USN-5135-1: Linux kernel vulnerability

Q: What is the severity of USN-5135-1?

The severity of USN-5135-1 is significant as it can lead to denial of service due to memory exhaustion.

Q: How do I fix USN-5135-1?

To fix USN-5135-1, you should upgrade your affected Linux kernel packages to the recommended versions.

Q: Which systems are affected by USN-5135-1?

USN-5135-1 affects Ubuntu 21.10 systems running specific versions of the Linux kernel.

Q: What vulnerability does USN-5135-1 address?

USN-5135-1 addresses a vulnerability in the Linux kernel related to improper memory accounting for IPC objects.

Q: Can USN-5135-1 be exploited remotely?

No, USN-5135-1 requires local access to exploit the memory exhaustion vulnerability.

Published Nov 9, 2021

Updated

It was discovered that the Linux kernel did not properly account for the memory usage of certain IPC objects. A local attacker could use this to cause a denial of service (memory exhaustion).

Affected Software

138 affected componentsFixes available

All of the following

ubuntu/linux-image-virtual<5.13.0.21.32

5.13.0.21.32

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-21-generic<5.13.0-21.21

5.13.0-21.21

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-generic<5.13.0.21.32

5.13.0.21.32

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-1005-kvm<5.13.0-1005.5

5.13.0-1005.5

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-aws<5.13.0.1006.8

5.13.0.1006.8

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-1010-raspi<5.13.0-1010.12

5.13.0-1010.12

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-raspi-nolpae<5.13.0.1010.16

5.13.0.1010.16

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-azure<5.13.0.1007.8

5.13.0.1007.8

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-oem-20.04<5.13.0.21.32

5.13.0.21.32

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-1007-azure<5.13.0-1007.8

5.13.0-1007.8

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-gke<5.13.0.1006.7

5.13.0.1006.7

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-gcp<5.13.0.1006.7

5.13.0.1006.7

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-1009-oracle<5.13.0-1009.11

5.13.0-1009.11

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-21-generic-64k<5.13.0-21.21

5.13.0-21.21

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-1006-gcp<5.13.0-1006.7

5.13.0-1006.7

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-oracle<5.13.0.1009.11

5.13.0.1009.11

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-raspi<5.13.0.1010.16

5.13.0.1010.16

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-1010-raspi-nolpae<5.13.0-1010.12

5.13.0-1010.12

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-21-lowlatency<5.13.0-21.21

5.13.0-21.21

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-21-generic-lpae<5.13.0-21.21

5.13.0-21.21

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-kvm<5.13.0.1005.5

5.13.0.1005.5

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-generic-lpae<5.13.0.21.32

5.13.0.21.32

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.13.0-1006-aws<5.13.0-1006.7

5.13.0-1006.7

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-generic-64k<5.13.0.21.32

5.13.0.21.32

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-lowlatency<5.13.0.21.32

5.13.0.21.32

Ubuntu Ubuntu=21.10

All of the following

ubuntu/linux-image-5.11.0-40-generic-lpae<5.11.0-40.44

5.11.0-40.44

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-40-lowlatency<5.11.0-40.44

5.11.0-40.44

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-1019-kvm<5.11.0-1019.21

5.11.0-1019.21

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-virtual<5.11.0.40.41

5.11.0.40.41

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-generic-64k<5.11.0.40.41

5.11.0.40.41

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-generic<5.11.0.40.41

5.11.0.40.41

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-aws<5.11.0.1021.22

5.11.0.1021.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-1022-raspi<5.11.0-1022.24

5.11.0-1022.24

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-1021-aws<5.11.0-1021.22

5.11.0-1021.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-azure<5.11.0.1021.22

5.11.0.1021.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-raspi-nolpae<5.11.0.1022.20

5.11.0.1022.20

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-oem-20.04<5.11.0.40.41

5.11.0.40.41

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-gke<5.11.0.1022.22

5.11.0.1022.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-gcp<5.11.0.1022.22

5.11.0.1022.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-1022-raspi-nolpae<5.11.0-1022.24

5.11.0-1022.24

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-40-generic-64k<5.11.0-40.44

