UBUNTU-CVE-2024-45016: Use After Free

Q: Which Ubuntu kernel packages are identified as affected?

The affected software list includes ubuntu/linux, ubuntu/linux-fips, ubuntu/linux-azure, ubuntu/linux-gcp, ubuntu/linux-oracle, ubuntu/linux-aws-fips, ubuntu/linux-azure-fips, and ubuntu/linux-gcp-fips.

Q: What configuration or traffic condition is needed to trigger the flaw?

The issue is in the netem queueing discipline and involves packet duplication followed by packet drops or diversion of the duplicated packet to another qdisc while the original packet is dropped. The provided data does not state that this occurs under a default configuration.

Q: What access does an attacker need?

The severity vector specifies local attack vector, low attack complexity, low privileges required, and no user interaction. Exploitation therefore requires local access with some level of privileges.

Q: What is the potential impact if exploitation succeeds?

The flaw can result in a use-after-free caused by a dangling pointer left in certain classful qdiscs, such as DRR. The supplied severity vector rates confidentiality, integrity, and availability impact as high.

Published Sep 11, 2024

Updated

In the Linux kernel, the following vulnerability has been resolved: netem: fix return value if duplicate enqueue fails There is a bug in netemenqueue() introduced by commit 5845f706388a ("net: netem: fix skb length BUGON in skbtosgvec") that can lead to a use-after-free. This commit made netemenqueue() always return NETXMITSUCCESS when a packet is duplicated, which can cause the parent qdisc's q.qlen to be mistakenly incremented. When this happens qlennotify() may be skipped on the parent during destruction, leaving a dangling pointer for some classful qdiscs like DRR. There are two ways for the bug happen: - If the duplicated packet is dropped by rootq->enqueue() and then the original packet is also dropped. - If rootq->enqueue() sends the duplicated packet to a different qdisc and the original packet is dropped. In both cases NETXMITSUCCESS is returned even though no packets are enqueued at the netem qdisc. The fix is to defer the enqueue of the duplicate packet until after the original packet has been guaranteed to return NETXMITSUCCESS.

Affected Software

186 affected componentsFixes available

ubuntu/linux-azure<4.15.0-1182.197~14.04.1

4.15.0-1182.197~14.04.1

ubuntu/linux-aws-hwe<4.15.0-1174.187~16.04.1

4.15.0-1174.187~16.04.1

ubuntu/linux-azure<4.15.0-1182.197~16.04.1

4.15.0-1182.197~16.04.1

ubuntu/linux-gcp<4.15.0-1167.184~16.04.2

4.15.0-1167.184~16.04.2

ubuntu/linux-hwe<4.15.0-230.242~16.04.1

4.15.0-230.242~16.04.1

ubuntu/linux-oracle<4.15.0-1136.147~16.04.1

4.15.0-1136.147~16.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux<4.15.0-230.242

