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6.6
CVE-2023-53321: Linux kernel could read invalid memory from short Wi‑Fi frames
CVE-2023-53321 · published 1 year ago
Summary
The Linux kernel’s Wi‑Fi simulation driver may mishandle unusually short wireless frames, potentially causing it to access memory it shouldn’t. This can lead to crashes or other unstable behavior. Updating the kernel to the latest version that includes the fix will resolve the issue.
What to do
- Update canonical linux-aws-5.4 to version 5.4.0-1116.126~18.04.1.
- Update canonical linux-azure-5.4 to version 5.4.0-1121.128~18.04.1.
- Update canonical linux-gcp-5.4 to version 5.4.0-1120.129~18.04.1.
- Update canonical linux-hwe-5.4 to version 5.4.0-169.187~18.04.1.
- Update canonical linux-ibm-5.4 to version 5.4.0-1063.68~18.04.1.
- Update canonical linux-oracle-5.4 to version 5.4.0-1115.124~18.04.1.
- Update canonical linux-raspi-5.4 to version 5.4.0-1100.112~18.04.1.
- Update canonical linux to version 5.4.0-169.187.
- Update canonical linux-aws to version 5.4.0-1116.126.
- Update canonical linux-aws-5.15 to version 5.15.0-1053.58~20.04.1.
- Update canonical linux-azure to version 5.4.0-1121.128.
- Update canonical linux-azure-5.15 to version 5.15.0-1056.64~20.04.1.
- Update canonical linux-bluefield to version 5.4.0-1076.82.
- Update canonical linux-gcp to version 5.4.0-1120.129.
- Update canonical linux-gcp-5.15 to version 5.15.0-1051.59~20.04.1.
- Update canonical linux-hwe-5.15 to version 5.15.0-94.104~20.04.1.
- Update canonical linux-ibm to version 5.4.0-1063.68.
- Update canonical linux-ibm-5.15 to version 5.15.0-1046.49~20.04.1.
- Update canonical linux-intel-iotg-5.15 to version 5.15.0-1048.54~20.04.1.
- Update canonical linux-iot to version 5.4.0-1028.29.
- Update canonical linux-kvm to version 5.4.0-1104.111.
- Update canonical linux-lowlatency-hwe-5.15 to version 5.15.0-94.104~20.04.1.
- Update canonical linux-nvidia-tegra-5.15 to version 5.15.0-1022.22~20.04.1.
- Update canonical linux-oracle to version 5.4.0-1115.124.
- Update canonical linux-oracle-5.15 to version 5.15.0-1051.57~20.04.1.
- Update canonical linux-raspi to version 5.4.0-1100.112.
- Update canonical linux-riscv-5.15 to version 5.15.0-1049.53~20.04.2.
- Update canonical linux-xilinx-zynqmp to version 5.4.0-1035.39.
- Update canonical linux-azure-fde-5.15 to version 5.15.0-1114.123~20.04.1.
- Update canonical linux-aws-fips to version 5.4.0-1116.126+fips1.
- Update canonical linux-azure-fips to version 5.4.0-1121.128+fips1.
- Update canonical linux-fips to version 5.4.0-1090.100.
- Update canonical linux-gcp-fips to version 5.4.0-1120.129+fips1.
- Update canonical linux to version 5.15.0-94.104.
- Update canonical linux-aws to version 5.15.0-1053.58.
- Update canonical linux-azure to version 5.15.0-1056.64.
- Update canonical linux-gcp to version 5.15.0-1051.59.
- Update canonical linux-gke to version 5.15.0-1050.55.
- Update canonical linux-gkeop to version 5.15.0-1036.42.
- Update canonical linux-ibm to version 5.15.0-1046.49.
- Update canonical linux-intel-iotg to version 5.15.0-1047.53.
- Update canonical linux-kvm to version 5.15.0-1050.55.
- Update canonical linux-lowlatency to version 5.15.0-94.104.
- Update canonical linux-nvidia to version 5.15.0-1044.44.
- Update canonical linux-nvidia-tegra to version 5.15.0-1022.22.
- Update canonical linux-nvidia-tegra-igx to version 5.15.0-1009.9.
- Update canonical linux-oracle to version 5.15.0-1051.57.
- Update canonical linux-raspi to version 5.15.0-1046.49.
- Update canonical linux-xilinx-zynqmp to version 5.15.0-1027.31.
- Update canonical linux-bluefield to version 5.15.0-1035.37.
- Update canonical linux-aws-fips to version 5.15.0-1053.58+fips1.
