UBUNTU-CVE-2024-46738: Use After Free

Q: What conditions are required to trigger this issue?

An attacker needs local access, low privileges, and the ability to create resources of different types that share the same VMCI context and resource-handle fields. Exploitation also has high attack complexity and requires an additional unspecified attack condition.

Q: Which Ubuntu kernel packages are identified as affected?

The listed packages are ubuntu/linux, ubuntu/linux-aws, ubuntu/linux-azure, ubuntu/linux-gcp, ubuntu/linux-fips, ubuntu/linux-aws-fips, ubuntu/linux-azure-fips, and ubuntu/linux-gcp-fips.

Q: What is the impact if the vulnerability is triggered?

A stale pointer to a freed VMCI resource can remain in the resource table, resulting in a use-after-free. The provided severity vector indicates high impact to confidentiality, integrity, and availability within the vulnerable component.

Published Sep 18, 2024

Updated

In the Linux kernel, the following vulnerability has been resolved: VMCI: Fix use-after-free when removing resource in vmciresourceremove() When removing a resource from vmciresourcetable in vmciresourceremove(), the search is performed using the resource handle by comparing context and resource fields. It is possible though to create two resources with different types but same handle (same context and resource fields). When trying to remove one of the resources, vmciresourceremove() may not remove the intended one, but the object will still be freed as in the case of the datagram type in vmcidatagramdestroyhandle(). vmciresourcetable will still hold a pointer to this freed resource leading to a use-after-free vulnerability. BUG: KASAN: use-after-free in vmcihandleisequal include/linux/vmwvmcidefs.h:142 [inline] BUG: KASAN: use-after-free in vmciresourceremove+0x3a1/0x410 drivers/misc/vmwvmci/vmciresource.c:147 Read of size 4 at addr ffff88801c16d800 by task syz-executor197/1592 Call Trace: <TASK> dumpstack lib/dumpstack.c:88 [inline] dumpstacklvl+0x82/0xa9 lib/dumpstack.c:106 printaddressdescription.constprop.0+0x21/0x366 mm/kasan/report.c:239 kasanreport.cold+0x7f/0x132 mm/kasan/report.c:425 kasanreport+0x38/0x51 mm/kasan/report.c:442 vmcihandleisequal include/linux/vmwvmcidefs.h:142 [inline] vmciresourceremove+0x3a1/0x410 drivers/misc/vmwvmci/vmciresource.c:147 vmciqpbrokerdetach+0x89a/0x11b9 drivers/misc/vmwvmci/vmciqueuepair.c:2182 ctxfreectx+0x473/0xbe1 drivers/misc/vmwvmci/vmcicontext.c:444 krefput include/linux/kref.h:65 [inline] vmcictxput drivers/misc/vmwvmci/vmcicontext.c:497 [inline] vmcictxdestroy+0x170/0x1d6 drivers/misc/vmwvmci/vmcicontext.c:195 vmcihostclose+0x125/0x1ac drivers/misc/vmwvmci/vmcihost.c:143 fput+0x261/0xa34 fs/filetable.c:282 taskworkrun+0xf0/0x194 kernel/taskwork.c:164 tracehooknotifyresume include/linux/tracehook.h:189 [inline] exittousermodeloop+0x184/0x189 kernel/entry/common.c:187 exittousermodeprepare+0x11b/0x123 kernel/entry/common.c:220 syscallexittousermodework kernel/entry/common.c:302 [inline] syscallexittousermode+0x18/0x42 kernel/entry/common.c:313 dosyscall64+0x41/0x85 arch/x86/entry/common.c:86 entrySYSCALL64afterhwframe+0x6e/0x0 This change ensures the type is also checked when removing the resource from vmciresourcetable in vmciresourceremove().

