CVE-2023-51781: Use After Free
First published: Mon Dec 25 2023(Updated: )
An issue was discovered in the Linux kernel before 6.6.8. atalk_ioctl in net/appletalk/ddp.c has a use-after-free because of an atalk_recvmsg race condition.
Credit: cve@mitre.org cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Linux kernel | >2.6.12<6.6.8 | |
| Linux Linux kernel | =2.6.12-rc2 | |
| Linux Linux kernel | =2.6.12-rc3 | |
| Linux Linux kernel | =2.6.12-rc4 | |
| Linux Linux kernel | =2.6.12-rc5 | |
| Linux Linux kernel | =2.6.12-rc6 | |
| Linux Linux kernel | =6.7-rc1 | |
| Linux Linux kernel | =6.7-rc2 | |
| Linux Linux kernel | =6.7-rc3 | |
| Linux Linux kernel | =6.7-rc4 | |
| Linux Linux kernel | =6.7-rc5 | |
| Debian Debian Linux | =10.0 | |
| ubuntu/linux | <4.15.0-223.235 | 4.15.0-223.235 |
| ubuntu/linux | <5.4.0-172.190 | 5.4.0-172.190 |
| ubuntu/linux | <5.15.0-97.107 | 5.15.0-97.107 |
| ubuntu/linux | <6.5.0-21.21 | 6.5.0-21.21 |
| ubuntu/linux | <6.7~ | 6.7~ |
| ubuntu/linux | <4.4.0-252.286 | 4.4.0-252.286 |
| ubuntu/linux-aws | <4.15.0-1166.179 | 4.15.0-1166.179 |
| ubuntu/linux-aws | <5.4.0-1119.129 | 5.4.0-1119.129 |
| ubuntu/linux-aws | <5.15.0-1055.60 | 5.15.0-1055.60 |
| ubuntu/linux-aws | <6.5.0-1014.14 | 6.5.0-1014.14 |
| ubuntu/linux-aws | <4.4.0-1129.135 | 4.4.0-1129.135 |
| ubuntu/linux-aws | <6.7~ | 6.7~ |
| ubuntu/linux-aws | <4.4.0-1167.182 | 4.4.0-1167.182 |
| ubuntu/linux-aws-5.15 | <5.15.0-1055.60~20.04.1 | 5.15.0-1055.60~20.04.1 |
| ubuntu/linux-aws-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-aws-5.4 | <5.4.0-1119.129~18.04.1 | 5.4.0-1119.129~18.04.1 |
| ubuntu/linux-aws-5.4 | <6.7~ | 6.7~ |
| ubuntu/linux-aws-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-aws-fips | <6.7~ | 6.7~ |
| ubuntu/linux-aws-hwe | <6.7~ | 6.7~ |
| ubuntu/linux-aws-hwe | <4.15.0-1166.179~16.04.1 | 4.15.0-1166.179~16.04.1 |
| ubuntu/linux-azure | <5.4.0-1124.131 | 5.4.0-1124.131 |
| ubuntu/linux-azure | <5.15.0-1057.65 | 5.15.0-1057.65 |
| ubuntu/linux-azure | <6.5.0-1015.15 | 6.5.0-1015.15 |
| ubuntu/linux-azure | <4.15.0-1175.190~14.04.1 | 4.15.0-1175.190~14.04.1 |
| ubuntu/linux-azure | <6.7~ | 6.7~ |
| ubuntu/linux-azure | <4.15.0-1175.190~16.04.1 | 4.15.0-1175.190~16.04.1 |
| ubuntu/linux-azure-4.15 | <4.15.0-1175.190 | 4.15.0-1175.190 |
| ubuntu/linux-azure-4.15 | <6.7~ | 6.7~ |
| ubuntu/linux-azure-5.15 | <5.15.0-1057.65~20.04.1 | 5.15.0-1057.65~20.04.1 |
| ubuntu/linux-azure-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-azure-5.4 | <5.4.0-1124.131~18.04.1 | 5.4.0-1124.131~18.04.1 |
| ubuntu/linux-azure-5.4 | <6.7~ | 6.7~ |
| ubuntu/linux-azure-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-azure-fde | <5.15.0-1057.65.1 | 5.15.0-1057.65.1 |
| ubuntu/linux-azure-fde | <6.7~ | 6.7~ |
| ubuntu/linux-azure-fde-5.15 | <5.15.0-1057.65~20.04.1.1 | 5.15.0-1057.65~20.04.1.1 |
| ubuntu/linux-azure-fde-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-azure-fips | <6.7~ | 6.7~ |
| ubuntu/linux-bluefield | <5.4.0-1079.85 | 5.4.0-1079.85 |
