LSN-0082-1

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Source

https://ubuntu.com/security/notices/LSN-0082-1

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/lsn/LSN-0082-1.json

JSON Data

https://api.test.osv.dev/v1/vulns/LSN-0082-1

Related

Published

2021-11-11T06:14:44Z

Modified

2021-11-11T06:14:44Z

Summary

Kernel Live Patch Security Notice

Details

Jann Horn discovered that the tty subsystem of the Linux kernel did not use consistent locking in some situations, leading to a read-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly expose sensitive information (kernel memory).(CVE-2020-29660)

Jann Horn discovered a race condition in the tty subsystem of the Linux kernel in the locking for the TIOCSPGRP ioctl(), leading to a use-after- free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2020-29661)

De4dCr0w of 360 Alpha Lab discovered that the BPF verifier in the Linux kernel did not properly handle mod32 destination register truncation when the source register was known to be 0. A local attacker could use this to expose sensitive information (kernel memory) or possibly execute arbitrary code.(CVE-2021-3444)

kernel: use-after-free in route4change() in net/sched/clsroute.c(CVE-2021-3715)

References

Affected packages

Ubuntu:Pro:16.04:LTS / linux-hwe

Package

Name: linux-hwe
Purl: pkg:deb/ubuntu/linux-hwe@4.15.0-136.140~16.04.1?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.15.0-136.140~16.04.1

