CVE-2021-20239
CVE-2021-20239
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
A flaw was found in the Linux kernel in versions before 5.4.92 in the BPF protocol. This flaw allows an attacker with a local account to leak information about kernel internal addresses. The highest threat from this vulnerability is to confidentiality.
CVSS 3.3 · Low · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
kernel
- Versions
- kernel 5.4.92: Affected
No fix published
linux Debian:12
- Affected ranges
- ECOSYSTEM: < 5.10.4-1
Update to 5.10.4-1
linux Debian:13
- Affected ranges
- ECOSYSTEM: < 5.10.4-1
Update to 5.10.4-1
linux Debian:14
- Affected ranges
- ECOSYSTEM: < 5.10.4-1
Update to 5.10.4-1
linux-hwe-edge Ubuntu:16.04:LTS
- Versions
- 4.8.0-28.30~16.04.1
- 4.8.0-30.32~16.04.1
- 4.8.0-32.34~16.04.1
- 4.8.0-34.36~16.04.1
- 4.10.0-14.16~16.04.1
- 4.10.0-19.21~16.04.1
- 4.10.0-20.22~16.04.1
- 4.10.0-21.23~16.04.1
- 4.10.0-22.24~16.04.1
- 4.10.0-24.28~16.04.1
- 4.10.0-26.30~16.04.1
- 4.11.0-13.19~16.04.1
- 4.11.0-14.20~16.04.1
- 4.13.0-16.19~16.04.3
- 4.13.0-17.20~16.04.1
- 4.13.0-19.22~16.04.1
- 4.13.0-21.24~16.04.1
- 4.13.0-25.29~16.04.2
- 4.15.0-13.14~16.04.1
- 4.15.0-15.16~16.04.1
- 4.15.0-20.21~16.04.1
- 4.15.0-22.24~16.04.1
- 4.15.0-23.25~16.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-1018.18~18.04.1
- 5.4.0-1020.20~18.04.2
- 5.4.0-1022.22~18.04.1
- 5.4.0-1024.24~18.04.1
- 5.4.0-1025.25~18.04.1
- 5.4.0-1028.29~18.04.1
- 5.4.0-1029.30~18.04.1
- 5.4.0-1030.31~18.04.1
- 5.4.0-1032.33~18.04.1
- 5.4.0-1034.35~18.04.1
- 5.4.0-1035.37~18.04.1
- 5.4.0-1037.39~18.04.1
- 5.4.0-1038.40~18.04.1
- Affected ranges
- ECOSYSTEM: < 5.4.0-1039.41~18.04.1
Update to 5.4.0-1039.41~18.04.1
linux-azure-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-1020.20~18.04.1
- 5.4.0-1022.22~18.04.1
- 5.4.0-1023.23~18.04.1
- 5.4.0-1025.25~18.04.1
- 5.4.0-1026.26~18.04.1
- 5.4.0-1031.32~18.04.1
- 5.4.0-1032.33~18.04.1
- 5.4.0-1034.35~18.04.1
- 5.4.0-1035.36~18.04.1
- 5.4.0-1036.38~18.04.1
- 5.4.0-1039.41~18.04.1
- 5.4.0-1040.42~18.04.1
- Affected ranges
- ECOSYSTEM: < 5.4.0-1041.43~18.04.1
Update to 5.4.0-1041.43~18.04.1
linux-gcp-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-1019.19~18.04.2
- 5.4.0-1021.21~18.04.1
- 5.4.0-1022.22~18.04.1
- 5.4.0-1024.24~18.04.1
- 5.4.0-1025.25~18.04.1
- 5.4.0-1028.29~18.04.1
- 5.4.0-1029.31~18.04.1
- 5.4.0-1030.32~18.04.1
- 5.4.0-1032.34~18.04.1
- 5.4.0-1033.35~18.04.1
- 5.4.0-1034.37~18.04.1
- 5.4.0-1036.39~18.04.1
- 5.4.0-1037.40~18.04.1
- Affected ranges
- ECOSYSTEM: < 5.4.0-1038.41~18.04.1