Affected Software

196 affected componentsFixes available

ubuntu/linux-aws<4.4.0-1138.144

4.4.0-1138.144

ubuntu/linux-azure<4.15.0-1183.198~14.04.1

4.15.0-1183.198~14.04.1

ubuntu/linux-lts-xenial<4.4.0-261.295~14.04.1

4.4.0-261.295~14.04.1

ubuntu/linux*

ubuntu/linux<4.4.0-261.295

4.4.0-261.295

ubuntu/linux-aws<4.4.0-1176.191

4.4.0-1176.191

ubuntu/linux-aws-hwe<4.15.0-1175.188~16.04.1

4.15.0-1175.188~16.04.1

ubuntu/linux-azure<4.15.0-1183.198~16.04.1

4.15.0-1183.198~16.04.1

ubuntu/linux-gcp<4.15.0-1168.185~16.04.1

4.15.0-1168.185~16.04.1

ubuntu/linux-hwe<4.15.0-231.243~16.04.1

4.15.0-231.243~16.04.1

ubuntu/linux-kvm<4.4.0-1139.149

4.4.0-1139.149

ubuntu/linux-oracle<4.15.0-1137.148~16.04.1

4.15.0-1137.148~16.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux-fips<4.4.0-1107.114

4.4.0-1107.114

ubuntu/linux-fips*

ubuntu/linux<4.15.0-231.243

4.15.0-231.243

ubuntu/linux-aws<4.15.0-1175.188

4.15.0-1175.188

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4<5.4.0-1135.145~18.04.1

5.4.0-1135.145~18.04.1

ubuntu/linux-azure*

ubuntu/linux-azure-4.15<4.15.0-1183.198

4.15.0-1183.198

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4<5.4.0-1140.147~18.04.1

5.4.0-1140.147~18.04.1

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-4.15<4.15.0-1168.185

4.15.0-1168.185

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4<5.4.0-1139.148~18.04.1

5.4.0-1139.148~18.04.1

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4<5.4.0-200.220~18.04.1

5.4.0-200.220~18.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4<5.4.0-1082.87~18.04.1

5.4.0-1082.87~18.04.1

ubuntu/linux-kvm<4.15.0-1158.163

4.15.0-1158.163

ubuntu/linux-oem*

ubuntu/linux-oracle<4.15.0-1137.148

4.15.0-1137.148

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4<5.4.0-1134.143~18.04.1

5.4.0-1134.143~18.04.1

ubuntu/linux-raspi-5.4<5.4.0-1119.131~18.04.1

5.4.0-1119.131~18.04.1

ubuntu/linux-aws-fips<4.15.0-2113.119

4.15.0-2113.119

ubuntu/linux-azure-fips<4.15.0-2092.98

4.15.0-2092.98

ubuntu/linux-fips<4.15.0-1129.140

4.15.0-1129.140

ubuntu/linux-gcp-fips<4.15.0-2076.81

4.15.0-2076.81

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.4.0-200.220

5.4.0-200.220

ubuntu/linux-aws<5.4.0-1135.145

5.4.0-1135.145

ubuntu/linux-aws-5.15<5.15.0-1072.78~20.04.1

5.15.0-1072.78~20.04.1

ubuntu/linux-azure<5.4.0-1140.147

5.4.0-1140.147

ubuntu/linux-azure-5.15<5.15.0-1078.87~20.04.1

5.15.0-1078.87~20.04.1

ubuntu/linux-bluefield<5.4.0-1095.102

5.4.0-1095.102

ubuntu/linux-gcp<5.4.0-1139.148

5.4.0-1139.148

ubuntu/linux-gcp-5.15<5.15.0-1071.79~20.04.1

5.15.0-1071.79~20.04.1

ubuntu/linux-gkeop<5.4.0-1102.106

5.4.0-1102.106

ubuntu/linux-gkeop-5.15<5.15.0-1055.62~20.04.1

5.15.0-1055.62~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-125.135~20.04.1

5.15.0-125.135~20.04.1

ubuntu/linux-ibm<5.4.0-1082.87

5.4.0-1082.87

ubuntu/linux-ibm-5.15<5.15.0-1065.68~20.04.1

5.15.0-1065.68~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1067.73~20.04.1

5.15.0-1067.73~20.04.1

ubuntu/linux-iot<5.4.0-1044.45

5.4.0-1044.45

ubuntu/linux-kvm<5.4.0-1123.131

5.4.0-1123.131

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-125.135~20.04.1

5.15.0-125.135~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1032.32~20.04.1