4.15.0-230.242

ubuntu/linux-aws<4.15.0-1174.187

4.15.0-1174.187

ubuntu/linux-aws-5.0*

ubuntu/linux-aws-5.3*

ubuntu/linux-aws-5.4<5.4.0-1134.144~18.04.1

5.4.0-1134.144~18.04.1

ubuntu/linux-azure*

ubuntu/linux-azure-4.15<4.15.0-1182.197

4.15.0-1182.197

ubuntu/linux-azure-5.3*

ubuntu/linux-azure-5.4<5.4.0-1139.146~18.04.1

5.4.0-1139.146~18.04.1

ubuntu/linux-azure-edge*

ubuntu/linux-gcp*

ubuntu/linux-gcp-4.15<4.15.0-1167.184

4.15.0-1167.184

ubuntu/linux-gcp-5.3*

ubuntu/linux-gcp-5.4<5.4.0-1138.147~18.04.1

5.4.0-1138.147~18.04.1

ubuntu/linux-gke-4.15*

ubuntu/linux-gke-5.4*

ubuntu/linux-gkeop-5.4*

ubuntu/linux-hwe*

ubuntu/linux-hwe-5.4<5.4.0-198.218~18.04.1

5.4.0-198.218~18.04.1

ubuntu/linux-hwe-edge*

ubuntu/linux-ibm-5.4<5.4.0-1081.86~18.04.1

5.4.0-1081.86~18.04.1

ubuntu/linux-kvm<4.15.0-1157.162

4.15.0-1157.162

ubuntu/linux-oem*

ubuntu/linux-oracle<4.15.0-1136.147

4.15.0-1136.147

ubuntu/linux-oracle-5.0*

ubuntu/linux-oracle-5.3*

ubuntu/linux-oracle-5.4<5.4.0-1133.142~18.04.1

5.4.0-1133.142~18.04.1

ubuntu/linux-raspi-5.4<5.4.0-1118.130~18.04.1

5.4.0-1118.130~18.04.1

ubuntu/linux-aws-fips<4.15.0-2112.118

4.15.0-2112.118

ubuntu/linux-azure-fips<4.15.0-2091.97

4.15.0-2091.97

ubuntu/linux-fips<4.15.0-1128.139

4.15.0-1128.139

ubuntu/linux-gcp-fips<4.15.0-2075.80

4.15.0-2075.80

ubuntu/linux-fips*

ubuntu/linux<5.4.0-198.218

5.4.0-198.218

ubuntu/linux-aws<5.4.0-1134.144

5.4.0-1134.144

ubuntu/linux-aws-5.15<5.15.0-1071.77~20.04.1

5.15.0-1071.77~20.04.1

ubuntu/linux-azure<5.4.0-1139.146

5.4.0-1139.146

ubuntu/linux-azure-5.15<5.15.0-1074.83~20.04.1

5.15.0-1074.83~20.04.1

ubuntu/linux-bluefield<5.4.0-1094.101

5.4.0-1094.101

ubuntu/linux-gcp<5.4.0-1138.147

5.4.0-1138.147

ubuntu/linux-gcp-5.15<5.15.0-1070.78~20.04.1

5.15.0-1070.78~20.04.1

ubuntu/linux-gkeop<5.4.0-1101.105

5.4.0-1101.105

ubuntu/linux-gkeop-5.15<5.15.0-1054.61~20.04.1

5.15.0-1054.61~20.04.1

ubuntu/linux-hwe-5.15<5.15.0-124.134~20.04.1

5.15.0-124.134~20.04.1

ubuntu/linux-ibm<5.4.0-1081.86

5.4.0-1081.86

ubuntu/linux-ibm-5.15<5.15.0-1064.67~20.04.1

5.15.0-1064.67~20.04.1

ubuntu/linux-intel-iotg-5.15<5.15.0-1066.72~20.04.1

5.15.0-1066.72~20.04.1

ubuntu/linux-iot<5.4.0-1044.45

5.4.0-1044.45

ubuntu/linux-kvm<5.4.0-1122.130

5.4.0-1122.130

ubuntu/linux-lowlatency-hwe-5.15<5.15.0-124.134~20.04.1

5.15.0-124.134~20.04.1

ubuntu/linux-nvidia-tegra-5.15<5.15.0-1030.30~20.04.1

5.15.0-1030.30~20.04.1

ubuntu/linux-oracle<5.4.0-1133.142

5.4.0-1133.142

ubuntu/linux-oracle-5.15<5.15.0-1069.75~20.04.1

5.15.0-1069.75~20.04.1

ubuntu/linux-raspi<5.4.0-1118.130

5.4.0-1118.130

ubuntu/linux-riscv-5.15<5.15.0-1067.71~20.04.1

5.15.0-1067.71~20.04.1

ubuntu/linux-xilinx-zynqmp<5.4.0-1053.57

5.4.0-1053.57

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<5.4.0-1134.144+fips1

5.4.0-1134.144+fips1

ubuntu/linux-azure-fips<5.4.0-1139.146+fips1

5.4.0-1139.146+fips1

ubuntu/linux-fips<5.4.0-1108.118

5.4.0-1108.118

ubuntu/linux-gcp-fips<5.4.0-1138.147+fips1

5.4.0-1138.147+fips1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux<5.15.0-124.134

