Description
A flaw use-after-free in function sco_sock_sendmsg() of the Linux kernel HCI subsystem was found in the way user calls ioct UFFDIO_REGISTER or other way triggers race condition of the call sco_conn_del() together with the call sco_sock_sendmsg() with the expected controllable faulting memory page. A privileged local user could use this flaw to crash the system or escalate their privileges on the system.
Details
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| linux | — | 5.4.0-97.110 |
| linux-aws | — | 5.4.0-1064.67 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | 5.11.0-1028.31~20.04.1 |
| linux-aws-5.13 | — | 5.13.0-1012.13~20.04.1 |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1064.67~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-fips | — | — |
| linux-aws-hwe | — | 4.15.0-1119.126~16.04.2 |
| linux-azure | — | 5.4.0-1068.71 |
| linux-azure-4.15 | — | 4.15.0-1131.144 |
| linux-azure-5.11 | — | 5.11.0-1028.31~20.04.2 |
| linux-azure-5.13 | — | 5.13.0-1013.15~20.04.1 |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1068.71~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-edge | — | — |
| linux-azure-fde-5.15 | — | — |
| linux-azure-fips | — | — |
| linux-bluefield | — | — |
| linux-dell300x | — | 4.15.0-1034.39 |
| linux-fips | — | — |
| linux-gcp | — | 5.4.0-1063.67 |
| linux-gcp-4.15 | — | 4.15.0-1115.129 |
| linux-gcp-5.11 | — | 5.11.0-1029.33~20.04.3 |
| linux-gcp-5.13 | — | 5.13.0-1013.16~20.04.1 |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1063.67~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-edge | — | — |
| linux-gcp-fips | — | — |
| linux-gke | — | 5.4.0-1061.64 |
| linux-gke-4.15 | — | — |
| linux-gke-5.4 | — | 5.4.0-1061.64~18.04.1 |
| linux-gkeop | — | 5.4.0-1032.33 |
| linux-gkeop-5.4 | — | 5.4.0-1032.33~18.04.1 |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | 5.13.0-28.31~20.04.1 |
| linux-hwe-5.4 | — | 5.4.0-97.110~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.4.0-1013.14 |
| linux-ibm-5.4 | — | 5.4.0-1014.15~18.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | — |
| linux-kvm | — | 5.4.0-1054.56 |
| linux-lts-xenial | — | — |
| linux-oem | — | — |
| linux-oem-5.10 | — | 5.10.0-1053.55 |
| linux-oem-5.13 | — | 5.13.0-1029.36 |
| linux-oem-5.14 | — | 5.14.0-1013.13 |
| linux-oem-5.6 | — | — |
| linux-oracle | — | 5.4.0-1062.66 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | 5.11.0-1028.31~20.04.1 |
| linux-oracle-5.13 | — | 5.13.0-1016.20~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1062.66~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-raspi | — | 5.4.0-1052.58 |
| linux-raspi-5.4 | — | 5.4.0-1052.58~18.04.1 |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | — |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.8 | — | — |
| linux-snapdragon | — | 4.15.0-1119.128 |
References
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