ubuntu:Pro:14.04:LTSlinux-aws

Affected versions:

4.4.0-1002.24.4.0-1003.34.4.0-1005.54.4.0-1006.64.4.0-1009.94.4.0-1010.104.4.0-1011.114.4.0-1012.124.4.0-1014.144.4.0-1016.16+94 more

Ubuntu:20.04:LTSlinux-aws

Affected versions:

5.3.0-1003.35.3.0-1008.95.3.0-1009.105.3.0-1010.11

Fixed in:

5.4.0-1005.5

Ubuntu:Pro:18.04:LTSlinux-aws-5.0

Affected versions:

5.0.0-1021.24~18.04.15.0.0-1022.25~18.04.15.0.0-1023.26~18.04.15.0.0-1024.27~18.04.15.0.0-1025.285.0.0-1027.30

Ubuntu:Pro:18.04:LTSlinux-aws-5.3

Affected versions:

5.3.0-1016.17~18.04.15.3.0-1017.18~18.04.15.3.0-1019.21~18.04.15.3.0-1023.25~18.04.15.3.0-1028.30~18.04.15.3.0-1030.32~18.04.15.3.0-1032.34~18.04.25.3.0-1033.355.3.0-1034.365.3.0-1035.37

Ubuntu:18.04:LTSlinux-aws-5.4

Fixed in:

5.4.0-1018.18~18.04.1

Ubuntu:16.04:LTSlinux-aws-hwe

Fixed in:

4.15.0-1030.31~16.04.1

Ubuntu:Pro:14.04:LTSlinux-azure

Affected versions:

4.15.0-1023.24~14.04.14.15.0-1030.31~14.04.14.15.0-1031.32~14.04.14.15.0-1032.33~14.04.24.15.0-1035.36~14.04.24.15.0-1036.38~14.04.24.15.0-1037.39~14.04.24.15.0-1039.41~14.04.24.15.0-1040.44~14.04.14.15.0-1041.45~14.04.1+89 more

Ubuntu:20.04:LTSlinux-azure

Affected versions:

5.3.0-1003.35.3.0-1008.95.3.0-1009.10

Fixed in:

5.4.0-1006.6

Ubuntu:Pro:18.04:LTSlinux-azure

Affected versions:

4.15.0-1002.24.15.0-1003.34.15.0-1004.44.15.0-1008.84.15.0-1009.94.15.0-1012.124.15.0-1013.134.15.0-1014.144.15.0-1018.184.15.0-1019.19+34 more

Ubuntu:16.04:LTSlinux-azure

Fixed in:

4.11.0-1009.9

Ubuntu:18.04:LTSlinux-azure-4.15

Fixed in:

4.15.0-1082.92

Ubuntu:Pro:18.04:LTSlinux-azure-5.3

Affected versions:

5.3.0-1007.8~18.04.15.3.0-1008.9~18.04.15.3.0-1009.10~18.04.15.3.0-1010.11~18.04.15.3.0-1012.13~18.04.15.3.0-1013.14~18.04.15.3.0-1016.17~18.04.15.3.0-1018.19~18.04.15.3.0-1019.20~18.04.15.3.0-1020.21~18.04.1+6 more

Ubuntu:18.04:LTSlinux-azure-5.4

Fixed in:

5.4.0-1020.20~18.04.1

Ubuntu:Pro:18.04:LTSlinux-azure-edge

Affected versions:

4.18.0-1006.6~18.04.14.18.0-1007.7~18.04.14.18.0-1008.8~18.04.15.0.0-1012.12~18.04.2

Ubuntu:18.04:LTSlinux-dell300x

Fixed in:

4.15.0-1005.8

Ubuntu:16.04:LTSlinux-gcp

Fixed in:

4.10.0-1004.4

Ubuntu:Pro:18.04:LTSlinux-gcp

Affected versions:

4.15.0-1001.14.15.0-1003.34.15.0-1005.54.15.0-1006.64.15.0-1008.84.15.0-1009.94.15.0-1010.104.15.0-1014.144.15.0-1015.154.15.0-1017.18+28 more

Ubuntu:20.04:LTSlinux-gcp

Affected versions:

5.3.0-1004.45.3.0-1009.105.3.0-1011.12

Fixed in:

5.4.0-1005.5

Ubuntu:18.04:LTSlinux-gcp-4.15

Fixed in:

4.15.0-1071.81

Ubuntu:Pro:18.04:LTSlinux-gcp-5.3

Affected versions:

5.3.0-1008.9~18.04.15.3.0-1009.10~18.04.15.3.0-1010.11~18.04.15.3.0-1012.13~18.04.15.3.0-1014.15~18.04.15.3.0-1016.17~18.04.15.3.0-1017.18~18.04.15.3.0-1018.19~18.04.15.3.0-1020.22~18.04.15.3.0-1026.28~18.04.1+3 more

Ubuntu:18.04:LTSlinux-gcp-5.4

Fixed in:

5.4.0-1019.19~18.04.2

Ubuntu:Pro:18.04:LTSlinux-gcp-edge

Affected versions:

4.18.0-1004.5~18.04.14.18.0-1005.6~18.04.14.18.0-1006.7~18.04.14.18.0-1007.8~18.04.14.18.0-1008.9~18.04.14.18.0-1009.10~18.04.14.18.0-1011.12~18.04.14.18.0-1012.13~18.04.14.18.0-1013.14~18.04.14.18.0-1015.16~18.04.1+2 more

Ubuntu:18.04:LTSlinux-gke-4.15

Fixed in:

4.15.0-1030.32

Ubuntu:18.04:LTSlinux-gke-5.0

Fixed in:

5.0.0-1011.11~18.04.1

Ubuntu:18.04:LTSlinux-gke-5.3

Fixed in:

5.3.0-1011.12~18.04.1

Ubuntu:18.04:LTSlinux-gke-5.4

Fixed in:

5.4.0-1025.25~18.04.1

Ubuntu:20.04:LTSlinux-gkeop

Fixed in:

5.4.0-1008.9

Ubuntu:18.04:LTSlinux-gkeop-5.4

Fixed in:

5.4.0-1001.1

Ubuntu:Pro:18.04:LTSlinux-hwe

Affected versions:

4.18.0-13.14~18.04.14.18.0-14.15~18.04.14.18.0-15.16~18.04.14.18.0-16.17~18.04.14.18.0-17.18~18.04.14.18.0-18.19~18.04.14.18.0-20.21~18.04.14.18.0-21.22~18.04.14.18.0-22.23~18.04.14.18.0-24.25~18.04.1+33 more

Ubuntu:16.04:LTSlinux-hwe

Fixed in:

4.8.0-36.36~16.04.1

Ubuntu:18.04:LTSlinux-hwe-5.4

Fixed in:

5.4.0-37.41~18.04.1

Ubuntu:20.04:LTSlinux-hwe-5.8

Affected versions:

5.8.0-23.24~20.04.15.8.0-25.26~20.04.15.8.0-28.30~20.04.15.8.0-29.31~20.04.1

Fixed in:

5.8.0-31.33~20.04.1

Ubuntu:Pro:16.04:LTSlinux-hwe-edge

Affected versions:

4.10.0-14.16~16.04.14.10.0-19.21~16.04.14.10.0-20.22~16.04.14.10.0-21.23~16.04.14.10.0-22.24~16.04.14.10.0-24.28~16.04.14.10.0-26.30~16.04.14.11.0-13.19~16.04.14.11.0-14.20~16.04.14.13.0-16.19~16.04.3+13 more

Ubuntu:Pro:18.04:LTSlinux-hwe-edge

Affected versions:

5.0.0-15.16~18.04.15.0.0-16.17~18.04.15.0.0-17.18~18.04.15.0.0-19.20~18.04.15.0.0-20.21~18.04.15.3.0-19.20~18.04.25.3.0-22.24~18.04.15.3.0-23.25~18.04.15.3.0-23.25~18.04.25.3.0-24.26~18.04.2

Ubuntu:20.04:LTSlinux-kvm

Affected versions:

5.3.0-1003.35.3.0-1008.95.3.0-1009.10

Fixed in:

5.4.0-1004.4

Ubuntu:16.04:LTSlinux-kvm

Fixed in:

4.4.0-1004.9

Ubuntu:18.04:LTSlinux-kvm

Fixed in:

4.15.0-1002.2

Ubuntu:Pro:14.04:LTSlinux-lts-xenial

Affected versions:

4.4.0-101.124~14.04.14.4.0-103.126~14.04.14.4.0-104.127~14.04.14.4.0-108.131~14.04.14.4.0-109.132~14.04.14.4.0-111.134~14.04.14.4.0-112.135~14.04.14.4.0-116.140~14.04.14.4.0-119.143~14.04.14.4.0-121.145~14.04.1+138 more