5.15.0-124.134

ubuntu/linux-allwinner-5.19*

ubuntu/linux-aws<5.15.0-1071.77

5.15.0-1071.77

ubuntu/linux-aws-5.19*

ubuntu/linux-aws-6.2*

ubuntu/linux-aws-6.5*

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

6.8.0-1017.18~22.04.1

ubuntu/linux-azure<5.15.0-1074.83

5.15.0-1074.83

ubuntu/linux-azure-5.19*

ubuntu/linux-azure-6.2*

ubuntu/linux-azure-6.5*

ubuntu/linux-azure-6.8<6.8.0-1017.20~22.04.1

6.8.0-1017.20~22.04.1

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<5.15.0-1070.78

5.15.0-1070.78

ubuntu/linux-gcp-5.19*

ubuntu/linux-gcp-6.2*

ubuntu/linux-gcp-6.5*

ubuntu/linux-gcp-6.8<6.8.0-1016.18~22.04.1

6.8.0-1016.18~22.04.1

ubuntu/linux-gke<5.15.0-1068.74

5.15.0-1068.74

ubuntu/linux-gkeop<5.15.0-1054.61

5.15.0-1054.61

ubuntu/linux-hwe-5.19*

ubuntu/linux-hwe-6.2*

ubuntu/linux-hwe-6.5*

ubuntu/linux-hwe-6.8<6.8.0-47.47~22.04.1

6.8.0-47.47~22.04.1

ubuntu/linux-ibm<5.15.0-1064.67

5.15.0-1064.67

ubuntu/linux-ibm-6.8<6.8.0-1014.14~22.04.1

6.8.0-1014.14~22.04.1

ubuntu/linux-intel-iotg<5.15.0-1066.72

5.15.0-1066.72

ubuntu/linux-kvm<5.15.0-1068.73

5.15.0-1068.73

ubuntu/linux-lowlatency<5.15.0-124.134

5.15.0-124.134

ubuntu/linux-lowlatency-hwe-5.19*

ubuntu/linux-lowlatency-hwe-6.2*

ubuntu/linux-lowlatency-hwe-6.5*

ubuntu/linux-lowlatency-hwe-6.8<6.8.0-47.47.1~22.04.1

6.8.0-47.47.1~22.04.1

ubuntu/linux-nvidia<5.15.0-1066.67

5.15.0-1066.67

ubuntu/linux-nvidia-6.2*

ubuntu/linux-nvidia-6.5*

ubuntu/linux-nvidia-6.8<6.8.0-1015.16~22.04.1

6.8.0-1015.16~22.04.1

ubuntu/linux-nvidia-tegra<5.15.0-1030.30

5.15.0-1030.30

ubuntu/linux-nvidia-tegra-igx<5.15.0-1019.19

5.15.0-1019.19

ubuntu/linux-oem-5.17*

ubuntu/linux-oem-6.0*

ubuntu/linux-oem-6.1*

ubuntu/linux-oem-6.5*

ubuntu/linux-oracle<5.15.0-1069.75

5.15.0-1069.75

ubuntu/linux-oracle-6.5*

ubuntu/linux-oracle-6.8<6.8.0-1014.14~22.04.1

6.8.0-1014.14~22.04.1

ubuntu/linux-raspi<5.15.0-1064.67

5.15.0-1064.67

ubuntu/linux-realtime*

ubuntu/linux-riscv*

ubuntu/linux-riscv-5.19*

ubuntu/linux-riscv-6.5*

ubuntu/linux-riscv-6.8<6.8.0-47.47.1~22.04.1

6.8.0-47.47.1~22.04.1

ubuntu/linux-starfive-5.19*

ubuntu/linux-starfive-6.2*

ubuntu/linux-starfive-6.5*

ubuntu/linux-xilinx-zynqmp<5.15.0-1037.41

5.15.0-1037.41

ubuntu/linux-bluefield<5.15.0-1054.56

5.15.0-1054.56

ubuntu/linux-intel-iot-realtime<5.15.0-1064.66

5.15.0-1064.66

ubuntu/linux-realtime<5.15.0-1072.80

5.15.0-1072.80

ubuntu/linux-realtime-6.8<6.8.1-1010.10~22.04.1

6.8.1-1010.10~22.04.1

ubuntu/linux-aws-fips*

ubuntu/linux-azure-fips*

ubuntu/linux-fips*

ubuntu/linux-gcp-fips*

ubuntu/linux-aws-fips<5.15.0-1071.77+fips1

5.15.0-1071.77+fips1

ubuntu/linux-azure-fips<5.15.0-1074.83+fips1

5.15.0-1074.83+fips1

ubuntu/linux-fips<5.15.0-124.134+fips1

5.15.0-124.134+fips1

ubuntu/linux-gcp-fips<5.15.0-1070.78+fips1

5.15.0-1070.78+fips1

ubuntu/linux<6.8.0-47.47

6.8.0-47.47

ubuntu/linux-aws<6.8.0-1017.18

6.8.0-1017.18

ubuntu/linux-azure<6.8.0-1016.18

6.8.0-1016.18

ubuntu/linux-gcp<6.8.0-1016.18

6.8.0-1016.18

ubuntu/linux-gke<6.8.0-1012.15

6.8.0-1012.15

ubuntu/linux-gkeop<6.8.0-1002.4

6.8.0-1002.4

ubuntu/linux-ibm<6.8.0-1014.14

6.8.0-1014.14

ubuntu/linux-lowlatency<6.8.0-47.47.1

6.8.0-47.47.1

ubuntu/linux-nvidia<6.8.0-1015.16

6.8.0-1015.16

ubuntu/linux-nvidia-lowlatency<6.8.0-1015.16.1

6.8.0-1015.16.1

ubuntu/linux-oem-6.8<6.8.0-1014.14

6.8.0-1014.14

ubuntu/linux-oracle<6.8.0-1014.14

6.8.0-1014.14

ubuntu/linux-raspi<6.8.0-1013.14

6.8.0-1013.14

ubuntu/linux-riscv<6.8.0-47.47.1

6.8.0-47.47.1

ubuntu/linux-xilinx<6.8.0-1009.10

6.8.0-1009.10

ubuntu/linux-raspi-realtime<6.8.0-2012.12

6.8.0-2012.12

ubuntu/linux-realtime<6.8.1-1010.10

6.8.1-1010.10

ubuntu/linux-fips<6.8.0-78.78+fips1

6.8.0-78.78+fips1

ubuntu/linux-vmware*

Remediation

Recommended actions to resolve this vulnerability, in priority order.

Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.197~14.04.1
Upgrade
Upgrade ubuntu/linux-aws-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-1174.187~16.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.197~16.04.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 4.15.0-1167.184~16.04.2
Upgrade
Upgrade ubuntu/linux-hwe to a version that resolves this vulnerability.
Fixed in 4.15.0-230.242~16.04.1
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1136.147~16.04.1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 4.15.0-230.242
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 4.15.0-1174.187
Upgrade
Upgrade ubuntu/linux-aws-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1134.144~18.04.1
Upgrade
Upgrade ubuntu/linux-azure-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1182.197
Upgrade
Upgrade ubuntu/linux-azure-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1139.146~18.04.1
Upgrade
Upgrade ubuntu/linux-gcp-4.15 to a version that resolves this vulnerability.
Fixed in 4.15.0-1167.184
Upgrade
Upgrade ubuntu/linux-gcp-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1138.147~18.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-198.218~18.04.1
Upgrade
Upgrade ubuntu/linux-ibm-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1081.86~18.04.1
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 4.15.0-1157.162
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 4.15.0-1136.147
Upgrade
Upgrade ubuntu/linux-oracle-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1133.142~18.04.1
Upgrade
Upgrade ubuntu/linux-raspi-5.4 to a version that resolves this vulnerability.
Fixed in 5.4.0-1118.130~18.04.1
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2112.118
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2091.97
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-1128.139
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 4.15.0-2075.80
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.4.0-198.218
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.4.0-1134.144
Upgrade
Upgrade ubuntu/linux-aws-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1071.77~20.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.4.0-1139.146
Upgrade
Upgrade ubuntu/linux-azure-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1074.83~20.04.1
Upgrade
Upgrade ubuntu/linux-bluefield to a version that resolves this vulnerability.
Fixed in 5.4.0-1094.101
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.4.0-1138.147
Upgrade
Upgrade ubuntu/linux-gcp-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1070.78~20.04.1
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.4.0-1101.105
Upgrade
Upgrade ubuntu/linux-gkeop-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1054.61~20.04.1
Upgrade
Upgrade ubuntu/linux-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-124.134~20.04.1
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.4.0-1081.86
Upgrade
Upgrade ubuntu/linux-ibm-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1064.67~20.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.72~20.04.1
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 5.4.0-1122.130
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-124.134~20.04.1
Upgrade
Upgrade ubuntu/linux-nvidia-tegra-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1030.30~20.04.1
Upgrade
Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.4.0-1133.142
Upgrade
Upgrade ubuntu/linux-oracle-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1069.75~20.04.1
Upgrade
Upgrade ubuntu/linux-raspi to a version that resolves this vulnerability.
Fixed in 5.4.0-1118.130
Upgrade
Upgrade ubuntu/linux-riscv-5.15 to a version that resolves this vulnerability.
Fixed in 5.15.0-1067.71~20.04.1
Upgrade
Upgrade ubuntu/linux-xilinx-zynqmp to a version that resolves this vulnerability.
Fixed in 5.4.0-1053.57
Upgrade
Upgrade ubuntu/linux-aws-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1134.144+fips1
Upgrade
Upgrade ubuntu/linux-azure-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1139.146+fips1
Upgrade
Upgrade ubuntu/linux-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1108.118
Upgrade
Upgrade ubuntu/linux-gcp-fips to a version that resolves this vulnerability.
Fixed in 5.4.0-1138.147+fips1
Upgrade
Upgrade ubuntu/linux to a version that resolves this vulnerability.
Fixed in 5.15.0-124.134
Upgrade
Upgrade ubuntu/linux-aws to a version that resolves this vulnerability.
Fixed in 5.15.0-1071.77
Upgrade
