CVE-2022-42896: Info Leak in l2cap_core in the Linux Kernel

Published Nov 23, 2022
·
Updated

Last updated 25 April 2025

Other sources

Linux Kernel could allow a remote attacker from within the local network to execute arbitrary code on the system, caused by multiple use-after-free vulnerabilities in the net/bluetooth/l2capcore.c's l2capconnect and l2capleconnectreq functions. By using Bluetooth within proximity of the victim, an attacker could exploit this vulnerability to execute arbitrary code on the system and leak kernel memory.

— IBM

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2capcore.c's l2capconnect and l2capleconnectreq functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim.

References:

https://github.com/google/security-research/security/advisories/GHSA-pf87-6c9q-jvm4 https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://github.com/torvalds/linux/commit/f937b758a188d6fd328a81367087eddbb2fce50f

— Red Hat

There are use-after-free vulnerabilities in the Linux kernel's net/bluetooth/l2capcore.c's l2capconnect and l2capleconnectreq functions which may allow code execution and leaking kernel memory (respectively) remotely via Bluetooth. A remote attacker could execute code leaking kernel memory via Bluetooth if within proximity of the victim.

We recommend upgrading past commit  https://www.google.com/url https://github.com/torvalds/linux/commit/711f8c3fb3db61897080468586b970c87c61d9e4 https://www.google.com/url

