CVE-2021-3760: Use After Free

Published Sep 2, 2021
·
Updated

A flaw was found in the Linux kernel in NFC stack (protocol) that is UAF vulnerability of ndev->rfconninfo object.

Other sources

A flaw was found in the Linux kernel. A use-after-free vulnerability in the NFC stack can lead to a threat to confidentiality, integrity, and system availability.

Affected Software

156 affected componentsFixes available
redhat/kernel 5.14.15<100.
100.
redhat/kernel 5.14.15<200.
200.
redhat/kernel 5.14.15<300.
300.
Linux Linux kernel>=4.0<4.4.290
Linux Linux kernel>=4.5<4.9.288
Linux Linux kernel>=4.10<4.14.253
Linux Linux kernel>=4.15<4.19.214
Linux Linux kernel>=4.20<5.4.156
Linux Linux kernel>=5.5<5.10.76
Linux Linux kernel>=5.11<5.14.15
Fedoraproject Fedora=34
Debian Debian Linux=9.0
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
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 Baseboard Management Controller H300s Firmware
NetApp Baseboard Management Controller H300s
NetApp Baseboard Management Controller H500s Firmware
NetApp Baseboard Management Controller H500s
NetApp Baseboard Management Controller H700s Firmware
NetApp Baseboard Management Controller H700s
NetApp Baseboard Management Controller H300e Firmware
NetApp Baseboard Management Controller H300e
NetApp Baseboard Management Controller H500e Firmware
NetApp Baseboard Management Controller H500e
NetApp Baseboard Management Controller H700e Firmware
NetApp Baseboard Management Controller H700e
NetApp Baseboard Management Controller H410s Firmware
NetApp Baseboard Management Controller H410s
NetApp Baseboard Management Controller H410c Firmware
NetApp Baseboard Management Controller H410c
ubuntu/linux-aws<4.4.0-1109.115
4.4.0-1109.115
ubuntu/linux-azure<4.15.0-1129.142~14.04.1
4.15.0-1129.142~14.04.1
ubuntu/linux-lts-xenial<4.4.0-229.263~14.04.1
4.4.0-229.263~14.04.1
ubuntu/linux<4.4.0-229.263
4.4.0-229.263
ubuntu/linux-aws<4.4.0-1145.160
4.4.0-1145.160
ubuntu/linux-aws-hwe<4.15.0-1118.125~16.04.1
4.15.0-1118.125~16.04.1
ubuntu/linux-azure<4.15.0-1129.142~16.04.1
4.15.0-1129.142~16.04.1
ubuntu/linux-gcp<4.15.0-1114.128~16.04.1
4.15.0-1114.128~16.04.1
ubuntu/linux-hwe<4.15.0-166.174~16.04.1
4.15.0-166.174~16.04.1
ubuntu/linux-kvm<4.4.0-1110.120
4.4.0-1110.120
ubuntu/linux-oracle<4.15.0-1085.93~16.04.1
4.15.0-1085.93~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-fips<4.4.0-1079.86
4.4.0-1079.86
ubuntu/linux-fips*
ubuntu/linux<4.15.0-166.174
4.15.0-166.174
ubuntu/linux-aws<4.15.0-1118.125
4.15.0-1118.125
ubuntu/linux-aws-5.4<5.4.0-1061.64~18.04.1
5.4.0-1061.64~18.04.1
ubuntu/linux-azure-4.15<4.15.0-1129.142
4.15.0-1129.142
ubuntu/linux-azure-5.4<5.4.0-1065.68~18.04.1
5.4.0-1065.68~18.04.1