| ubuntu/linux-bluefield | <6.7~ | 6.7~ |
| ubuntu/linux-fips | <6.7~ | 6.7~ |
| ubuntu/linux-gcp | <5.4.0-1123.132 | 5.4.0-1123.132 |
| ubuntu/linux-gcp | <5.15.0-1052.60 | 5.15.0-1052.60 |
| ubuntu/linux-gcp | <6.5.0-1014.14 | 6.5.0-1014.14 |
| ubuntu/linux-gcp | <6.7~ | 6.7~ |
| ubuntu/linux-gcp | <4.15.0-1160.177~16.04.1 | 4.15.0-1160.177~16.04.1 |
| ubuntu/linux-gcp-4.15 | <4.15.0-1160.177 | 4.15.0-1160.177 |
| ubuntu/linux-gcp-4.15 | <6.7~ | 6.7~ |
| ubuntu/linux-gcp-5.15 | <5.15.0-1052.60~20.04.1 | 5.15.0-1052.60~20.04.1 |
| ubuntu/linux-gcp-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-gcp-5.4 | <5.4.0-1123.132~18.04.1 | 5.4.0-1123.132~18.04.1 |
| ubuntu/linux-gcp-5.4 | <6.7~ | 6.7~ |
| ubuntu/linux-gcp-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-gcp-fips | <6.7~ | 6.7~ |
| ubuntu/linux-gke | <5.15.0-1051.56 | 5.15.0-1051.56 |
| ubuntu/linux-gke | <6.7~ | 6.7~ |
| ubuntu/linux-gkeop | <5.4.0-1086.90 | 5.4.0-1086.90 |
| ubuntu/linux-gkeop | <5.15.0-1037.43 | 5.15.0-1037.43 |
| ubuntu/linux-gkeop | <6.7~ | 6.7~ |
| ubuntu/linux-gkeop-5.15 | <5.15.0-1037.43~20.04.1 | 5.15.0-1037.43~20.04.1 |
| ubuntu/linux-gkeop-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-hwe | <6.7~ | 6.7~ |
| ubuntu/linux-hwe | <4.15.0-223.235~16.04.1 | 4.15.0-223.235~16.04.1 |
| ubuntu/linux-hwe-5.15 | <5.15.0-97.107~20.04.1 | 5.15.0-97.107~20.04.1 |
| ubuntu/linux-hwe-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-hwe-5.4 | <5.4.0-172.190~18.04.1 | 5.4.0-172.190~18.04.1 |
| ubuntu/linux-hwe-5.4 | <6.7~ | 6.7~ |
| ubuntu/linux-hwe-6.5 | <6.5.0-21.21~22.04.1 | 6.5.0-21.21~22.04.1 |
| ubuntu/linux-hwe-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-ibm | <5.4.0-1066.71 | 5.4.0-1066.71 |
| ubuntu/linux-ibm | <5.15.0-1047.50 | 5.15.0-1047.50 |
| ubuntu/linux-ibm | <6.7~ | 6.7~ |
| ubuntu/linux-ibm-5.15 | <5.15.0-1047.50~20.04.1 | 5.15.0-1047.50~20.04.1 |
| ubuntu/linux-ibm-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-ibm-5.4 | <5.4.0-1066.71~18.04.1 | 5.4.0-1066.71~18.04.1 |
| ubuntu/linux-ibm-5.4 | <6.7~ | 6.7~ |
| ubuntu/linux-intel | <6.7~ | 6.7~ |
| ubuntu/linux-intel-iot-realtime | <6.7~ | 6.7~ |
| ubuntu/linux-intel-iotg | <5.15.0-1049.55 | 5.15.0-1049.55 |
| ubuntu/linux-intel-iotg | <6.7~ | 6.7~ |
| ubuntu/linux-intel-iotg-5.15 | <5.15.0-1049.55~20.04.1 | 5.15.0-1049.55~20.04.1 |
| ubuntu/linux-intel-iotg-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-iot | <5.4.0-1031.32 | 5.4.0-1031.32 |
| ubuntu/linux-iot | <6.7~ | 6.7~ |
| ubuntu/linux-kvm | <4.15.0-1150.155 | 4.15.0-1150.155 |
| ubuntu/linux-kvm | <5.4.0-1107.114 | 5.4.0-1107.114 |
| ubuntu/linux-kvm | <5.15.0-1051.56 | 5.15.0-1051.56 |
| ubuntu/linux-kvm | <6.7~ | 6.7~ |
| ubuntu/linux-kvm | <4.4.0-1130.140 | 4.4.0-1130.140 |
| ubuntu/linux-laptop | <6.5.0-1010.13 | 6.5.0-1010.13 |
| ubuntu/linux-laptop | <6.7~ | 6.7~ |
| ubuntu/linux-lowlatency | <5.15.0-97.107 | 5.15.0-97.107 |
| ubuntu/linux-lowlatency | <6.5.0-21.21.1 | 6.5.0-21.21.1 |
| ubuntu/linux-lowlatency | <6.7~ | 6.7~ |