Update to 5.4.0-1038.41~18.04.1
linux-gke-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-1025.25~18.04.1
- 5.4.0-1027.28~18.04.1
- 5.4.0-1029.31~18.04.1
- 5.4.0-1030.32~18.04.1
- 5.4.0-1032.34~18.04.1
- 5.4.0-1033.35~18.04.1
- 5.4.0-1035.37~18.04.1
- 5.4.0-1036.38~18.04.1
- Affected ranges
- ECOSYSTEM: < 5.4.0-1037.39~18.04.1
Update to 5.4.0-1037.39~18.04.1
linux-gkeop-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-1001.1
- 5.4.0-1003.3
- 5.4.0-1004.5
- 5.4.0-1005.6
- 5.4.0-1007.8~18.04.1
- 5.4.0-1008.9~18.04.1
- 5.4.0-1009.10~18.04.1
- 5.4.0-1010.11~18.04.1
- Affected ranges
- ECOSYSTEM: < 5.4.0-1011.12~18.04.2
Update to 5.4.0-1011.12~18.04.2
linux-hwe-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-37.41~18.04.1
- 5.4.0-39.43~18.04.1
- 5.4.0-40.44~18.04.1
- 5.4.0-42.46~18.04.1
- 5.4.0-45.49~18.04.2
- 5.4.0-47.51~18.04.1
- 5.4.0-48.52~18.04.1
- 5.4.0-51.56~18.04.1
- 5.4.0-52.57~18.04.1
- 5.4.0-53.59~18.04.1
- 5.4.0-54.60~18.04.1
- 5.4.0-56.62~18.04.1
- 5.4.0-58.64~18.04.1
- 5.4.0-59.65~18.04.1
- 5.4.0-60.67~18.04.1
- 5.4.0-62.70~18.04.1
- 5.4.0-64.72~18.04.1
- 5.4.0-65.73~18.04.1
- 5.4.0-66.74~18.04.2
- Affected ranges
- ECOSYSTEM: < 5.4.0-67.75~18.04.1
Update to 5.4.0-67.75~18.04.1
linux-oracle-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-1019.19~18.04.1
- 5.4.0-1021.21~18.04.1
- 5.4.0-1022.22~18.04.1
- 5.4.0-1024.24~18.04.1
- 5.4.0-1025.25~18.04.1
- 5.4.0-1028.29~18.04.1
- 5.4.0-1029.31~18.04.1
- 5.4.0-1030.32~18.04.1
- 5.4.0-1033.35
- 5.4.0-1034.36~18.04.1
- 5.4.0-1035.38~18.04.1
- 5.4.0-1037.40~18.04.1
- 5.4.0-1038.41~18.04.1
- Affected ranges
- ECOSYSTEM: < 5.4.0-1039.42~18.04.1
Update to 5.4.0-1039.42~18.04.1
linux-raspi-5.4 Ubuntu:18.04:LTS
- Versions
- 5.4.0-1013.13~18.04.1
- 5.4.0-1015.15~18.04.1
- 5.4.0-1016.17~18.04.1
- 5.4.0-1018.20~18.04.1
- 5.4.0-1019.21~18.04.1
- 5.4.0-1021.24~18.04.1
- 5.4.0-1022.25~18.04.1
- 5.4.0-1023.26~18.04.1
- 5.4.0-1025.28~18.04.1
- 5.4.0-1026.29~18.04.1
- 5.4.0-1028.31~18.04.1
- 5.4.0-1029.32~18.04.1
- Affected ranges
- ECOSYSTEM: < 5.4.0-1030.33~18.04.1
Update to 5.4.0-1030.33~18.04.1
linux-aws-5.0 Ubuntu:18.04:LTS
- Versions
- 5.0.0-1021.24~18.04.1
- 5.0.0-1022.25~18.04.1
- 5.0.0-1023.26~18.04.1
- 5.0.0-1024.27~18.04.1
- 5.0.0-1025.28
- 5.0.0-1027.30
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-aws-5.3 Ubuntu:18.04:LTS
- Versions
- 5.3.0-1016.17~18.04.1
- 5.3.0-1017.18~18.04.1
- 5.3.0-1019.21~18.04.1
- 5.3.0-1023.25~18.04.1
- 5.3.0-1028.30~18.04.1
- 5.3.0-1030.32~18.04.1
- 5.3.0-1032.34~18.04.2
- 5.3.0-1033.35
- 5.3.0-1034.36
- 5.3.0-1035.37