Ubuntu:18.04:LTSlinux-oem

Fixed in:

4.15.0-1002.3

Ubuntu:20.04:LTSlinux-oem-5.10

Fixed in:

5.10.0-1008.9

Ubuntu:20.04:LTSlinux-oem-5.6

Affected versions:

5.6.0-1007.75.6.0-1008.85.6.0-1010.105.6.0-1011.115.6.0-1013.135.6.0-1017.175.6.0-1018.185.6.0-1020.205.6.0-1021.215.6.0-1023.23+12 more

Fixed in:

5.6.0-1048.52

Ubuntu:20.04:LTSlinux-oracle

Affected versions:

5.3.0-1002.25.3.0-1007.85.3.0-1008.9

Fixed in:

5.4.0-1005.5

Ubuntu:16.04:LTSlinux-oracle

Fixed in:

4.15.0-1007.9~16.04.1

Ubuntu:18.04:LTSlinux-oracle

Fixed in:

4.15.0-1007.9

Ubuntu:Pro:18.04:LTSlinux-oracle-5.0

Affected versions:

5.0.0-1007.12~18.04.15.0.0-1008.13~18.04.15.0.0-1009.14~18.04.15.0.0-1010.15~18.04.15.0.0-1011.165.0.0-1013.185.0.0-1014.19

Ubuntu:Pro:18.04:LTSlinux-oracle-5.3

Affected versions:

5.3.0-1011.12~18.04.15.3.0-1013.14~18.04.15.3.0-1014.15~18.04.15.3.0-1016.18~18.04.15.3.0-1018.20~18.04.15.3.0-1024.26~18.04.15.3.0-1027.29~18.04.15.3.0-1028.30~18.04.15.3.0-1030.32~18.04.1

Ubuntu:18.04:LTSlinux-oracle-5.4

Fixed in:

5.4.0-1019.19~18.04.1

Ubuntu:20.04:LTSlinux-raspi

Fixed in:

5.4.0-1007.7

Ubuntu:18.04:LTSlinux-raspi-5.4

Fixed in:

5.4.0-1013.13~18.04.1

Ubuntu:18.04:LTSlinux-raspi2

Fixed in:

4.13.0-1005.5

Ubuntu:16.04:LTSlinux-raspi2

Fixed in:

4.2.0-1013.19

Ubuntu:Pro:20.04:LTSlinux-raspi2

Affected versions:

5.3.0-1007.85.3.0-1014.165.3.0-1015.175.3.0-1017.195.4.0-1004.45.4.0-1006.6

Ubuntu:18.04:LTSlinux-raspi2-5.3

Fixed in:

5.3.0-1017.19~18.04.1

Ubuntu:20.04:LTSlinux-riscv

Fixed in:

5.4.0-24.28

Ubuntu:18.04:LTSlinux-snapdragon

Fixed in:

4.4.0-1077.82

Ubuntu:16.04:LTSlinux-snapdragon

Affected versions:

4.4.0-1012.124.4.0-1013.14

Fixed in:

4.4.0-1013.15

References

REPORThttps://bugzilla.kernel.org/show_bug.cgi?id=208767 REPORThttps://bugzilla.redhat.com/show_bug.cgi?id=1888886 REPORThttps://ubuntu.com/security/CVE-2020-27152 REPORThttps://ubuntu.com/security/notices/USN-4659-1 REPORThttps://ubuntu.com/security/notices/USN-4752-1 REPORThttps://www.cve.org/CVERecord?id=CVE-2020-27152 REPORThttps://www.openwall.com/lists/oss-security/2020/11/03/1

CVSS Analysis

CVSS v3.1

5.5

Exploitability

Attack Vector

LocalAV:L

Attack Complexity

LowAC:L

Privileges Required

LowPR:L

User Interaction

NoneUI:N

Scope

Scope

UnchangedS:U

Impact

Confidentiality

NoneC:N

Integrity

NoneI:N

Availability

HighA:H

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

Related

CVE-2020-27152 USN-4659-1 USN-4752-1

Ecosystems

Ubuntu 20.04 LTS Ubuntu 18.04 LTS Ubuntu Pro 14.04 LTS Ubuntu 14.04 LTS Ubuntu 16.04 LTS Ubuntu Pro 18.04 LTS Ubuntu Pro 16.04 LTS Ubuntu Pro 20.04 LTS

Timeline

PublishedNov 6, 2020

ModifiedJul 1, 2025