CVE-2021-3506: High severity Linux Linux kernel vulnerability

Published Mar 28, 2021
·
Updated

An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel in versions before 5.12.0-rc4. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Other sources

An out-of-bounds (OOB) memory access flaw was found in fs/f2fs/node.c in the f2fs module in the Linux kernel. A bounds check failure allows a local attacker to gain access to out-of-bounds memory leading to a system crash or a leak of internal kernel information. The highest threat from this vulnerability is to system availability.

Affected Software

133 affected componentsFixes available
redhat/kernel<5.12.0
5.12.0
Linux Linux kernel<5.12
Linux Linux kernel=5.12
Linux Linux kernel=5.12-rc1
Linux Linux kernel=5.12-rc2
Linux Linux kernel=5.12-rc3
Debian Debian Linux=9.0
NetApp Cloud Backup
NetApp Solidfire Baseboard Management Controller Firmware
All of the following
NetApp H300s Firmware
NetApp H300s
All of the following
NetApp H500s Firmware
NetApp H500s
All of the following
NetApp H700s Firmware
NetApp H700s
All of the following
NetApp H300e Firmware
NetApp H300e
All of the following
NetApp H500e Firmware
NetApp H500e
All of the following
NetApp H700e Firmware
NetApp H700e
All of the following
NetApp H410s Firmware
NetApp H410s
All of the following
NetApp H410c Firmware
NetApp H410c
NetApp H300s Firmware
NetApp H300s
NetApp H500s Firmware
NetApp H500s
NetApp H700s Firmware
NetApp H700s
NetApp H300e Firmware
NetApp H300e
NetApp H500e Firmware
NetApp H500e
NetApp H700e Firmware
NetApp H700e
NetApp H410s Firmware
NetApp H410s
NetApp H410c Firmware
NetApp H410c
debian/linux
5.10.223-15.10.234-16.1.129-16.1.135-16.12.25-16.12.27-1
Linux Linux kernel<4.19.191
Linux Linux kernel>=4.20<5.4.118
Linux Linux kernel>=5.5<5.10.36
Linux Linux kernel>=5.11<5.11.20
Linux Linux kernel>=5.12<5.12.3
ubuntu/linux-aws<4.4.0-1102.107
4.4.0-1102.107
ubuntu/linux-azure<4.15.0-1134.147~14.04.1
4.15.0-1134.147~14.04.1
ubuntu/linux-lts-xenial<4.4.0-222.255~14.04.1
4.4.0-222.255~14.04.1
ubuntu/linux*
ubuntu/linux<4.4.0-222.255
4.4.0-222.255
ubuntu/linux-aws<4.4.0-1138.152
4.4.0-1138.152
ubuntu/linux-aws-hwe<4.15.0-1124.133~16.04.1
4.15.0-1124.133~16.04.1
ubuntu/linux-azure<4.15.0-1134.147~16.04.1
4.15.0-1134.147~16.04.1
ubuntu/linux-gcp<4.15.0-1119.133~16.04.1
4.15.0-1119.133~16.04.1
ubuntu/linux-hwe<4.15.0-173.182~16.04.1
4.15.0-173.182~16.04.1
ubuntu/linux-kvm<4.4.0-1103.112
4.4.0-1103.112
ubuntu/linux-oracle<4.15.0-1090.99~16.04.1
4.15.0-1090.99~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-fips<4.4.0-1072.78
4.4.0-1072.78
ubuntu/linux-fips*
ubuntu/linux<4.15.0-173.182
4.15.0-173.182
ubuntu/linux-aws<4.15.0-1124.133
4.15.0-1124.133
ubuntu/linux-aws-5.4<5.4.0-1051.53~18.04.1
5.4.0-1051.53~18.04.1