— NVD

Affected Software

151 affected componentsFixes available
Linux Linux kernel<4.9.335
Linux Linux kernel>=4.10<4.14.301
Linux Linux kernel>=4.15<4.19.268
Linux Linux kernel>=4.20<5.4.226
Linux Linux kernel>=5.5<5.10.154
Linux Linux kernel>=5.11<5.15.78
Linux Linux kernel>=5.16<6.0.8
IBM Security Verify Governance, Identity Manager software component<=ISVG 10.0.2
IBM Security Verify Governance, Identity Manager virtual appliance component<=ISVG 10.0.2
redhat/kernel<6.1
6.1
debian/linux
6.1.176-16.1.190-16.12.107-16.12.115-27.2.12-17.2.15-1
debian/linux<6.0.10-1
6.0.10-1
debian/linux<6.0.10-1
6.0.10-1
debian/linux<6.0.10-1
6.0.10-1
ubuntu/linux-aws<4.4.0-1115.121
4.4.0-1115.121
ubuntu/linux-azure<4.15.0-1159.174~14.04.1
4.15.0-1159.174~14.04.1
ubuntu/linux-lts-xenial<4.4.0-236.270~14.04.1
4.4.0-236.270~14.04.1
ubuntu/linux<4.4.0-236.270
4.4.0-236.270
ubuntu/linux-aws<4.4.0-1153.168
4.4.0-1153.168
ubuntu/linux-aws-hwe<4.15.0-1148.160~16.04.1
4.15.0-1148.160~16.04.1
ubuntu/linux-azure<4.15.0-1159.174~16.04.1
4.15.0-1159.174~16.04.1
ubuntu/linux-gcp<4.15.0-1143.159~16.04.1
4.15.0-1143.159~16.04.1
ubuntu/linux-hwe<4.15.0-202.213~16.04.1
4.15.0-202.213~16.04.1
ubuntu/linux-kvm<4.4.0-1116.126
4.4.0-1116.126
ubuntu/linux-oracle<4.15.0-1113.124~16.04.1
4.15.0-1113.124~16.04.1
ubuntu/linux-hwe-edge*
ubuntu/linux-fips<4.4.0-1085.92
4.4.0-1085.92
ubuntu/linux-fips*
ubuntu/linux<4.15.0-202.213
4.15.0-202.213
ubuntu/linux-aws<4.15.0-1148.160
4.15.0-1148.160
ubuntu/linux-aws-5.4<5.4.0-1094.102~18.04.1
5.4.0-1094.102~18.04.1
ubuntu/linux-azure-4.15<4.15.0-1159.174
4.15.0-1159.174
ubuntu/linux-azure-5.4<5.4.0-1101.107~18.04.1
5.4.0-1101.107~18.04.1
ubuntu/linux-dell300x<4.15.0-1060.65
4.15.0-1060.65
ubuntu/linux-gcp-4.15<4.15.0-1143.159
4.15.0-1143.159
ubuntu/linux-gcp-5.4<5.4.0-1098.107~18.04.1
5.4.0-1098.107~18.04.1
ubuntu/linux-hwe-5.4<5.4.0-137.154~18.04.1
5.4.0-137.154~18.04.1
ubuntu/linux-ibm-5.4<5.4.0-1042.47~18.04.1
5.4.0-1042.47~18.04.1
ubuntu/linux-kvm<4.15.0-1134.139
4.15.0-1134.139
ubuntu/linux-oracle<4.15.0-1113.124
4.15.0-1113.124
ubuntu/linux-oracle-5.4<5.4.0-1092.101~18.04.1
5.4.0-1092.101~18.04.1
ubuntu/linux-raspi-5.4<5.4.0-1079.90~18.04.1
5.4.0-1079.90~18.04.1
ubuntu/linux-raspi2<4.15.0-1126.134
4.15.0-1126.134
ubuntu/linux-snapdragon<4.15.0-1144.154
4.15.0-1144.154
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-gke-5.4*
ubuntu/linux-gkeop-5.4*
ubuntu/linux-hwe*
ubuntu/linux-hwe-edge*
ubuntu/linux-oem*
ubuntu/linux-oracle-5.0*
ubuntu/linux-oracle-5.3*
ubuntu/linux-aws-fips<4.15.0-2087.93
4.15.0-2087.93
ubuntu/linux-azure-fips<4.15.0-2068.74
4.15.0-2068.74
ubuntu/linux-fips<4.15.0-1105.116
4.15.0-1105.116
ubuntu/linux-gcp-fips<4.15.0-2052.57
4.15.0-2052.57
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.4.0-137.154
5.4.0-137.154
ubuntu/linux-aws<5.4.0-1094.102
5.4.0-1094.102
ubuntu/linux-aws-5.15<5.15.0-1028.32~20.04.1
5.15.0-1028.32~20.04.1
ubuntu/linux-azure<5.4.0-1101.107
5.4.0-1101.107
ubuntu/linux-azure-5.15<5.15.0-1031.38~20.04.1
5.15.0-1031.38~20.04.1
ubuntu/linux-bluefield<5.4.0-1058.64
5.4.0-1058.64
ubuntu/linux-gcp<5.4.0-1098.107
5.4.0-1098.107
ubuntu/linux-gcp-5.15<5.15.0-1027.34~20.04.1