Upgrade ubuntu/linux-aws-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1017.18~22.04.1
Upgrade
Upgrade ubuntu/linux-azure to a version that resolves this vulnerability.
Fixed in 5.15.0-1074.83
Upgrade
Upgrade ubuntu/linux-azure-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1017.20~22.04.1
Upgrade
Upgrade ubuntu/linux-azure-fde to a version that resolves this vulnerability.
Fixed in 5.15.0-1076.85.1
Upgrade
Upgrade ubuntu/linux-gcp to a version that resolves this vulnerability.
Fixed in 5.15.0-1070.78
Upgrade
Upgrade ubuntu/linux-gcp-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1016.18~22.04.1
Upgrade
Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 5.15.0-1068.74
Upgrade
Upgrade ubuntu/linux-gkeop to a version that resolves this vulnerability.
Fixed in 5.15.0-1054.61
Upgrade
Upgrade ubuntu/linux-hwe-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-47.47~22.04.1
Upgrade
Upgrade ubuntu/linux-ibm to a version that resolves this vulnerability.
Fixed in 5.15.0-1064.67
Upgrade
Upgrade ubuntu/linux-ibm-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-1014.14~22.04.1
Upgrade
Upgrade ubuntu/linux-intel-iotg to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.72
Upgrade
Upgrade ubuntu/linux-kvm to a version that resolves this vulnerability.
Fixed in 5.15.0-1068.73
Upgrade
Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 5.15.0-124.134
Upgrade
Upgrade ubuntu/linux-lowlatency-hwe-6.8 to a version that resolves this vulnerability.
Fixed in 6.8.0-47.47.1~22.04.1
Upgrade
Upgrade ubuntu/linux-nvidia to a version that resolves this vulnerability.
Fixed in 5.15.0-1066.67
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Fixed in 6.8.0-1015.16~22.04.1
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Fixed in 5.15.0-1030.30
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Upgrade ubuntu/linux-nvidia-tegra-igx to a version that resolves this vulnerability.
Fixed in 5.15.0-1019.19
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Upgrade ubuntu/linux-oracle to a version that resolves this vulnerability.
Fixed in 5.15.0-1069.75
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Fixed in 6.8.0-1014.14~22.04.1
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Fixed in 5.15.0-1064.67
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Fixed in 6.8.0-47.47.1~22.04.1
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Fixed in 5.15.0-1037.41
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Fixed in 5.15.0-1054.56
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Fixed in 5.15.0-1064.66
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Fixed in 5.15.0-1072.80
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Fixed in 6.8.1-1010.10~22.04.1
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Fixed in 5.15.0-1071.77+fips1
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Fixed in 5.15.0-1074.83+fips1
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Fixed in 5.15.0-124.134+fips1
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Fixed in 5.15.0-1070.78+fips1
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Fixed in 6.8.0-47.47
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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 6.8.0-1016.18
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Upgrade ubuntu/linux-gke to a version that resolves this vulnerability.
Fixed in 6.8.0-1012.15
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Fixed in 6.8.0-1002.4
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Fixed in 6.8.0-1014.14
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Upgrade ubuntu/linux-lowlatency to a version that resolves this vulnerability.
Fixed in 6.8.0-47.47.1
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Fixed in 6.8.0-1015.16
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Fixed in 6.8.0-1015.16.1
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Fixed in 6.8.0-1014.14
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Fixed in 6.8.0-1014.14
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Fixed in 6.8.0-1013.14
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Fixed in 6.8.0-47.47.1
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Fixed in 6.8.0-1009.10
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Fixed in 6.8.0-2012.12
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Fixed in 6.8.1-1010.10
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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 11, 2024