ubuntu/linux-azure-4.15<4.15.0-1134.147
4.15.0-1134.147
ubuntu/linux-azure-5.4<5.4.0-1051.53~18.04.1
5.4.0-1051.53~18.04.1
ubuntu/linux-dell300x<4.15.0-1038.43
4.15.0-1038.43
ubuntu/linux-gcp-4.15<4.15.0-1119.133
4.15.0-1119.133
ubuntu/linux-gcp-5.4<5.4.0-1046.49~18.04.1
5.4.0-1046.49~18.04.1
ubuntu/linux-gke-5.4<5.4.0-1046.48~18.04.1
5.4.0-1046.48~18.04.1
ubuntu/linux-gkeop-5.4<5.4.0-1018.19~18.04.1
5.4.0-1018.19~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-77.86~18.04.1
5.4.0-77.86~18.04.1
ubuntu/linux-kvm<4.15.0-1110.113
4.15.0-1110.113
ubuntu/linux-oracle<4.15.0-1090.99
4.15.0-1090.99
ubuntu/linux-oracle-5.4<5.4.0-1048.52~18.04.1
5.4.0-1048.52~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1038.41~18.04.1
5.4.0-1038.41~18.04.1
ubuntu/linux-raspi2<4.15.0-1106.113
4.15.0-1106.113
ubuntu/linux-snapdragon<4.15.0-1123.132
4.15.0-1123.132
ubuntu/linux-aws-5.0*
ubuntu/linux-aws-5.3*
ubuntu/linux-azure*
ubuntu/linux-azure-5.3*
ubuntu/linux-azure-edge*
ubuntu/linux-gcp*
ubuntu/linux-gcp-5.3*
ubuntu/linux-gcp-edge*
ubuntu/linux-gke-4.15*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-aws-fips<4.15.0-2064.67
4.15.0-2064.67
ubuntu/linux-azure-fips<4.15.0-2046.50
4.15.0-2046.50
ubuntu/linux-fips<4.15.0-1081.90
4.15.0-1081.90
ubuntu/linux-gcp-fips<4.15.0-2029.32
4.15.0-2029.32
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-77.86
5.4.0-77.86
ubuntu/linux-aws<5.4.0-1051.53
5.4.0-1051.53
ubuntu/linux-aws-5.8<5.8.0-1041.43~20.04.1
5.8.0-1041.43~20.04.1
ubuntu/linux-azure<5.4.0-1051.53
5.4.0-1051.53
ubuntu/linux-azure-5.8<5.8.0-1039.42~20.04.1
5.8.0-1039.42~20.04.1
ubuntu/linux-bluefield<5.4.0-1013.16
5.4.0-1013.16
ubuntu/linux-gcp<5.4.0-1046.49
5.4.0-1046.49
ubuntu/linux-gcp-5.8<5.8.0-1038.40~20.04.1
5.8.0-1038.40~20.04.1
ubuntu/linux-gke<5.4.0-1046.48
5.4.0-1046.48
ubuntu/linux-gkeop<5.4.0-1018.19
5.4.0-1018.19
ubuntu/linux-hwe-5.8<5.8.0-63.71~20.04.1
5.8.0-63.71~20.04.1
ubuntu/linux-kvm<5.4.0-1041.42
5.4.0-1041.42
ubuntu/linux-oem-5.10<5.10.0-1032.33
5.10.0-1032.33
ubuntu/linux-oracle<5.4.0-1048.52
5.4.0-1048.52
ubuntu/linux-oracle-5.8<5.8.0-1037.38~20.04.1
5.8.0-1037.38~20.04.1
ubuntu/linux-raspi<5.4.0-1038.41
5.4.0-1038.41
ubuntu/linux-azure-fde-5.15<5.15.0-1114.123~20.04.1
5.15.0-1114.123~20.04.1
ubuntu/linux-oem-5.6*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.8*
ubuntu/linux-aws-fips<5.4.0-1069.73+fips2
5.4.0-1069.73+fips2
ubuntu/linux-azure-fips<5.4.0-1073.76+fips1
5.4.0-1073.76+fips1
ubuntu/linux-fips<5.4.0-1028.32
5.4.0-1028.32
ubuntu/linux-gcp-fips<5.4.0-1067.71~20.04.1
5.4.0-1067.71~20.04.1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-realtime*
ubuntu/linux-raspi-realtime*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/kernel to a version that resolves this vulnerability.