5.15.0-1027.34~20.04.1
ubuntu/linux-gke<5.4.0-1094.101
5.4.0-1094.101
ubuntu/linux-gke-5.15<5.15.0-1027.32~20.04.1
5.15.0-1027.32~20.04.1
ubuntu/linux-gkeop<5.4.0-1062.66
5.4.0-1062.66
ubuntu/linux-gkeop-5.15<5.15.0-1013.17~20.04.1
5.15.0-1013.17~20.04.1
ubuntu/linux-hwe-5.15<5.15.0-58.64~20.04.1
5.15.0-58.64~20.04.1
ubuntu/linux-ibm<5.4.0-1042.47
5.4.0-1042.47
ubuntu/linux-intel-iotg-5.15<5.15.0-1023.28~20.04.1
5.15.0-1023.28~20.04.1
ubuntu/linux-iot<5.4.0-1011.13
5.4.0-1011.13
ubuntu/linux-kvm<5.4.0-1084.90
5.4.0-1084.90
ubuntu/linux-lowlatency-hwe-5.15<5.15.0-58.64~20.04.1
5.15.0-58.64~20.04.1
ubuntu/linux-oem-5.14<5.14.0-1056.63
5.14.0-1056.63
ubuntu/linux-oracle<5.4.0-1092.101
5.4.0-1092.101
ubuntu/linux-oracle-5.15<5.15.0-1027.33~20.04.1
5.15.0-1027.33~20.04.1
ubuntu/linux-raspi<5.4.0-1079.90
5.4.0-1079.90
ubuntu/linux-riscv-5.15<5.15.0-1028.32~20.04.1
5.15.0-1028.32~20.04.1
ubuntu/linux-xilinx-zynqmp<5.4.0-1021.25
5.4.0-1021.25
ubuntu/linux-aws-5.11*
ubuntu/linux-aws-5.13*
ubuntu/linux-aws-5.8*
ubuntu/linux-azure-5.11*
ubuntu/linux-azure-5.13*
ubuntu/linux-azure-5.8*
ubuntu/linux-gcp-5.11*
ubuntu/linux-gcp-5.13*
ubuntu/linux-gcp-5.8*
ubuntu/linux-hwe-5.11*
ubuntu/linux-hwe-5.13*
ubuntu/linux-hwe-5.8*
ubuntu/linux-intel-5.13*
ubuntu/linux-oem-5.10*
ubuntu/linux-oem-5.13*
ubuntu/linux-oem-5.6*
ubuntu/linux-oracle-5.11*
ubuntu/linux-oracle-5.13*
ubuntu/linux-oracle-5.8*
ubuntu/linux-raspi2*
ubuntu/linux-riscv*
ubuntu/linux-riscv-5.11*
ubuntu/linux-riscv-5.8*
ubuntu/linux-aws-fips<5.4.0-1094.102+fips1
5.4.0-1094.102+fips1
ubuntu/linux-azure-fips<5.4.0-1101.107+fips1
5.4.0-1101.107+fips1
ubuntu/linux-fips<5.4.0-1070.79
5.4.0-1070.79
ubuntu/linux-gcp-fips<5.4.0-1098.107+fips1
5.4.0-1098.107+fips1
ubuntu/linux-aws-fips*
ubuntu/linux-azure-fips*
ubuntu/linux-fips*
ubuntu/linux-gcp-fips*
ubuntu/linux<5.15.0-58.64
5.15.0-58.64
ubuntu/linux-aws<5.15.0-1028.32
5.15.0-1028.32
ubuntu/linux-aws-6.2*
ubuntu/linux-azure<5.15.0-1031.38
5.15.0-1031.38
ubuntu/linux-azure-6.2*
ubuntu/linux-azure-fde<5.15.0-1031.38.1
5.15.0-1031.38.1
ubuntu/linux-azure-fde-6.2*
ubuntu/linux-gcp<5.15.0-1027.34
5.15.0-1027.34
ubuntu/linux-gcp-6.2*
ubuntu/linux-gke<5.15.0-1027.32
5.15.0-1027.32
ubuntu/linux-gkeop<5.15.0-1013.17
5.15.0-1013.17
ubuntu/linux-hwe-5.19<5.19.0-32.33~22.04.1
5.19.0-32.33~22.04.1
ubuntu/linux-ibm<5.15.0-1023.26
5.15.0-1023.26
ubuntu/linux-intel-iot-realtime*
ubuntu/linux-intel-iotg<5.15.0-1023.28
5.15.0-1023.28
ubuntu/linux-kvm<5.15.0-1026.31
5.15.0-1026.31
ubuntu/linux-lowlatency<5.15.0-58.64
5.15.0-58.64
ubuntu/linux-lowlatency-hwe-6.2*
ubuntu/linux-nvidia<5.15.0-1017.17
5.15.0-1017.17
ubuntu/linux-oem-5.17<5.17.0-1025.26
5.17.0-1025.26
ubuntu/linux-oem-6.0<6.0.0-1012.12
6.0.0-1012.12
ubuntu/linux-oracle<5.15.0-1027.33
5.15.0-1027.33
ubuntu/linux-raspi<5.15.0-1023.25
5.15.0-1023.25
ubuntu/linux-realtime*
ubuntu/linux-riscv*
ubuntu/linux-bluefield<5.15.0-1014.16
5.15.0-1014.16
ubuntu/linux-realtime<5.15.0-1030.33
5.15.0-1030.33
ubuntu/linux-raspi-realtime*
ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 6.1
  2. 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 6.12.115-2Fixed in 7.2.12-1Fixed in 7.2.15-1
  3. Upgrade