- Update canonical linux-fips to version 5.15.0-94.104+fips1.
- Update canonical linux-gcp-fips to version 5.15.0-1055.63+fips2.
- Update canonical linux-intel-iot-realtime to version 5.15.0-1046.48.
- Update canonical linux-realtime to version 5.15.0-1054.60.
- Update debian linux to version 6.1.55-1.
- Update debian linux to version 6.5.6-1.
- Update linux kernel to version 6.5.5.
- Update canonical linux-azure-fde to version 5.15.0-1056.64.1.
- Update linux linux to version 3beb97bed860d95b14ad23578ce8ddaea62023db or later.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| – | linux | linux_kernel |
< 5.4.257 >= 5.5, < 5.10.197 >= 5.11, < 5.15.133 >= 5.16, < 6.1.55 >= 6.2, < 6.5.5 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| – | linux | linux |
< 3beb97bed860d95b14ad23578ce8ddaea62023db 5.4 |
| Ubuntu:Pro:14.04:LTS | canonical | linux | All versions |
| Ubuntu:Pro:14.04:LTS | canonical | linux-aws | All versions |
| Ubuntu:Pro:14.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:Pro:14.04:LTS | canonical | linux-lts-xenial | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-aws-hwe | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-gcp | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-hwe | All versions |
| Ubuntu:16.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-kvm | All versions |
| Ubuntu:Pro:16.04:LTS | canonical | linux-oracle | All versions |
| Ubuntu:Pro:FIPS:16.04:LTS | canonical | linux-fips | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.3 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-aws-5.4 |
< 5.4.0-1116.126~18.04.1 Fix: upgrade to 5.4.0-1116.126~18.04.1
|
| Ubuntu:Pro:18.04:LTS | canonical | linux-azure-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-5.3 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-azure-5.4 |
< 5.4.0-1121.128~18.04.1 Fix: upgrade to 5.4.0-1121.128~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-azure-edge | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-gcp-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp-5.3 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-gcp-5.4 |
< 5.4.0-1120.129~18.04.1 Fix: upgrade to 5.4.0-1120.129~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-gke-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gkeop-5.4 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-hwe-5.4 |
< 5.4.0-169.187~18.04.1 Fix: upgrade to 5.4.0-169.187~18.04.1
|
| Ubuntu:Pro:18.04:LTS | canonical | linux-ibm-5.4 |
< 5.4.0-1063.68~18.04.1 Fix: upgrade to 5.4.0-1063.68~18.04.1
|
| Ubuntu:18.04:LTS | canonical | linux-oem | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.3 | All versions |
| Ubuntu:Pro:18.04:LTS | canonical | linux-oracle-5.4 |
< 5.4.0-1115.124~18.04.1 Fix: upgrade to 5.4.0-1115.124~18.04.1
|
| Ubuntu:Pro:18.04:LTS | canonical | linux-raspi-5.4 |
< 5.4.0-1100.112~18.04.1 Fix: upgrade to 5.4.0-1100.112~18.04.1
|
| Ubuntu:Pro:FIPS-updates:18.04:LTS | canonical | linux-aws-fips | All versions |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | canonical | linux-azure-fips | All versions |
| Ubuntu:Pro:FIPS-updates:18.04:LTS | canonical | linux-gcp-fips | All versions |
| Ubuntu:20.04:LTS | canonical | linux |
< 5.4.0-169.187 Fix: upgrade to 5.4.0-169.187
|
| Ubuntu:20.04:LTS | canonical | linux-aws |
< 5.4.0-1116.126 Fix: upgrade to 5.4.0-1116.126
|
| Ubuntu:20.04:LTS | canonical | linux-aws-5.15 |
< 5.15.0-1053.58~20.04.1 Fix: upgrade to 5.15.0-1053.58~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-azure |
< 5.4.0-1121.128 Fix: upgrade to 5.4.0-1121.128
|
| Ubuntu:20.04:LTS | canonical | linux-azure-5.15 |
< 5.15.0-1056.64~20.04.1 Fix: upgrade to 5.15.0-1056.64~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-bluefield |
< 5.4.0-1076.82 Fix: upgrade to 5.4.0-1076.82
|
| Ubuntu:20.04:LTS | canonical | linux-gcp |
< 5.4.0-1120.129 Fix: upgrade to 5.4.0-1120.129
|
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.15 |
< 5.15.0-1051.59~20.04.1 Fix: upgrade to 5.15.0-1051.59~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.15 |