5.15.0-1032.32~20.04.1

ubuntu/linux-oracle<5.4.0-1134.143

5.4.0-1134.143

ubuntu/linux-oracle-5.15<5.15.0-1070.76~20.04.1

5.15.0-1070.76~20.04.1

ubuntu/linux-raspi<5.4.0-1119.131

5.4.0-1119.131

ubuntu/linux-riscv-5.15<5.15.0-1068.72~20.04.1

5.15.0-1068.72~20.04.1

ubuntu/linux-xilinx-zynqmp<5.4.0-1054.58

5.4.0-1054.58

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-azure-fde*

ubuntu/linux-gcp-5.11*

ubuntu/linux-gcp-5.13*

ubuntu/linux-gcp-5.8*

ubuntu/linux-gke*

ubuntu/linux-gke-5.15*

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<5.4.0-1135.145+fips1

5.4.0-1135.145+fips1

ubuntu/linux-azure-fips<5.4.0-1140.147+fips1

5.4.0-1140.147+fips1

ubuntu/linux-fips<5.4.0-1109.119

5.4.0-1109.119

ubuntu/linux-gcp-fips<5.4.0-1139.148+fips1

5.4.0-1139.148+fips1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-125.135

5.15.0-125.135

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1072.78

5.15.0-1072.78

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

ubuntu/linux-aws-6.8<6.8.0-1020.22~22.04.1

6.8.0-1020.22~22.04.1

ubuntu/linux-azure<5.15.0-1075.84

5.15.0-1075.84

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-6.8<6.8.0-1020.23~22.04.1

6.8.0-1020.23~22.04.1

ubuntu/linux-azure-fde<5.15.0-1076.85.1

5.15.0-1076.85.1

ubuntu/linux-azure-fde-5.19*

ubuntu/linux-azure-fde-6.2*

ubuntu/linux-gcp<5.15.0-1071.79

5.15.0-1071.79

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gcp-6.8<6.8.0-1019.21~22.04.1

6.8.0-1019.21~22.04.1

ubuntu/linux-gke<5.15.0-1069.75

5.15.0-1069.75

ubuntu/linux-gkeop<5.15.0-1055.62

5.15.0-1055.62

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-hwe-6.8<6.8.0-50.51~22.04.1

6.8.0-50.51~22.04.1

ubuntu/linux-ibm<5.15.0-1065.68

5.15.0-1065.68

ubuntu/linux-ibm-6.8<6.8.0-1017.17~22.04.1

6.8.0-1017.17~22.04.1

ubuntu/linux-intel-iotg<5.15.0-1067.73

5.15.0-1067.73

ubuntu/linux-kvm<5.15.0-1069.74

5.15.0-1069.74

ubuntu/linux-lowlatency<5.15.0-125.135

5.15.0-125.135

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-lowlatency-hwe-6.8<6.8.0-50.51.1~22.04.1

6.8.0-50.51.1~22.04.1

ubuntu/linux-nvidia<5.15.0-1067.68

5.15.0-1067.68

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-6.8<6.8.0-1019.21~22.04.1

6.8.0-1019.21~22.04.1

ubuntu/linux-nvidia-tegra<5.15.0-1032.32

5.15.0-1032.32

ubuntu/linux-nvidia-tegra-igx<5.15.0-1020.20

5.15.0-1020.20

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1070.76

5.15.0-1070.76

ubuntu/linux-oracle-6.5*

ubuntu/linux-oracle-6.8<6.8.0-1017.18~22.04.1

6.8.0-1017.18~22.04.1

ubuntu/linux-raspi<5.15.0-1065.68

5.15.0-1065.68

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-riscv-6.8<6.8.0-50.51.1~22.04.1

6.8.0-50.51.1~22.04.1

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1038.42

5.15.0-1038.42

ubuntu/linux-bluefield<5.15.0-1056.58

5.15.0-1056.58

ubuntu/linux-intel-iot-realtime<5.15.0-1066.68

5.15.0-1066.68

ubuntu/linux-realtime<5.15.0-1073.81

5.15.0-1073.81

ubuntu/linux-realtime-6.8<6.8.1-1013.14~22.04.1

6.8.1-1013.14~22.04.1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1072.78+fips1