| ubuntu/linux-lowlatency-hwe-5.15 | <5.15.0-97.107~20.04.1 | 5.15.0-97.107~20.04.1 |
| ubuntu/linux-lowlatency-hwe-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.5.0-21.21.1~22.04.1 | 6.5.0-21.21.1~22.04.1 |
| ubuntu/linux-lowlatency-hwe-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-lowlatency-hwe-6.8 | <6.7~ | 6.7~ |
| ubuntu/linux-lts-xenial | <4.4.0-252.286~14.04.1 | 4.4.0-252.286~14.04.1 |
| ubuntu/linux-lts-xenial | <6.7~ | 6.7~ |
| ubuntu/linux-nvidia | <5.15.0-1045.45 | 5.15.0-1045.45 |
| ubuntu/linux-nvidia | <6.7~ | 6.7~ |
| ubuntu/linux-nvidia-6.5 | <6.5.0-1014.14 | 6.5.0-1014.14 |
| ubuntu/linux-nvidia-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-nvidia-6.8 | <6.7~ | 6.7~ |
| ubuntu/linux-nvidia-lowlatency | <6.7~ | 6.7~ |
| ubuntu/linux-oem-6.1 | <6.1.0-1033.33 | 6.1.0-1033.33 |
| ubuntu/linux-oem-6.1 | <6.7~ | 6.7~ |
| ubuntu/linux-oem-6.5 | <6.5.0-1015.16 | 6.5.0-1015.16 |
| ubuntu/linux-oem-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-oem-6.8 | <6.7~ | 6.7~ |
| ubuntu/linux-oracle | <4.15.0-1129.140 | 4.15.0-1129.140 |
| ubuntu/linux-oracle | <5.4.0-1118.127 | 5.4.0-1118.127 |
| ubuntu/linux-oracle | <5.15.0-1052.58 | 5.15.0-1052.58 |
| ubuntu/linux-oracle | <6.5.0-1016.16 | 6.5.0-1016.16 |
| ubuntu/linux-oracle | <6.7~ | 6.7~ |
| ubuntu/linux-oracle | <4.15.0-1129.140~16.04.1 | 4.15.0-1129.140~16.04.1 |
| ubuntu/linux-oracle-5.15 | <5.15.0-1052.58~20.04.1 | 5.15.0-1052.58~20.04.1 |
| ubuntu/linux-oracle-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-oracle-5.4 | <5.4.0-1118.127~18.04.1 | 5.4.0-1118.127~18.04.1 |
| ubuntu/linux-oracle-5.4 | <6.7~ | 6.7~ |
| ubuntu/linux-oracle-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-raspi | <5.4.0-1103.115 | 5.4.0-1103.115 |
| ubuntu/linux-raspi | <5.15.0-1047.50 | 5.15.0-1047.50 |
| ubuntu/linux-raspi | <6.5.0-1011.14 | 6.5.0-1011.14 |
| ubuntu/linux-raspi | <6.7.0-1001.1 | 6.7.0-1001.1 |
| ubuntu/linux-raspi | <6.7~ | 6.7~ |
| ubuntu/linux-raspi-5.4 | <5.4.0-1103.115~18.04.1 | 5.4.0-1103.115~18.04.1 |
| ubuntu/linux-raspi-5.4 | <6.7~ | 6.7~ |
| ubuntu/linux-raspi-realtime | <6.7~ | 6.7~ |
| ubuntu/linux-realtime | <6.7~ | 6.7~ |
| ubuntu/linux-riscv | <6.5.0-21.21.1 | 6.5.0-21.21.1 |
| ubuntu/linux-riscv | <6.7~ | 6.7~ |
| ubuntu/linux-riscv-5.15 | <5.15.0-1050.54~20.04.1 | 5.15.0-1050.54~20.04.1 |
| ubuntu/linux-riscv-5.15 | <6.7~ | 6.7~ |
| ubuntu/linux-riscv-6.5 | <6.5.0-21.21.1~22.04.1 | 6.5.0-21.21.1~22.04.1 |
| ubuntu/linux-riscv-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-riscv-6.8 | <6.7~ | 6.7~ |
| ubuntu/linux-starfive | <6.5.0-1008.9 | 6.5.0-1008.9 |
| ubuntu/linux-starfive | <6.7~ | 6.7~ |
| ubuntu/linux-starfive-6.5 | <6.5.0-1008.9~22.04.1 | 6.5.0-1008.9~22.04.1 |
| ubuntu/linux-starfive-6.5 | <6.7~ | 6.7~ |
| ubuntu/linux-xilinx-zynqmp | <5.4.0-1038.42 | 5.4.0-1038.42 |
| ubuntu/linux-xilinx-zynqmp | <5.15.0-1030.34 | 5.15.0-1030.34 |
| ubuntu/linux-xilinx-zynqmp | <6.7~ | 6.7~ |
| debian/linux | 5.10.223-1 6.1.106-3 6.1.99-1 6.10.6-1 6.10.9-1 |