CVE Published

via OSV·04:15 PM

Data Sourced

via OSV·04:15 PM

DescriptionSeverityAffected Software

Frequently Asked Questions

Which Ubuntu kernel packages are identified as affected?

The affected software list includes ubuntu/linux, ubuntu/linux-fips, ubuntu/linux-azure, ubuntu/linux-gcp, ubuntu/linux-oracle, ubuntu/linux-aws-fips, ubuntu/linux-azure-fips, and ubuntu/linux-gcp-fips.

What configuration or traffic condition is needed to trigger the flaw?

The issue is in the netem queueing discipline and involves packet duplication followed by packet drops or diversion of the duplicated packet to another qdisc while the original packet is dropped. The provided data does not state that this occurs under a default configuration.

What access does an attacker need?

The severity vector specifies local attack vector, low attack complexity, low privileges required, and no user interaction. Exploitation therefore requires local access with some level of privileges.

What is the potential impact if exploitation succeeds?

The flaw can result in a use-after-free caused by a dangling pointer left in certain classful qdiscs, such as DRR. The supplied severity vector rates confidentiality, integrity, and availability impact as high.

UBUNTU-CVE-2024-45016: Use After Free

Affected Software

Remediation

Event History

Frequently Asked Questions

Which Ubuntu kernel packages are identified as affected?

What configuration or traffic condition is needed to trigger the flaw?

What access does an attacker need?

What is the potential impact if exploitation succeeds?

Company

Resources

Contact

Frequently Asked Questions

Which Ubuntu kernel packages are identified as affected?

What configuration or traffic condition is needed to trigger the flaw?

What access does an attacker need?

What is the potential impact if exploitation succeeds?