5.15.0-1072.78+fips1

ubuntu/linux-azure-fips<5.15.0-1075.84+fips1

5.15.0-1075.84+fips1

ubuntu/linux-fips<5.15.0-125.135+fips1

5.15.0-125.135+fips1

ubuntu/linux-gcp-fips<5.15.0-1071.79+fips1

5.15.0-1071.79+fips1

ubuntu/linux<6.8.0-50.51

6.8.0-50.51

ubuntu/linux-aws<6.8.0-1020.22

6.8.0-1020.22

ubuntu/linux-azure<6.8.0-1020.23

6.8.0-1020.23

ubuntu/linux-gcp<6.8.0-1019.21

6.8.0-1019.21

ubuntu/linux-gke<6.8.0-1015.19

6.8.0-1015.19

ubuntu/linux-gkeop<6.8.0-1002.4

6.8.0-1002.4

ubuntu/linux-ibm<6.8.0-1017.17

6.8.0-1017.17

ubuntu/linux-lowlatency<6.8.0-50.51.1

6.8.0-50.51.1

ubuntu/linux-nvidia<6.8.0-1019.21

6.8.0-1019.21

ubuntu/linux-nvidia-lowlatency<6.8.0-1019.21.1

6.8.0-1019.21.1

ubuntu/linux-oem-6.8<6.8.0-1018.18

6.8.0-1018.18

ubuntu/linux-oracle<6.8.0-1017.18

6.8.0-1017.18

ubuntu/linux-raspi<6.8.0-1016.18

6.8.0-1016.18

ubuntu/linux-riscv<6.8.0-50.51.1

6.8.0-50.51.1

ubuntu/linux-xilinx<6.8.0-1017.18

6.8.0-1017.18

ubuntu/linux-raspi-realtime<6.8.0-2015.16

6.8.0-2015.16

ubuntu/linux-realtime<6.8.1-1013.14

6.8.1-1013.14

ubuntu/linux-fips<6.8.0-78.78+fips1

6.8.0-78.78+fips1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.4.0-1138.144
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1183.198~14.04.1
Upgrade
Upgrade ubuntu/linux-lts-xenial to a version that resolves this vulnerability.
Fixed in 4.4.0-261.295~14.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 4.4.0-261.295
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.4.0-1176.191
Upgrade
Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-1175.188~16.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1183.198~16.04.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 4.15.0-1168.185~16.04.1
Upgrade
Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-231.243~16.04.1
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 4.4.0-1139.149
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1137.148~16.04.1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 4.4.0-1107.114
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 4.15.0-231.243
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.15.0-1175.188
Upgrade
Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1135.145~18.04.1
Upgrade
Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1183.198
Upgrade
Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1140.147~18.04.1
Upgrade
Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1168.185
Upgrade
Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1139.148~18.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-200.220~18.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1082.87~18.04.1
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 4.15.0-1158.163
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1137.148
Upgrade
Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1134.143~18.04.1
Upgrade
Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1119.131~18.04.1
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2113.119
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2092.98
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-1129.140
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2076.81
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.4.0-200.220
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.4.0-1135.145
Upgrade
Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1072.78~20.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.4.0-1140.147
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1078.87~20.04.1
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.4.0-1095.102
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.4.0-1139.148
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1071.79~20.04.1
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.4.0-1102.106
Upgrade
Upgrade ubuntu/linux-gkeop-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1055.62~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-125.135~20.04.1
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.4.0-1082.87
Upgrade
Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1065.68~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1067.73~20.04.1
Upgrade
Upgrade ubuntu/linux-iot to a version that resolves this vulnerability.
Fixed in 5.4.0-1044.45
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.4.0-1123.131
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-125.135~20.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1032.32~20.04.1
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.4.0-1134.143
Upgrade
Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1070.76~20.04.1
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.4.0-1119.131
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Fixed in 5.15.0-1068.72~20.04.1
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Fixed in 5.4.0-1054.58
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Fixed in 5.4.0-1135.145+fips1
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Fixed in 5.4.0-1140.147+fips1
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Fixed in 5.4.0-1109.119
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Fixed in 5.4.0-1139.148+fips1
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Fixed in 5.15.0-125.135
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Fixed in 5.15.0-1072.78
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Fixed in 6.8.0-1020.22~22.04.1