< 5.15.0-94.104~20.04.1 Fix: upgrade to 5.15.0-94.104~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-ibm |
< 5.4.0-1063.68 Fix: upgrade to 5.4.0-1063.68
|
| Ubuntu:20.04:LTS | canonical | linux-ibm-5.15 |
< 5.15.0-1046.49~20.04.1 Fix: upgrade to 5.15.0-1046.49~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-intel-iotg-5.15 |
< 5.15.0-1048.54~20.04.1 Fix: upgrade to 5.15.0-1048.54~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-iot |
< 5.4.0-1028.29 Fix: upgrade to 5.4.0-1028.29
|
| Ubuntu:20.04:LTS | canonical | linux-kvm |
< 5.4.0-1104.111 Fix: upgrade to 5.4.0-1104.111
|
Showing 50 of 158. Show the rest
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:20.04:LTS | canonical | linux-lowlatency-hwe-5.15 |
< 5.15.0-94.104~20.04.1 Fix: upgrade to 5.15.0-94.104~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-nvidia-tegra-5.15 |
< 5.15.0-1022.22~20.04.1 Fix: upgrade to 5.15.0-1022.22~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-oracle |
< 5.4.0-1115.124 Fix: upgrade to 5.4.0-1115.124
|
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.15 |
< 5.15.0-1051.57~20.04.1 Fix: upgrade to 5.15.0-1051.57~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-raspi |
< 5.4.0-1100.112 Fix: upgrade to 5.4.0-1100.112
|
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.15 |
< 5.15.0-1049.53~20.04.2 Fix: upgrade to 5.15.0-1049.53~20.04.2
|
| Ubuntu:20.04:LTS | canonical | linux-xilinx-zynqmp |
< 5.4.0-1035.39 Fix: upgrade to 5.4.0-1035.39
|
| Ubuntu:20.04:LTS | canonical | linux-aws-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-fde | All versions |
| Ubuntu:Pro:20.04:LTS | canonical | linux-azure-fde-5.15 |
< 5.15.0-1114.123~20.04.1 Fix: upgrade to 5.15.0-1114.123~20.04.1
|
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-intel-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.10 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.14 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.6 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-raspi2 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.2 | All versions |
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-aws-fips |
< 5.4.0-1116.126+fips1 Fix: upgrade to 5.4.0-1116.126+fips1
|
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-azure-fips |
< 5.4.0-1121.128+fips1 Fix: upgrade to 5.4.0-1121.128+fips1
|
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-fips |
< 5.4.0-1090.100 Fix: upgrade to 5.4.0-1090.100
|
| Ubuntu:Pro:FIPS-updates:20.04:LTS | canonical | linux-gcp-fips |
< 5.4.0-1120.129+fips1 Fix: upgrade to 5.4.0-1120.129+fips1
|
| Ubuntu:22.04:LTS | canonical | linux |
< 5.15.0-94.104 Fix: upgrade to 5.15.0-94.104
|
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws |
< 5.15.0-1053.58 Fix: upgrade to 5.15.0-1053.58
|
| Ubuntu:22.04:LTS | canonical | linux-aws-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure |
< 5.15.0-1056.64 Fix: upgrade to 5.15.0-1056.64
|
| Ubuntu:22.04:LTS | canonical | linux-azure-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp |
< 5.15.0-1051.59 Fix: upgrade to 5.15.0-1051.59
|
| Ubuntu:22.04:LTS | canonical | linux-gcp-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gke |
< 5.15.0-1050.55 Fix: upgrade to 5.15.0-1050.55
|
| Ubuntu:22.04:LTS | canonical | linux-gkeop |
< 5.15.0-1036.42 Fix: upgrade to 5.15.0-1036.42
|
| Ubuntu:22.04:LTS | canonical | linux-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-ibm |
< 5.15.0-1046.49 Fix: upgrade to 5.15.0-1046.49
|
| Ubuntu:22.04:LTS | canonical | linux-intel-iot-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-intel-iotg |
< 5.15.0-1047.53 Fix: upgrade to 5.15.0-1047.53
|
| Ubuntu:22.04:LTS | canonical | linux-kvm |
< 5.15.0-1050.55 Fix: upgrade to 5.15.0-1050.55
|
| Ubuntu:22.04:LTS | canonical | linux-lowlatency |
< 5.15.0-94.104 Fix: upgrade to 5.15.0-94.104
|
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia |
< 5.15.0-1044.44 Fix: upgrade to 5.15.0-1044.44