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

    Fixed in 6.0.10-1
  4. Upgrade

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

    Fixed in 4.4.0-1115.121
  5. Upgrade

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

    Fixed in 4.15.0-1159.174~14.04.1
  6. Upgrade

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

    Fixed in 4.4.0-236.270~14.04.1
  7. Upgrade

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

    Fixed in 4.4.0-236.270
  8. Upgrade

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

    Fixed in 4.4.0-1153.168
  9. Upgrade

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

    Fixed in 4.15.0-1148.160~16.04.1
  10. Upgrade

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

    Fixed in 4.15.0-1159.174~16.04.1
  11. Upgrade

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

    Fixed in 4.15.0-1143.159~16.04.1
  12. Upgrade

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

    Fixed in 4.15.0-202.213~16.04.1
  13. Upgrade

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

    Fixed in 4.4.0-1116.126
  14. Upgrade

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

    Fixed in 4.15.0-1113.124~16.04.1
  15. Upgrade

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

    Fixed in 4.4.0-1085.92
  16. Upgrade

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

    Fixed in 4.15.0-202.213
  17. Upgrade

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

    Fixed in 4.15.0-1148.160
  18. Upgrade

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

    Fixed in 5.4.0-1094.102~18.04.1
  19. Upgrade

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

    Fixed in 4.15.0-1159.174
  20. Upgrade

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

    Fixed in 5.4.0-1101.107~18.04.1
  21. Upgrade

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

    Fixed in 4.15.0-1060.65
  22. Upgrade

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

    Fixed in 4.15.0-1143.159
  23. Upgrade

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

    Fixed in 5.4.0-1098.107~18.04.1
  24. Upgrade

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

    Fixed in 5.4.0-137.154~18.04.1
  25. Upgrade

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

    Fixed in 5.4.0-1042.47~18.04.1
  26. Upgrade

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

    Fixed in 4.15.0-1134.139
  27. Upgrade

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

    Fixed in 4.15.0-1113.124
  28. Upgrade

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

    Fixed in 5.4.0-1092.101~18.04.1
  29. Upgrade

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

    Fixed in 5.4.0-1079.90~18.04.1
  30. Upgrade

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

    Fixed in 4.15.0-1126.134
  31. Upgrade

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

    Fixed in 4.15.0-1144.154
  32. Upgrade

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

    Fixed in 4.15.0-2087.93
  33. Upgrade

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

    Fixed in 4.15.0-2068.74
  34. Upgrade

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

    Fixed in 4.15.0-1105.116
  35. Upgrade

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

    Fixed in 4.15.0-2052.57
  36. Upgrade

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

    Fixed in 5.4.0-137.154
  37. Upgrade

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

    Fixed in 5.4.0-1094.102
  38. Upgrade

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

    Fixed in 5.15.0-1028.32~20.04.1
  39. Upgrade

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

    Fixed in 5.4.0-1101.107
  40. Upgrade

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

    Fixed in 5.15.0-1031.38~20.04.1
  41. Upgrade

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

    Fixed in 5.4.0-1058.64
  42. Upgrade

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

    Fixed in 5.4.0-1098.107
  43. Upgrade

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

    Fixed in 5.15.0-1027.34~20.04.1
  44. Upgrade

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

    Fixed in 5.4.0-1094.101
  45. Upgrade

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

    Fixed in 5.15.0-1027.32~20.04.1
  46. Upgrade

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

    Fixed in 5.4.0-1062.66
  47. Upgrade

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

    Fixed in 5.15.0-1013.17~20.04.1
  48. Upgrade

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

    Fixed in 5.15.0-58.64~20.04.1
  49. Upgrade

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

    Fixed in 5.4.0-1042.47
  50. Upgrade

    Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-1023.28~20.04.1
  51. Upgrade

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

    Fixed in 5.4.0-1011.13
  52. Upgrade

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

    Fixed in 5.4.0-1084.90
  53. Upgrade

    Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.