5.11.0-40.44

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-1021-oracle<5.11.0-1021.22

5.11.0-1021.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-oracle<5.11.0.1021.22

5.11.0.1021.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-1022-gcp<5.11.0-1022.24

5.11.0-1022.24

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-raspi<5.11.0.1022.20

5.11.0.1022.20

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-1021-azure<5.11.0-1021.22

5.11.0-1021.22

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-kvm<5.11.0.1019.20

5.11.0.1019.20

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-generic-lpae<5.11.0.40.41

5.11.0.40.41

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-40-generic<5.11.0-40.44

5.11.0-40.44

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-lowlatency<5.11.0.40.41

5.11.0.40.41

Ubuntu Ubuntu=21.04

All of the following

ubuntu/linux-image-5.11.0-40-generic-lpae<5.11.0-40.44~20.04.2

5.11.0-40.44~20.04.2

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.11.0-40-lowlatency<5.11.0-40.44~20.04.2

5.11.0-40.44~20.04.2

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.11.0-1021-aws<5.11.0-1021.22~20.04.2

5.11.0-1021.22~20.04.2

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-virtual-hwe-20.04<5.11.0.40.44~20.04.18

5.11.0.40.44~20.04.18

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-aws<5.11.0.1021.22~20.04.20

5.11.0.1021.22~20.04.20

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-lowlatency-hwe-20.04<5.11.0.40.44~20.04.18

5.11.0.40.44~20.04.18

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.11.0-1021-azure<5.11.0-1021.22~20.04.1

5.11.0-1021.22~20.04.1

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-oem-20.04c<5.13.0.1019.23

5.13.0.1019.23

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-azure<5.11.0.1021.22~20.04.21

5.11.0.1021.22~20.04.21

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.13.0-1019-oem<5.13.0-1019.23

5.13.0-1019.23

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.11.0-1022-gcp<5.11.0-1022.24~20.04.1

5.11.0-1022.24~20.04.1

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-gcp<5.11.0.1022.24~20.04.21

5.11.0.1022.24~20.04.21

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.11.0-40-generic-64k<5.11.0-40.44~20.04.2

5.11.0-40.44~20.04.2

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.11.0-1021-oracle<5.11.0-1021.22~20.04.1

5.11.0-1021.22~20.04.1

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-oracle<5.11.0.1021.22~20.04.14

5.11.0.1021.22~20.04.14

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-generic-lpae-hwe-20.04<5.11.0.40.44~20.04.18

5.11.0.40.44~20.04.18

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-generic-hwe-20.04<5.11.0.40.44~20.04.18

5.11.0.40.44~20.04.18

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-generic-64k-hwe-20.04<5.11.0.40.44~20.04.18

5.11.0.40.44~20.04.18

Ubuntu Ubuntu=20.04

All of the following

ubuntu/linux-image-5.11.0-40-generic<5.11.0-40.44~20.04.2

5.11.0-40.44~20.04.2

Ubuntu Ubuntu=20.04

Event History

Nov 9, 2021

Advisory Published

via Ubuntu·12:00 AM

Child vulnerabilities

Contains the following vulnerabilities.

CVE-2021-3759

Frequently Asked Questions

What is the severity of USN-5135-1?

The severity of USN-5135-1 is significant as it can lead to denial of service due to memory exhaustion.

How do I fix USN-5135-1?

To fix USN-5135-1, you should upgrade your affected Linux kernel packages to the recommended versions.

Which systems are affected by USN-5135-1?

USN-5135-1 affects Ubuntu 21.10 systems running specific versions of the Linux kernel.

What vulnerability does USN-5135-1 address?

USN-5135-1 addresses a vulnerability in the Linux kernel related to improper memory accounting for IPC objects.

Can USN-5135-1 be exploited remotely?

No, USN-5135-1 requires local access to exploit the memory exhaustion vulnerability.

USN-5135-1: Linux kernel vulnerability

Affected Software

Event History

Child vulnerabilities

Frequently Asked Questions

What is the severity of USN-5135-1?

How do I fix USN-5135-1?

Which systems are affected by USN-5135-1?

What vulnerability does USN-5135-1 address?

Can USN-5135-1 be exploited remotely?

Company

Resources

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