ubuntu/linux-dell300x<4.15.0-1033.38
4.15.0-1033.38
ubuntu/linux-gcp-4.15<4.15.0-1114.128
4.15.0-1114.128
ubuntu/linux-gcp-5.4<5.4.0-1059.63~18.04.1
5.4.0-1059.63~18.04.1
ubuntu/linux-gke-5.4<5.4.0-1057.60~18.04.1
5.4.0-1057.60~18.04.1
ubuntu/linux-gkeop-5.4<5.4.0-1029.30~18.04.2
5.4.0-1029.30~18.04.2
ubuntu/linux-hwe-5.4<5.4.0-92.103~18.04.2
5.4.0-92.103~18.04.2
ubuntu/linux-kvm<4.15.0-1105.107
4.15.0-1105.107
ubuntu/linux-oracle<4.15.0-1085.93
4.15.0-1085.93
ubuntu/linux-oracle-5.4<5.4.0-1059.63~18.04.1
5.4.0-1059.63~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1048.53~18.04.1
5.4.0-1048.53~18.04.1
ubuntu/linux-raspi2<4.15.0-1101.108
4.15.0-1101.108
ubuntu/linux-snapdragon<4.15.0-1118.127
4.15.0-1118.127
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-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<4.15.0-2059.61
4.15.0-2059.61
ubuntu/linux-azure-fips<4.15.0-2041.45
4.15.0-2041.45
ubuntu/linux-fips<4.15.0-1075.84
4.15.0-1075.84
ubuntu/linux-gcp-fips<4.15.0-2024.26
4.15.0-2024.26
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-92.103
5.4.0-92.103
ubuntu/linux-aws<5.4.0-1061.64
5.4.0-1061.64
ubuntu/linux-aws-5.11<5.11.0-1023.24~20.04.1
5.11.0-1023.24~20.04.1
ubuntu/linux-azure<5.4.0-1065.68
5.4.0-1065.68
ubuntu/linux-azure-5.11<5.11.0-1023.24~20.04.1
5.11.0-1023.24~20.04.1
ubuntu/linux-bluefield<5.4.0-1023.26
5.4.0-1023.26
ubuntu/linux-gcp<5.4.0-1059.63
5.4.0-1059.63
ubuntu/linux-gcp-5.11<5.11.0-1024.26~20.04.1
5.11.0-1024.26~20.04.1
ubuntu/linux-gke<5.4.0-1057.60
5.4.0-1057.60
ubuntu/linux-gkeop<5.4.0-1029.30
5.4.0-1029.30
ubuntu/linux-hwe-5.11<5.11.0-44.48~20.04.2
5.11.0-44.48~20.04.2
ubuntu/linux-hwe-5.13<5.13.0-23.23~20.04.2
5.13.0-23.23~20.04.2
ubuntu/linux-ibm<5.4.0-1010.11
5.4.0-1010.11
ubuntu/linux-kvm<5.4.0-1051.53
5.4.0-1051.53
ubuntu/linux-oem-5.10<5.10.0-1051.53
5.10.0-1051.53
ubuntu/linux-oem-5.13<5.13.0-1026.32
5.13.0-1026.32
ubuntu/linux-oem-5.14<5.14.0-1008.8
5.14.0-1008.8
ubuntu/linux-oracle<5.4.0-1059.63
5.4.0-1059.63
ubuntu/linux-oracle-5.11<5.11.0-1023.24~20.04.1
5.11.0-1023.24~20.04.1
ubuntu/linux-raspi<5.4.0-1048.53
5.4.0-1048.53
ubuntu/linux-riscv-5.11<5.11.0-1024.25~20.04.1
5.11.0-1024.25~20.04.1
ubuntu/linux-aws-5.8*
ubuntu/linux-azure-5.8*
ubuntu/linux-gcp-5.8*
ubuntu/linux-hwe-5.8*
ubuntu/linux-intel-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle-5.8*
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<5.4.0-1038.44
5.4.0-1038.44
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*
ubuntu/linux-vmware*
debian/linux
6.1.176-16.1.190-16.12.107-16.12.116-17.2.15-17.3.4-1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/kernel 5.14.15 to a version that resolves this vulnerability.

