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Vulnerability · Published Nov 1, 2023 · Assigned by redhat

CVE-2023-1192Use-after-free in smb2_is_status_io_timeout()

Medium 6.5

In plain English

A medium-severity use-after-free in Fedora from Fedora. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)1.1%top 34.1% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A use-after-free flaw was found in smb2_is_status_io_timeout() in CIFS in the Linux Kernel. After CIFS transfers response data to a system call, there are still local variable points to the memory region, and if the system call frees it faster than CIFS uses it, CIFS will access a free memory region, leading to a denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-abi-stablelists4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-core4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-cross-headers4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-debug4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-debug-core4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-debug-devel4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-debug-modules4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-debug-modules-extra4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-devel4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-doc4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-modules4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-modules-extra4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-tools4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-tools-libs4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-tools-libs-devel4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-zfcpdump4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-zfcpdump-core4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-zfcpdump-devel4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-zfcpdump-modules4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8perf4.18.0-513.9.1.el8_9ALSA-2023:7549
AlmaLinux:8python3-perf4.18.0-513.9.1.el8_9ALSA-2023:7549
Debian:12linux6.1.64-1DEBIAN-CVE-2023-1192
Debian:13linux6.5.6-1DEBIAN-CVE-2023-1192
Debian:14linux6.5.6-1DEBIAN-CVE-2023-1192
Rocky Linux:8kernel0:4.18.0-513.9.1.el8_9RLSA-2023:7549
Rocky Linux:8kernel0:4.18.0-513.9.1.el8_9.cloudRXSA-2023:7549
Rocky Linux:9kernel0:5.14.0-362.13.1.el9_3.cloud.0.3RXSA-2023:7749
Rocky Linux:8kernel-rt0:4.18.0-513.9.1.rt7.311.el8_9RLSA-2023:7548
Ubuntu:22.04:LTSlinux5.15.0-83.92UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-allwinner-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-aws5.15.0-1044.49UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-aws-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-azure5.15.0-1046.53UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-azure-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1046.53.1UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-azure-fde-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-gcp5.15.0-1041.49UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-gcp-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-gke5.15.0-1041.46UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1027.32UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-hwe-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-ibm5.15.0-1037.40UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1039.45UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-kvm5.15.0-1041.46UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-83.92UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-lowlatency-hwe-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1032.32UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-nvidia-tegra5.15.0-1017.17UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-nvidia-tegra-igx5.15.0-1004.4UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-oem-5.17no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-oem-6.16.1.0-1016.16UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-oracle5.15.0-1042.48UBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-raspi5.15.0-1037.40UBUNTU-CVE-2023-1192
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-riscv-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-starfive-5.19no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-starfive-6.2no fix listedUBUNTU-CVE-2023-1192
Ubuntu:22.04:LTSlinux-xilinx-zynqmp5.15.0-1025.29UBUNTU-CVE-2023-1192

Affected products (as reported)

VendorProductVersions
n/a kernel see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat Enterprise Linux 9 see references
Fedora Fedora see references

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

References