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Fixed in 5.15.0-1075.84
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Fixed in 6.8.0-1020.23~22.04.1
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Fixed in 5.15.0-1076.85.1
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Fixed in 5.15.0-1071.79
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Fixed in 6.8.0-1019.21~22.04.1
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Fixed in 5.15.0-1069.75
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Fixed in 5.15.0-1055.62
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Fixed in 6.8.0-50.51~22.04.1
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Fixed in 5.15.0-1065.68
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Fixed in 6.8.0-1017.17~22.04.1
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Fixed in 5.15.0-1067.73
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Fixed in 5.15.0-1069.74
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Fixed in 5.15.0-125.135
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Fixed in 6.8.0-50.51.1~22.04.1
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Fixed in 5.15.0-1067.68
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Fixed in 6.8.0-1019.21~22.04.1
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Fixed in 5.15.0-1032.32
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Fixed in 5.15.0-1020.20
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Fixed in 5.15.0-1070.76
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Fixed in 6.8.0-1017.18~22.04.1
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Fixed in 5.15.0-1065.68
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Fixed in 6.8.0-50.51.1~22.04.1
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Fixed in 5.15.0-1038.42
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Fixed in 5.15.0-1056.58
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Fixed in 5.15.0-1066.68
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Fixed in 5.15.0-1073.81
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Fixed in 6.8.1-1013.14~22.04.1
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Fixed in 5.15.0-1072.78+fips1
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Fixed in 5.15.0-1075.84+fips1
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Fixed in 5.15.0-125.135+fips1
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Fixed in 5.15.0-1071.79+fips1
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Fixed in 6.8.0-50.51
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Fixed in 6.8.0-1020.22
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Fixed in 6.8.0-1020.23
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Fixed in 6.8.0-1019.21
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Fixed in 6.8.0-1015.19
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Fixed in 6.8.0-1002.4
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Fixed in 6.8.0-1017.17
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Fixed in 6.8.0-50.51.1
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Fixed in 6.8.0-1019.21
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Fixed in 6.8.0-1019.21.1
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Fixed in 6.8.0-1018.18
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Fixed in 6.8.0-1017.18
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Fixed in 6.8.0-1016.18
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Fixed in 6.8.0-50.51.1
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Fixed in 6.8.0-1017.18
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Fixed in 6.8.0-2015.16
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Fixed in 6.8.1-1013.14
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Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 6.8.0-78.78+fips1

Event History

Sep 18, 2024

CVE Published

via OSV·08:15 AM

Data Sourced

via OSV·08:15 AM

DescriptionSeverityAffected Software

Frequently Asked Questions

What conditions are required to trigger this issue?

An attacker needs local access, low privileges, and the ability to create resources of different types that share the same VMCI context and resource-handle fields. Exploitation also has high attack complexity and requires an additional unspecified attack condition.

Which Ubuntu kernel packages are identified as affected?

The listed packages are ubuntu/linux, ubuntu/linux-aws, ubuntu/linux-azure, ubuntu/linux-gcp, ubuntu/linux-fips, ubuntu/linux-aws-fips, ubuntu/linux-azure-fips, and ubuntu/linux-gcp-fips.

What is the impact if the vulnerability is triggered?

A stale pointer to a freed VMCI resource can remain in the resource table, resulting in a use-after-free. The provided severity vector indicates high impact to confidentiality, integrity, and availability within the vulnerable component.

UBUNTU-CVE-2024-46738: Use After Free

Affected Software

Remediation

Event History

Frequently Asked Questions

What conditions are required to trigger this issue?

Which Ubuntu kernel packages are identified as affected?

What is the impact if the vulnerability is triggered?

Company

Resources

Contact

Frequently Asked Questions

What conditions are required to trigger this issue?

Which Ubuntu kernel packages are identified as affected?

What is the impact if the vulnerability is triggered?