    Fixed in 100.
  2. Upgrade

    Upgrade redhat/kernel 5.14.15 to a version that resolves this vulnerability.

    Fixed in 200.
  3. Upgrade

    Upgrade redhat/kernel 5.14.15 to a version that resolves this vulnerability.

    Fixed in 300.
  4. Upgrade

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

    Fixed in 4.4.0-1109.115
  5. Upgrade

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

    Fixed in 4.15.0-1129.142~14.04.1
  6. Upgrade

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

    Fixed in 4.4.0-229.263~14.04.1
  7. Upgrade

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

    Fixed in 4.4.0-229.263
  8. Upgrade

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

    Fixed in 4.4.0-1145.160
  9. Upgrade

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

    Fixed in 4.15.0-1118.125~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-1129.142~16.04.1
  11. Upgrade

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

    Fixed in 4.15.0-1114.128~16.04.1
  12. Upgrade

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

    Fixed in 4.15.0-166.174~16.04.1
  13. Upgrade

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

    Fixed in 4.4.0-1110.120
  14. Upgrade

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

    Fixed in 4.15.0-1085.93~16.04.1
  15. Upgrade

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

    Fixed in 4.4.0-1079.86
  16. Upgrade

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

    Fixed in 4.15.0-166.174
  17. Upgrade

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

    Fixed in 4.15.0-1118.125
  18. Upgrade

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

    Fixed in 5.4.0-1061.64~18.04.1
  19. Upgrade

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

    Fixed in 4.15.0-1129.142
  20. Upgrade

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

    Fixed in 5.4.0-1065.68~18.04.1
  21. Upgrade

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

    Fixed in 4.15.0-1033.38
  22. Upgrade

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

    Fixed in 4.15.0-1114.128
  23. Upgrade

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

    Fixed in 5.4.0-1059.63~18.04.1
  24. Upgrade

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

    Fixed in 5.4.0-1057.60~18.04.1
  25. Upgrade

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

    Fixed in 5.4.0-1029.30~18.04.2
  26. Upgrade

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

    Fixed in 5.4.0-92.103~18.04.2
  27. Upgrade

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

    Fixed in 4.15.0-1105.107
  28. Upgrade

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

    Fixed in 4.15.0-1085.93
  29. Upgrade

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

    Fixed in 5.4.0-1059.63~18.04.1
  30. Upgrade

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

    Fixed in 5.4.0-1048.53~18.04.1
  31. Upgrade

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

    Fixed in 4.15.0-1101.108
  32. Upgrade

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

    Fixed in 4.15.0-1118.127
  33. Upgrade

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

    Fixed in 4.15.0-2059.61
  34. Upgrade

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

    Fixed in 4.15.0-2041.45
  35. Upgrade

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

    Fixed in 4.15.0-1075.84
  36. Upgrade

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

    Fixed in 4.15.0-2024.26
  37. Upgrade

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

    Fixed in 5.4.0-92.103
  38. Upgrade

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

    Fixed in 5.4.0-1061.64
  39. Upgrade

    Upgrade ubuntu/linux-aws-5.11 to a version that resolves this vulnerability.

    Fixed in 5.11.0-1023.24~20.04.1
  40. Upgrade

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

    Fixed in 5.4.0-1065.68
  41. Upgrade

    Upgrade ubuntu/linux-azure-5.11 to a version that resolves this vulnerability.

    Fixed in 5.11.0-1023.24~20.04.1
  42. Upgrade

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

    Fixed in 5.4.0-1023.26
  43. Upgrade

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

    Fixed in 5.4.0-1059.63
  44. Upgrade

    Upgrade ubuntu/linux-gcp-5.11 to a version that resolves this vulnerability.

    Fixed in 5.11.0-1024.26~20.04.1
  45. Upgrade

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

    Fixed in 5.4.0-1057.60
  46. Upgrade

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

    Fixed in 5.4.0-1029.30
  47. Upgrade

    Upgrade ubuntu/linux-hwe-5.11 to a version that resolves this vulnerability.

    Fixed in 5.11.0-44.48~20.04.2
  48. Upgrade

    Upgrade ubuntu/linux-hwe-5.13 to a version that resolves this vulnerability.

    Fixed in 5.13.0-23.23~20.04.2
  49. Upgrade

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

    Fixed in 5.4.0-1010.11
  50. Upgrade

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

    Fixed in 5.4.0-1051.53
  51. Upgrade

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

    Fixed in 5.10.0-1051.53
  52. Upgrade

    Upgrade ubuntu/linux-oem-5.13 to a version that resolves this vulnerability.

    Fixed in 5.13.0-1026.32
  53. Upgrade

    Upgrade ubuntu/linux-oem-5.14 to a version that resolves this vulnerability.

    Fixed in 5.14.0-1008.8
  54. Upgrade

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

    Fixed in 5.4.0-1059.63
  55. Upgrade

    Upgrade ubuntu/linux-oracle-5.11 to a version that resolves this vulnerability.

    Fixed in 5.11.0-1023.24~20.04.1
  56. Upgrade

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

    Fixed in 5.4.0-1048.53
  57. Upgrade

    Upgrade ubuntu/linux-riscv-5.11 to a version that resolves this vulnerability.

    Fixed in 5.11.0-1024.25~20.04.1
  58. Upgrade

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

    Fixed in 5.4.0-1069.73+fips2
  59. Upgrade

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

    Fixed in 5.4.0-1073.76+fips1
  60. Upgrade

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

    Fixed in 5.4.0-1038.44
  61. Upgrade

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

    Fixed in 5.4.0-1067.71~20.04.1
  62. Upgrade

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

    Fixed in 6.1.176-1Fixed in 6.1.190-1Fixed in 6.12.107-1Fixed in 6.12.116-1Fixed in 7.2.15-1Fixed in 7.3.4-1

Event History

Sep 15, 2021
CVE Published
09:00 AM
Data Sourced
09:00 AM
RemedyDescriptionSeverityWeakness
Oct 26, 2021
Data Sourced
via OSV·12:00 AM
DescriptionSeverityAffected Software
Feb 16, 2022
CVE Published
via MITRE·06:35 PM
Data Sourced
via MITRE·06:35 PM
DescriptionWeakness

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2021-3760?

CVE-2021-3760 is classified as a use-after-free vulnerability in the Linux kernel's NFC stack, posing risks to confidentiality, integrity, and system availability.

2

How do I fix CVE-2021-3760?

To fix CVE-2021-3760, upgrade to the latest patched versions of the Linux kernel or apply available security patches from your distribution.

3

Which Linux kernel versions are affected by CVE-2021-3760?

CVE-2021-3760 affects various versions of the Linux kernel, including multiple distributions with versions less than 5.14.15 and with specific Debian versions.

4

What types of systems are impacted by CVE-2021-3760?

CVE-2021-3760 impacts systems running vulnerable versions of the Linux kernel, particularly those utilizing NFC stack functionality.

5

Is there a workaround for CVE-2021-3760?

While upgrading is the recommended solution for CVE-2021-3760, temporary workarounds may include disabling NFC functionality if it is not needed.

Company

Resources

Contact

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