Log in Start free

Vulnerability · Published Jun 28, 2023 · Assigned by Google

CVE-2023-3389Use after free in io_uring in the Linux Kernel

High 7.8

In plain English

A high-severity use-after-free in Kernel from Linux. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.7%top 47.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A use-after-free vulnerability in the Linux Kernel io_uring subsystem can be exploited to achieve local privilege escalation. Racing a io_uring cancel poll request with a linked timeout can cause a UAF in a hrtimer. We recommend upgrading past commit ef7dfac51d8ed961b742218f526bd589f3900a59 (4716c73b188566865bdd79c3a6709696a224ac04 for 5.10 stable and 0e388fce7aec40992eadee654193cad345d62663 for 5.15 stable).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.0.2-1DEBIAN-CVE-2023-3389
Debian:13linux6.0.2-1DEBIAN-CVE-2023-3389
Debian:14linux6.0.2-1DEBIAN-CVE-2023-3389
Ubuntu:22.04:LTSlinux5.15.0-78.85USN-6246-1
Ubuntu:22.04:LTSlinux5.15.0-78.85UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-aws5.15.0-1040.45UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-aws5.15.0-1040.45USN-6246-1
Ubuntu:22.04:LTSlinux-aws-5.195.19.0-1029.30~22.04.1USN-6260-1
Ubuntu:22.04:LTSlinux-aws-5.195.19.0-1029.30~22.04.1UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-azure5.15.0-1042.49UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-azure5.15.0-1042.49USN-6246-1
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1042.49.1USN-6246-1
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1042.49.1UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-gcp5.15.0-1038.46USN-6246-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1038.46UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-gcp-5.195.19.0-1030.32~22.04.1USN-6260-1
Ubuntu:22.04:LTSlinux-gcp-5.195.19.0-1030.32~22.04.1UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-gke5.15.0-1038.43UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-gke5.15.0-1038.43USN-6246-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1024.29USN-6246-1
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1024.29UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-hwe-5.195.19.0-50.50UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-hwe-5.195.19.0-50.50USN-6260-1
Ubuntu:22.04:LTSlinux-hwe-6.26.2.0-26.26~22.04.1UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-ibm5.15.0-1034.37USN-6246-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1034.37UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1036.41USN-6246-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1036.41UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-kvm5.15.0-1038.43UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-kvm5.15.0-1038.43USN-6246-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-78.85USN-6246-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-78.85UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.195.19.0-1030.30UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1029.29UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1029.29USN-6246-1
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1016.16UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1002.2UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-oem-6.06.0.0-1020.20USN-6248-1
Ubuntu:22.04:LTSlinux-oem-6.06.0.0-1020.20UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1017.17USN-6249-1
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1017.17UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-oracle5.15.0-1039.45USN-6246-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1039.45UBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-raspi5.15.0-1034.37USN-6246-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1034.37UBUNTU-CVE-2023-3389
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-3389
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-3389

Affected products (as reported)

VendorProductVersions
Linux Kernel 5.13 – before 6.45.10.162 – before 5.10.185

Weakness: CWE-416 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References