LSN-0083-1

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Source
https://ubuntu.com/security/notices/LSN-0083-1
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/lsn/LSN-0083-1.json
JSON Data
https://api.test.osv.dev/v1/vulns/LSN-0083-1
Related
Published
2022-01-06T08:48:25Z
Modified
2022-01-06T08:48:25Z
Summary
Kernel Live Patch Security Notice
Details

The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.(CVE-2018-25020)

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.(CVE-2021-3653)

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages.(CVE-2021-4002)

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-22555)

It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2021-33909)

References

Affected packages

Ubuntu:Pro:16.04:LTS / linux-aws

Package

Name
linux-aws
Purl
pkg:deb/ubuntu/linux-aws@4.4.0-1134.148?arch=source&distro=esm-infra/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.4.0-1134.148

Affected versions

4.*

4.4.0-1001.10
4.4.0-1003.12
4.4.0-1004.13
4.4.0-1007.16
4.4.0-1009.18
4.4.0-1011.20
4.4.0-1012.21
4.4.0-1013.22
4.4.0-1016.25
4.4.0-1017.26
4.4.0-1018.27
4.4.0-1020.29
4.4.0-1022.31
4.4.0-1026.35
4.4.0-1028.37
4.4.0-1030.39
4.4.0-1031.40
4.4.0-1032.41
4.4.0-1035.44
4.4.0-1037.46
4.4.0-1038.47
4.4.0-1039.48
4.4.0-1041.50
4.4.0-1043.52
4.4.0-1044.53
4.4.0-1047.56
4.4.0-1048.57
4.4.0-1049.58
4.4.0-1050.59
4.4.0-1052.61
4.4.0-1054.63
4.4.0-1055.64
4.4.0-1057.66
4.4.0-1060.69
4.4.0-1061.70
4.4.0-1062.71
4.4.0-1063.72
4.4.0-1065.75
4.4.0-1066.76
4.4.0-1067.77
4.4.0-1069.79
4.4.0-1070.80
4.4.0-1072.82
4.4.0-1073.83
4.4.0-1074.84
4.4.0-1075.85
4.4.0-1077.87
4.4.0-1079.89
4.4.0-1081.91
4.4.0-1083.93
4.4.0-1084.94
4.4.0-1085.96
4.4.0-1087.98
4.4.0-1088.99
4.4.0-1090.101
4.4.0-1092.103
4.4.0-1094.105
4.4.0-1095.106
4.4.0-1096.107
4.4.0-1098.109
4.4.0-1099.110
4.4.0-1100.111
4.4.0-1101.112
4.4.0-1102.113
4.4.0-1104.115
4.4.0-1105.116
4.4.0-1106.117
4.4.0-1107.118
4.4.0-1109.120
4.4.0-1110.121
4.4.0-1111.123
4.4.0-1112.124
4.4.0-1113.126
4.4.0-1114.127
4.4.0-1117.131
4.4.0-1118.132
4.4.0-1119.133
4.4.0-1121.135
4.4.0-1122.136
4.4.0-1123.137
4.4.0-1124.138
4.4.0-1126.140
4.4.0-1127.141
4.4.0-1128.142
4.4.0-1129.143
4.4.0-1130.144
4.4.0-1131.145
4.4.0-1132.146
4.4.0-1133.147

Ecosystem specific 

{
    "availability": "Livepatch subscription required",
    "module_name_regex": "lkp_Ubuntu_4_4_0[_|\\d]+_aws_(\\d+)"
}

Ubuntu:Pro:18.04:LTS / linux-aws

Package

Name
linux-aws
Purl
pkg:deb/ubuntu/linux-aws@4.15.0-1118.125?arch=source&distro=bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.15.0-1118.125

Affected versions

4.*

4.15.0-1001.1
4.15.0-1003.3
4.15.0-1005.5
4.15.0-1006.6
4.15.0-1007.7
4.15.0-1009.9
4.15.0-1010.10
4.15.0-1011.11
4.15.0-1016.16
4.15.0-1017.17
4.15.0-1019.19
4.15.0-1020.20
4.15.0-1021.21
4.15.0-1023.23
4.15.0-1025.25
4.15.0-1027.27
4.15.0-1029.30
4.15.0-1031.33
4.15.0-1032.34
4.15.0-1033.35
4.15.0-1034.36
4.15.0-1035.37
4.15.0-1037.39
4.15.0-1039.41
4.15.0-1040.42
4.15.0-1041.43
4.15.0-1043.45
4.15.0-1044.46
4.15.0-1045.47
4.15.0-1047.49
4.15.0-1048.50
4.15.0-1050.52
4.15.0-1051.53
4.15.0-1052.54
4.15.0-1054.56
4.15.0-1056.58
4.15.0-1057.59
4.15.0-1058.60
4.15.0-1060.62
4.15.0-1063.67
4.15.0-1065.69
4.15.0-1066.70
4.15.0-1067.71
4.15.0-1073.77
4.15.0-1076.80
4.15.0-1077.81
4.15.0-1079.83
4.15.0-1080.84
4.15.0-1082.86
4.15.0-1083.87
4.15.0-1086.91
4.15.0-1087.92
4.15.0-1088.93
4.15.0-1090.95
4.15.0-1091.96
4.15.0-1092.98
4.15.0-1093.99
4.15.0-1094.101
4.15.0-1095.102
4.15.0-1096.103
4.15.0-1097.104
4.15.0-1098.105
4.15.0-1099.106
4.15.0-1101.108
4.15.0-1102.109
4.15.0-1103.110
4.15.0-1106.113
4.15.0-1109.116
4.15.0-1110.117
4.15.0-1111.118
4.15.0-1112.119
4.15.0-1114.121
4.15.0-1115.122
4.15.0-1116.123

Ecosystem specific 

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

Ubuntu:Pro:20.04:LTS / linux-aws

Package

Name
linux-aws
Purl
pkg:deb/ubuntu/linux-aws@5.4.0-1061.64?arch=source&distro=focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
5.4.0-1061.64

Affected versions

5.*

5.3.0-1003.3
5.3.0-1008.9
5.3.0-1009.10
5.3.0-1010.11
5.4.0-1005.5
5.4.0-1007.7
5.4.0-1008.8
5.4.0-1009.9
5.4.0-1011.11
5.4.0-1015.15
5.4.0-1017.17
5.4.0-1018.18
5.4.0-1020.20
5.4.0-1021.21
5.4.0-1022.22
5.4.0-1024.24
5.4.0-1025.25
5.4.0-1028.29
5.4.0-1029.30
5.4.0-1030.31
5.4.0-1032.33
5.4.0-1034.35
5.4.0-1035.37
5.4.0-1037.39
5.4.0-1038.40
5.4.0-1039.41
5.4.0-1041.43
5.4.0-1043.45
5.4.0-1045.47
5.4.0-1047.49
5.4.0-1048.50
5.4.0-1049.51
5.4.0-1051.53
5.4.0-1054.57
5.4.0-1055.58
5.4.0-1056.59
5.4.0-1057.60
5.4.0-1058.61
5.4.0-1059.62
5.4.0-1060.63

Ecosystem specific 

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