|
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-tegra |
< 5.15.0-1022.22 Fix: upgrade to 5.15.0-1022.22
|
| Ubuntu:22.04:LTS | canonical | linux-nvidia-tegra-igx |
< 5.15.0-1009.9 Fix: upgrade to 5.15.0-1009.9
|
| Ubuntu:22.04:LTS | canonical | linux-oem-5.17 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.0 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.1 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle |
< 5.15.0-1051.57 Fix: upgrade to 5.15.0-1051.57
|
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-raspi |
< 5.15.0-1046.49 Fix: upgrade to 5.15.0-1046.49
|
| Ubuntu:22.04:LTS | canonical | linux-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-xilinx-zynqmp |
< 5.15.0-1027.31 Fix: upgrade to 5.15.0-1027.31
|
| Ubuntu:Nvidia-BlueField:22.04:LTS | canonical | linux-bluefield |
< 5.15.0-1035.37 Fix: upgrade to 5.15.0-1035.37
|
| Ubuntu:Pro:FIPS-updates:22.04:LTS | canonical | linux-aws-fips |
< 5.15.0-1053.58+fips1 Fix: upgrade to 5.15.0-1053.58+fips1
|
| Ubuntu:Pro:FIPS-updates:22.04:LTS | canonical | linux-fips |
< 5.15.0-94.104+fips1 Fix: upgrade to 5.15.0-94.104+fips1
|
| Ubuntu:Pro:FIPS-updates:22.04:LTS | canonical | linux-gcp-fips |
< 5.15.0-1055.63+fips2 Fix: upgrade to 5.15.0-1055.63+fips2
|
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-intel-iot-realtime |
< 5.15.0-1046.48 Fix: upgrade to 5.15.0-1046.48
|
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-realtime |
< 5.15.0-1054.60 Fix: upgrade to 5.15.0-1054.60
|
| Ubuntu:24.04:LTS | canonical | linux-azure-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-intel | All versions |
| Ubuntu:24.04:LTS | canonical | linux-lowlatency-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.8 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-raspi-realtime | All versions |
| Debian:12 | debian | linux |
< 6.1.55-1 Fix: upgrade to 6.1.55-1
|
| Debian:13 | debian | linux |
< 6.5.6-1 Fix: upgrade to 6.5.6-1
|
| Linux | linux | kernel |
>= 6.2.0, < 6.5.5 Fix: upgrade to 6.5.5
|
| Ubuntu:22.04:LTS | canonical | linux-azure-fde |
< 5.15.0-1056.64.1 Fix: upgrade to 5.15.0-1056.64.1
|
Original advisory text
wifi: mac80211_hwsim: drop short frames
In the Linux kernel, the following vulnerability has been resolved: wifi: mac80211_hwsim: drop short frames While technically some control frames like ACK are shorter and end after Address 1, such frames shouldn't be forwarded through wmediumd or similar userspace, so require the full 3-address header to avoid accessing invalid memory if shorter frames are passed in.
References
- https://git.kernel.org/stable/c/3beb97bed860d95b14ad23578ce8ddaea62023db Third Party Advisory
- https://git.kernel.org/stable/c/672205c6f2d11978fcd7f0f336bb2c708e28874b Third Party Advisory
- https://git.kernel.org/stable/c/89a41ed7f21476301659ebd25ccb48a60791c1a7 Third Party Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/53xxx/CVE-2023-53321... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2023-53321 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
- https://ubuntu.com/security/CVE-2023-53321 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2023-53321 Third Party Advisory
- https://git.kernel.org/linus/fba360a047d5eeeb9d4b7c3a9b1c8308980ce9a6 Third Party Advisory
- https://security-tracker.debian.org/tracker/CVE-2023-53321 Vendor Advisory
- https://git.kernel.org/stable/c/fba360a047d5eeeb9d4b7c3a9b1c8308980ce9a6 Third Party Advisory
- https://git.kernel.org/stable/c/c64ee9dd335832d5e2ab0a8fc83a34ad4c729799 Third Party Advisory
- https://git.kernel.org/stable/c/b9a175e3b250b0dc6e152988040aa5014e98e61e Third Party Advisory
Internet-facing
60 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit
- Gives an attacker partial control
Severity
6.6
Medium
Timeline
Published16 Sep 2025
Updated3 Nov 2026
First seen7 Mar 2026
Sources
CVE-2023-53321 · OSV
CVE-2023-53321 · NVD
CVE-2023-53321 · MITRE
UBUNTU-CVE-2023-53321 · OSV
DEBIAN-CVE-2023-53321 · OSV
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