    Fixed in 5.12.0
  2. Upgrade

    Upgrade debian/linux to a version that resolves this vulnerability.

    Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.25-1Fixed in 6.12.27-1
  3. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.4.0-1102.107
  4. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1134.147~14.04.1
  5. Upgrade

    Upgrade ubuntu/linux-lts-xenial to a version that resolves this vulnerability.

    Fixed in 4.4.0-222.255~14.04.1
  6. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 4.4.0-222.255
  7. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.4.0-1138.152
  8. Upgrade

    Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-1124.133~16.04.1
  9. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 4.15.0-1134.147~16.04.1
  10. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 4.15.0-1119.133~16.04.1
  11. Upgrade

    Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.

    Fixed in 4.15.0-173.182~16.04.1
  12. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 4.4.0-1103.112
  13. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1090.99~16.04.1
  14. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 4.4.0-1072.78
  15. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 4.15.0-173.182
  16. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 4.15.0-1124.133
  17. Upgrade

    Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1051.53~18.04.1
  18. Upgrade

    Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1134.147
  19. Upgrade

    Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1051.53~18.04.1
  20. Upgrade

    Upgrade ubuntu/linux-dell300x to a version that resolves this vulnerability.

    Fixed in 4.15.0-1038.43
  21. Upgrade

    Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1119.133
  22. Upgrade

    Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1046.49~18.04.1
  23. Upgrade

    Upgrade ubuntu/linux-gke-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1046.48~18.04.1
  24. Upgrade

    Upgrade ubuntu/linux-gkeop-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1018.19~18.04.1
  25. Upgrade

    Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-77.86~18.04.1
  26. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 4.15.0-1110.113
  27. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 4.15.0-1090.99
  28. Upgrade

    Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1048.52~18.04.1
  29. Upgrade

    Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.

    Fixed in 5.4.0-1038.41~18.04.1
  30. Upgrade

    Upgrade ubuntu/linux-raspi2 to a version that resolves this vulnerability.

    Fixed in 4.15.0-1106.113
  31. Upgrade

    Upgrade ubuntu/linux-snapdragon to a version that resolves this vulnerability.

    Fixed in 4.15.0-1123.132
  32. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2064.67
  33. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2046.50
  34. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-1081.90
  35. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 4.15.0-2029.32
  36. Upgrade

    Upgrade ubuntu/linux to a version that resolves this vulnerability.

    Fixed in 5.4.0-77.86
  37. Upgrade

    Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.

    Fixed in 5.4.0-1051.53
  38. Upgrade

    Upgrade ubuntu/linux-aws-5.8 to a version that resolves this vulnerability.

    Fixed in 5.8.0-1041.43~20.04.1
  39. Upgrade

    Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.

    Fixed in 5.4.0-1051.53
  40. Upgrade

    Upgrade ubuntu/linux-azure-5.8 to a version that resolves this vulnerability.

    Fixed in 5.8.0-1039.42~20.04.1
  41. Upgrade

    Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.

    Fixed in 5.4.0-1013.16
  42. Upgrade

    Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.

    Fixed in 5.4.0-1046.49
  43. Upgrade

    Upgrade ubuntu/linux-gcp-5.8 to a version that resolves this vulnerability.

    Fixed in 5.8.0-1038.40~20.04.1
  44. Upgrade

    Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.

    Fixed in 5.4.0-1046.48
  45. Upgrade

    Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.

    Fixed in 5.4.0-1018.19
  46. Upgrade

    Upgrade ubuntu/linux-hwe-5.8 to a version that resolves this vulnerability.

    Fixed in 5.8.0-63.71~20.04.1
  47. Upgrade

    Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.

    Fixed in 5.4.0-1041.42
  48. Upgrade

    Upgrade ubuntu/linux-oem-5.10 to a version that resolves this vulnerability.

    Fixed in 5.10.0-1032.33
  49. Upgrade

    Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.

    Fixed in 5.4.0-1048.52
  50. Upgrade

    Upgrade ubuntu/linux-oracle-5.8 to a version that resolves this vulnerability.

    Fixed in 5.8.0-1037.38~20.04.1
  51. Upgrade

    Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.

    Fixed in 5.4.0-1038.41
  52. Upgrade

    Upgrade ubuntu/linux-azure-fde-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1114.123~20.04.1
  53. Upgrade

    Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1069.73+fips2
  54. Upgrade

    Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1073.76+fips1
  55. Upgrade

    Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1028.32
  56. Upgrade

    Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.

    Fixed in 5.4.0-1067.71~20.04.1

Event History

Mar 28, 2021
CVE Published
12:00 AM
Data Sourced
12:00 AM
RemedyDescriptionSeverityWeakness
Apr 19, 2021
CVE Published
via MITRE·09:11 PM
Data Sourced
via MITRE·09:11 PM
DescriptionWeakness
Data Sourced
via OSV·10:15 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·10:15 PM
RemedyDescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2021-3506?

CVE-2021-3506 is considered a high severity vulnerability due to its potential to allow local attackers to gain access to sensitive memory and cause system crashes.

2

How do I fix CVE-2021-3506?

To fix CVE-2021-3506, upgrade to kernel version 5.12.0-rc4 or later for the Linux kernel.

3

Which Linux kernel versions are affected by CVE-2021-3506?

CVE-2021-3506 affects Linux kernel versions prior to 5.12.0-rc4.

4

Is CVE-2021-3506 exploitable remotely?

No, CVE-2021-3506 is not remotely exploitable and requires local access to the system.

5

What impact does CVE-2021-3506 have on the system?

The impact of CVE-2021-3506 includes the potential for system crashes and leakage of internal kernel information due to out-of-bounds memory access.

Company

Resources

Contact

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