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Vulnerability · Published Oct 19, 2022 · Assigned by redhat

CVE-2022-3586

Medium 5.5

In plain English

A medium-severity use-after-free in Linux Kernel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 42% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.5%top 57.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in the Linux kernel’s networking code. A use-after-free was found in the way the sch_sfb enqueue function used the socket buffer (SKB) cb field after the same SKB had been enqueued (and freed) into a child qdisc. This flaw allows a local, unprivileged user to crash the system, causing a denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux5.19.11-1DEBIAN-CVE-2022-3586
Debian:13linux5.19.11-1DEBIAN-CVE-2022-3586
Debian:14linux5.19.11-1DEBIAN-CVE-2022-3586
Ubuntu:22.04:LTSlinux5.15.0-57.63USN-5792-1
Ubuntu:22.04:LTSlinux5.15.0-57.63UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-aws5.15.0-1027.31USN-5792-2
Ubuntu:22.04:LTSlinux-aws5.15.0-1027.31UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-azure5.15.0-1030.37UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-azure5.15.0-1030.37USN-5792-2
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1030.37.1USN-5792-2
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1030.37.1UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-gcp5.15.0-1026.33USN-5792-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1026.33UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-gke5.15.0-1024.29USN-5792-1
Ubuntu:22.04:LTSlinux-gke5.15.0-1024.29UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1012.16UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1012.16USN-5792-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1022.25USN-5792-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1022.25UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1023.28UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-kvm5.15.0-1025.30USN-5792-1
Ubuntu:22.04:LTSlinux-kvm5.15.0-1025.30UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-57.63UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-57.63USN-5792-1
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-oem-5.175.17.0-1031.32UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-oem-5.175.17.0-1031.32USN-6071-1
Ubuntu:22.04:LTSlinux-oem-5.175.17.0-1032.33USN-6124-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1026.32USN-5792-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1026.32UBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-raspi5.15.0-1022.24USN-5792-1
Ubuntu:22.04:LTSlinux-raspi5.15.0-1022.24UBUNTU-CVE-2022-3586
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-3586
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-3586

Affected products (as reported)

VendorProductVersions
n/a Linux Kernel Fixed in kernel v6.0

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

References