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure Ubuntu:18.04:LTS
- Versions
- 4.15.0-1002.2
- 4.15.0-1003.3
- 4.15.0-1004.4
- 4.15.0-1008.8
- 4.15.0-1009.9
- 4.15.0-1012.12
- 4.15.0-1013.13
- 4.15.0-1014.14
- 4.15.0-1018.18
- 4.15.0-1019.19
- 4.15.0-1021.21
- 4.15.0-1022.23
- 4.15.0-1023.24
- 4.15.0-1025.26
- 4.15.0-1028.29
- 4.15.0-1030.31
- 4.15.0-1031.32
- 4.15.0-1032.33
- 4.15.0-1035.36
- 4.15.0-1036.38
- 4.15.0-1037.39
- 4.18.0-1011.11~18.04.1
- 4.18.0-1013.13~18.04.1
- 4.18.0-1014.14~18.04.1
- 4.18.0-1018.18~18.04.1
- 4.18.0-1019.19~18.04.1
- 4.18.0-1020.20~18.04.1
- 4.18.0-1023.24~18.04.1
- 4.18.0-1024.25~18.04.1
- 4.18.0-1025.27~18.04.1
- 5.0.0-1014.14~18.04.1
- 5.0.0-1016.17~18.04.1
- 5.0.0-1018.19~18.04.1
- 5.0.0-1020.21~18.04.1
- 5.0.0-1022.23~18.04.1
- 5.0.0-1023.24~18.04.1
- 5.0.0-1025.27~18.04.1
- 5.0.0-1027.29~18.04.1
- 5.0.0-1028.30~18.04.1
- 5.0.0-1029.31~18.04.1
- 5.0.0-1031.33
- 5.0.0-1032.34
- 5.0.0-1035.37
- 5.0.0-1036.38
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-5.3 Ubuntu:18.04:LTS
- Versions
- 5.3.0-1007.8~18.04.1
- 5.3.0-1008.9~18.04.1
- 5.3.0-1009.10~18.04.1
- 5.3.0-1010.11~18.04.1
- 5.3.0-1012.13~18.04.1
- 5.3.0-1013.14~18.04.1
- 5.3.0-1016.17~18.04.1
- 5.3.0-1018.19~18.04.1
- 5.3.0-1019.20~18.04.1
- 5.3.0-1020.21~18.04.1
- 5.3.0-1022.23~18.04.1
- 5.3.0-1028.29~18.04.1
- 5.3.0-1031.32~18.04.1
- 5.3.0-1032.33~18.04.1
- 5.3.0-1034.35~18.04.1
- 5.3.0-1035.36
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-azure-edge Ubuntu:18.04:LTS
- Versions
- 4.18.0-1006.6~18.04.1
- 4.18.0-1007.7~18.04.1
- 4.18.0-1008.8~18.04.1
- 5.0.0-1012.12~18.04.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gcp Ubuntu:18.04:LTS
- Versions
- 4.15.0-1001.1
- 4.15.0-1003.3
- 4.15.0-1005.5
- 4.15.0-1006.6
- 4.15.0-1008.8
- 4.15.0-1009.9
- 4.15.0-1010.10
- 4.15.0-1014.14
- 4.15.0-1015.15
- 4.15.0-1017.18
- 4.15.0-1018.19
- 4.15.0-1019.20
- 4.15.0-1021.22
- 4.15.0-1023.24
- 4.15.0-1024.25
- 4.15.0-1025.26
- 4.15.0-1026.27
- 4.15.0-1027.28
- 4.15.0-1028.29
- 4.15.0-1029.31
- 4.15.0-1030.32
- 4.15.0-1032.34
- 4.15.0-1033.35
- 4.15.0-1034.36
- 4.15.0-1036.38
- 4.15.0-1037.39
- 4.15.0-1040.42
- 4.15.0-1042.45
- 4.15.0-1044.70
- 5.0.0-1020.20~18.04.1
- 5.0.0-1021.21~18.04.1
- 5.0.0-1025.26~18.04.1
- 5.0.0-1026.27~18.04.1
- 5.0.0-1028.29~18.04.1
- 5.0.0-1029.30~18.04.1
- 5.0.0-1031.32
- 5.0.0-1033.34
- 5.0.0-1034.35
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gcp-5.3 Ubuntu:18.04:LTS
- Versions
- 5.3.0-1008.9~18.04.1
- 5.3.0-1009.10~18.04.1
- 5.3.0-1010.11~18.04.1
- 5.3.0-1012.13~18.04.1