Affected versions

4.*

4.8.0-36.36~16.04.1

4.8.0-39.42~16.04.1

4.8.0-41.44~16.04.1

4.8.0-42.45~16.04.1

4.8.0-44.47~16.04.1

4.8.0-45.48~16.04.1

4.8.0-46.49~16.04.1

4.8.0-49.52~16.04.1

4.8.0-51.54~16.04.1

4.8.0-52.55~16.04.1

4.8.0-53.56~16.04.1

4.8.0-54.57~16.04.1

4.8.0-56.61~16.04.1

4.8.0-58.63~16.04.1

4.10.0-27.30~16.04.2

4.10.0-28.32~16.04.2

4.10.0-30.34~16.04.1

4.10.0-32.36~16.04.1

4.10.0-33.37~16.04.1

4.10.0-35.39~16.04.1

4.10.0-37.41~16.04.1

4.10.0-38.42~16.04.1

4.10.0-40.44~16.04.1

4.10.0-42.46~16.04.1

4.13.0-26.29~16.04.2

4.13.0-31.34~16.04.1

4.13.0-32.35~16.04.1

4.13.0-36.40~16.04.1

4.13.0-37.42~16.04.1

4.13.0-38.43~16.04.1

4.13.0-39.44~16.04.1

4.13.0-41.46~16.04.1

4.13.0-43.48~16.04.1

4.13.0-45.50~16.04.1

4.15.0-24.26~16.04.1

4.15.0-29.31~16.04.1

4.15.0-30.32~16.04.1

4.15.0-32.35~16.04.1

4.15.0-33.36~16.04.1

4.15.0-34.37~16.04.1

4.15.0-36.39~16.04.1

4.15.0-38.41~16.04.1

4.15.0-39.42~16.04.1

4.15.0-42.45~16.04.1

4.15.0-43.46~16.04.1

4.15.0-45.48~16.04.1

4.15.0-46.49~16.04.1

4.15.0-47.50~16.04.1

4.15.0-48.51~16.04.1

4.15.0-50.54~16.04.1

4.15.0-51.55~16.04.1

4.15.0-52.56~16.04.1

4.15.0-54.58~16.04.1

4.15.0-55.60~16.04.2

4.15.0-58.64~16.04.1

4.15.0-60.67~16.04.1

4.15.0-62.69~16.04.1

4.15.0-64.73~16.04.1

4.15.0-65.74~16.04.1

4.15.0-66.75~16.04.1

4.15.0-69.78~16.04.1

4.15.0-70.79~16.04.1

4.15.0-72.81~16.04.1

4.15.0-74.83~16.04.1

4.15.0-76.86~16.04.1

4.15.0-88.88~16.04.1

4.15.0-91.92~16.04.1

4.15.0-96.97~16.04.1

4.15.0-99.100~16.04.1

4.15.0-101.102~16.04.1

4.15.0-106.107~16.04.1

4.15.0-107.108~16.04.1

4.15.0-112.113~16.04.1

4.15.0-115.116~16.04.1

4.15.0-117.118~16.04.1

4.15.0-118.119~16.04.1

4.15.0-120.122~16.04.1

4.15.0-122.124~16.04.1

4.15.0-123.126~16.04.1

4.15.0-126.129~16.04.1

4.15.0-128.131~16.04.1

4.15.0-129.132~16.04.1

4.15.0-132.136~16.04.1

4.15.0-133.137~16.04.1

Ecosystem specific

{
    "availability": "Livepatch subscription required",
    "module_name_regex": "lkp_Ubuntu_4_15_0[_|\\d]+_(?:generic|lowlatency)_(\\d+)"
}

Ubuntu:Pro:18.04:LTS / linux

Package

Name: linux
Purl: pkg:deb/ubuntu/linux@4.15.0-136.140?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

4.15.0-136.140

Affected versions

4.*

4.13.0-16.19

4.13.0-17.20

4.13.0-25.29

4.13.0-32.35

4.15.0-10.11

4.15.0-12.13

4.15.0-13.14

4.15.0-15.16

4.15.0-19.20

4.15.0-20.21

4.15.0-22.24

4.15.0-23.25

4.15.0-24.26

4.15.0-29.31

4.15.0-30.32

4.15.0-32.35

4.15.0-33.36

4.15.0-34.37

4.15.0-36.39

4.15.0-38.41

4.15.0-39.42

4.15.0-42.45

4.15.0-43.46

4.15.0-44.47

4.15.0-45.48

4.15.0-46.49

4.15.0-47.50

4.15.0-48.51

4.15.0-50.54

4.15.0-51.55

4.15.0-52.56

4.15.0-54.58

4.15.0-55.60

4.15.0-58.64

4.15.0-60.67

4.15.0-62.69

4.15.0-64.73

4.15.0-65.74

4.15.0-66.75

4.15.0-69.78

4.15.0-70.79

4.15.0-72.81

4.15.0-74.84

4.15.0-76.86

4.15.0-88.88

4.15.0-91.92

4.15.0-96.97

4.15.0-99.100

4.15.0-101.102

4.15.0-106.107

4.15.0-108.109

4.15.0-109.110

4.15.0-111.112

4.15.0-112.113

4.15.0-115.116

4.15.0-117.118

4.15.0-118.119

4.15.0-121.123

4.15.0-122.124

4.15.0-123.126

4.15.0-124.127

4.15.0-126.129

4.15.0-128.131

4.15.0-129.132

4.15.0-130.134

4.15.0-132.136

4.15.0-134.138

4.15.0-135.139

Ecosystem specific

{
    "availability": "Livepatch subscription required",
    "module_name_regex": "lkp_Ubuntu_4_15_0[_|\\d]+_(?:generic|lowlatency)_(\\d+)"
}

Ubuntu:Pro:20.04:LTS / linux

Package

Name: linux
Purl: pkg:deb/ubuntu/linux@5.4.0-70.78?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Fixed

5.4.0-70.78

Affected versions

5.*

5.3.0-18.19

5.3.0-24.26

5.4.0-9.12

5.4.0-18.22

5.4.0-21.25

5.4.0-24.28

5.4.0-25.29

5.4.0-26.30

5.4.0-28.32

5.4.0-29.33

5.4.0-31.35

5.4.0-33.37

5.4.0-37.41

5.4.0-39.43

5.4.0-40.44

5.4.0-42.46

5.4.0-45.49

5.4.0-47.51

5.4.0-48.52

5.4.0-51.56

5.4.0-52.57

5.4.0-53.59

5.4.0-54.60

5.4.0-56.62

5.4.0-58.64

5.4.0-59.65

5.4.0-60.67

5.4.0-62.70

5.4.0-64.72

5.4.0-65.73

5.4.0-66.74

5.4.0-67.75

Ecosystem specific

{
    "availability": "Livepatch subscription required",
    "module_name_regex": "lkp_Ubuntu_5_4_0[_|\\d]+_(?:generic|lowlatency)_(\\d+)"
}