    Fixed in 5.15.0-58.64~20.04.1
  54. Upgrade

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

    Fixed in 5.14.0-1056.63
  55. Upgrade

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

    Fixed in 5.4.0-1092.101
  56. Upgrade

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

    Fixed in 5.15.0-1027.33~20.04.1
  57. Upgrade

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

    Fixed in 5.4.0-1079.90
  58. Upgrade

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

    Fixed in 5.15.0-1028.32~20.04.1
  59. Upgrade

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

    Fixed in 5.4.0-1021.25
  60. Upgrade

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

    Fixed in 5.4.0-1094.102+fips1
  61. Upgrade

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

    Fixed in 5.4.0-1101.107+fips1
  62. Upgrade

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

    Fixed in 5.4.0-1070.79
  63. Upgrade

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

    Fixed in 5.4.0-1098.107+fips1
  64. Upgrade

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

    Fixed in 5.15.0-58.64
  65. Upgrade

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

    Fixed in 5.15.0-1028.32
  66. Upgrade

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

    Fixed in 5.15.0-1031.38
  67. Upgrade

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

    Fixed in 5.15.0-1031.38.1
  68. Upgrade

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

    Fixed in 5.15.0-1027.34
  69. Upgrade

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

    Fixed in 5.15.0-1027.32
  70. Upgrade

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

    Fixed in 5.15.0-1013.17
  71. Upgrade

    Upgrade ubuntu/linux-hwe-5.19 to a version that resolves this vulnerability.

    Fixed in 5.19.0-32.33~22.04.1
  72. Upgrade

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

    Fixed in 5.15.0-1023.26
  73. Upgrade

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

    Fixed in 5.15.0-1023.28
  74. Upgrade

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

    Fixed in 5.15.0-1026.31
  75. Upgrade

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

    Fixed in 5.15.0-58.64
  76. Upgrade

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

    Fixed in 5.15.0-1017.17
  77. Upgrade

    Upgrade ubuntu/linux-oem-5.17 to a version that resolves this vulnerability.

    Fixed in 5.17.0-1025.26
  78. Upgrade

    Upgrade ubuntu/linux-oem-6.0 to a version that resolves this vulnerability.

    Fixed in 6.0.0-1012.12
  79. Upgrade

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

    Fixed in 5.15.0-1027.33
  80. Upgrade

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

    Fixed in 5.15.0-1023.25
  81. Upgrade

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

    Fixed in 5.15.0-1014.16
  82. Upgrade

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

    Fixed in 5.15.0-1030.33
  83. Upgrade

    Upgrade Linux kernel to a version that resolves this vulnerability.

    Patch 711f8c3fb3db61897080468586b970c87c61d9e4

Event History

Nov 23, 2022
CVE Published
via MITRE·02:11 PM
Data Sourced
via MITRE·02:11 PM
DescriptionSeverityWeakness
Data Sourced
via OSV·03:15 PM
DescriptionSeverityAffected Software
Data Sourced
via NVD·03:15 PM
RemedyDescriptionSeverityWeaknessAffected Software
Data Sourced
via Red Hat·07:24 PM
DescriptionSeverityAffected Software

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-2022-42896?

CVE-2022-42896 is a high-severity vulnerability that could allow remote code execution due to use-after-free vulnerabilities in the Linux Kernel.

2

How do I fix CVE-2022-42896?

To fix CVE-2022-42896, upgrade to versions 6.1 or higher of the Linux Kernel or apply vendor-specific patches for affected software.

3

Which versions of the Linux Kernel are affected by CVE-2022-42896?

CVE-2022-42896 affects various versions of the Linux Kernel from 4.10 up to, but not including, 6.1.

4

Can CVE-2022-42896 be exploited remotely?

Yes, CVE-2022-42896 can be exploited by remote attackers within the local network to execute arbitrary code.

5

What components are impacted by CVE-2022-42896?

CVE-2022-42896 impacts the Bluetooth stack, specifically the l2cap_connect and l2cap_le_connect_req functions in the Linux Kernel.

Company

Resources

Contact

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