- 5.3.0-1014.15~18.04.1
- 5.3.0-1016.17~18.04.1
- 5.3.0-1017.18~18.04.1
- 5.3.0-1018.19~18.04.1
- 5.3.0-1020.22~18.04.1
- 5.3.0-1026.28~18.04.1
- 5.3.0-1029.31~18.04.1
- 5.3.0-1030.32~18.04.1
- 5.3.0-1032.34~18.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gcp-edge Ubuntu:18.04:LTS
- Versions
- 4.18.0-1004.5~18.04.1
- 4.18.0-1005.6~18.04.1
- 4.18.0-1006.7~18.04.1
- 4.18.0-1007.8~18.04.1
- 4.18.0-1008.9~18.04.1
- 4.18.0-1009.10~18.04.1
- 4.18.0-1011.12~18.04.1
- 4.18.0-1012.13~18.04.1
- 4.18.0-1013.14~18.04.1
- 4.18.0-1015.16~18.04.1
- 5.0.0-1011.11~18.04.1
- 5.0.0-1013.13~18.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-gke-4.15 Ubuntu:18.04:LTS
- Versions
- 4.15.0-1030.32
- 4.15.0-1032.34
- 4.15.0-1033.35
- 4.15.0-1034.36
- 4.15.0-1036.38
- 4.15.0-1037.39
- 4.15.0-1040.42
- 4.15.0-1041.43
- 4.15.0-1042.44
- 4.15.0-1044.46
- 4.15.0-1045.48
- 4.15.0-1046.49
- 4.15.0-1048.51
- 4.15.0-1049.52
- 4.15.0-1050.53
- 4.15.0-1052.55
- 4.15.0-1055.58
- 4.15.0-1057.60
- 4.15.0-1058.61
- 4.15.0-1059.62
- 4.15.0-1063.66
- 4.15.0-1064.67
- 4.15.0-1066.69
- 4.15.0-1067.70
- 4.15.0-1069.72
- 4.15.0-1070.73
- 4.15.0-1072.76
- 4.15.0-1073.78
- 4.15.0-1074.79
- 4.15.0-1076.81
- 4.15.0-1077.82
- 4.15.0-1078.83
- 4.15.0-1079.84
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-hwe Ubuntu:18.04:LTS
- Versions
- 4.18.0-13.14~18.04.1
- 4.18.0-14.15~18.04.1
- 4.18.0-15.16~18.04.1
- 4.18.0-16.17~18.04.1
- 4.18.0-17.18~18.04.1
- 4.18.0-18.19~18.04.1
- 4.18.0-20.21~18.04.1
- 4.18.0-21.22~18.04.1
- 4.18.0-22.23~18.04.1
- 4.18.0-24.25~18.04.1
- 4.18.0-25.26~18.04.1
- 5.0.0-23.24~18.04.1
- 5.0.0-25.26~18.04.1
- 5.0.0-27.28~18.04.1
- 5.0.0-29.31~18.04.1
- 5.0.0-31.33~18.04.1
- 5.0.0-32.34~18.04.2
- 5.0.0-35.38~18.04.1
- 5.0.0-36.39~18.04.1
- 5.0.0-37.40~18.04.1
- 5.3.0-26.28~18.04.1
- 5.3.0-28.30~18.04.1
- 5.3.0-40.32~18.04.1
- 5.3.0-42.34~18.04.1
- 5.3.0-45.37~18.04.1
- 5.3.0-46.38~18.04.1
- 5.3.0-51.44~18.04.2
- 5.3.0-53.47~18.04.1
- 5.3.0-59.53~18.04.1
- 5.3.0-61.55~18.04.1
- 5.3.0-62.56~18.04.1
- 5.3.0-64.58~18.04.1
- 5.3.0-65.59
- 5.3.0-66.60
- 5.3.0-67.61
- 5.3.0-68.63
- 5.3.0-69.65
- 5.3.0-70.66
- 5.3.0-72.68
- 5.3.0-73.69
- 5.3.0-74.70
- 5.3.0-75.71
- 5.3.0-76.72
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
linux-hwe-edge Ubuntu:18.04:LTS
- Versions
- 5.0.0-15.16~18.04.1
- 5.0.0-16.17~18.04.1
- 5.0.0-17.18~18.04.1
- 5.0.0-19.20~18.04.1
- 5.0.0-20.21~18.04.1
- 5.3.0-19.20~18.04.2
- 5.3.0-22.24~18.04.1
- 5.3.0-23.25~18.04.1
- 5.3.0-23.25~18.04.2
- 5.3.0-24.26~18.04.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published