Remedy
Ensure that /etc/modprobe.d/blacklist-rare-network.conf contains the following lines: # appletalk alias net-pf-5 off
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.6.8
- https://github.com/torvalds/linux/commit/189ff16722ee36ced4d2a2469d4ab65a8fee4198
- https://lists.debian.org/debian-lts-announce/2024/01/msg00004.html
- https://lists.debian.org/debian-lts-announce/2024/01/msg00005.html
- https://launchpad.net/bugs/cve/CVE-2023-51781
- https://git.kernel.org/linus/189ff16722ee36ced4d2a2469d4ab65a8fee4198
- https://security-tracker.debian.org/tracker/CVE-2023-51781
- https://git.kernel.org/linus/189ff16722ee36ced4d2a2469d4ab65a8fee4198 (6.7-rc6)
- https://lore.kernel.org/all/20231213041056.GA519680@v4bel-B760M-AORUS-ELITE-AX/
- https://ubuntu.com/security/notices/USN-6639-1
- https://ubuntu.com/security/notices/USN-6648-1
- https://ubuntu.com/security/notices/USN-6651-1
- https://ubuntu.com/security/notices/USN-6652-1
- https://ubuntu.com/security/notices/USN-6653-1
- https://ubuntu.com/security/notices/USN-6648-2
- https://ubuntu.com/security/notices/USN-6651-2
- https://ubuntu.com/security/notices/USN-6653-2
- https://ubuntu.com/security/notices/USN-6651-3
- https://ubuntu.com/security/notices/USN-6653-3
- https://ubuntu.com/security/notices/USN-6653-4
- https://ubuntu.com/security/notices/USN-6700-1
- https://ubuntu.com/security/notices/USN-6701-1
- https://ubuntu.com/security/notices/USN-6701-2
- https://ubuntu.com/security/notices/USN-6700-2
- https://ubuntu.com/security/notices/USN-6701-3
- https://ubuntu.com/security/notices/USN-6701-4
- https://www.cve.org/CVERecord?id=CVE-2023-51781
- https://ubuntu.com/security/notices/LSN-0102-1
- https://ubuntu.com/security/notices/LSN-0103-1
- https://ubuntu.com/security/notices/LSN-0104-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-51781
- https://git.kernel.org/linus/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
- https://ubuntu.com/security/CVE-2023-51781
Parent vulnerabilities
(Appears in the following advisories)
- agent/type
- agent/first-publish-date
- collector/nvd-api
- source/NVD
- agent/software-canonical-lookup
- agent/severity
- agent/remedy
- agent/description
- collector/launchpad-cve
- source/Launchpad
- agent/author
- collector/nvd-cve
- agent/event
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/weakness
- agent/references
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- collector/usn-cve
- source/Ubuntu
- vendor/linux
- canonical/linux linux kernel
- version/linux linux kernel/2.6.12-rc2
- version/linux linux kernel/2.6.12-rc3
- version/linux linux kernel/2.6.12-rc4
- version/linux linux kernel/2.6.12-rc5
- version/linux linux kernel/2.6.12-rc6
- version/linux linux kernel/6.7-rc1
- version/linux linux kernel/6.7-rc2
- version/linux linux kernel/6.7-rc3
- version/linux linux kernel/6.7-rc4
- version/linux linux kernel/6.7-rc5
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/10.0
- package-manager/debian
- package-manager/ubuntu