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Vulnerability · Published Mar 30, 2023 · Assigned by redhat

CVE-2022-4744

High 7.8

In plain English

A high-severity security flaw in 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 40% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.5%top 60.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A double-free flaw was found in the Linux kernel’s TUN/TAP device driver functionality in how a user registers the device when the register_netdevice function fails (NETDEV_REGISTER notifier). This flaw allows a local user to crash or potentially escalate their privileges on the system.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
AlmaLinux:8bpftool4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9bpftool5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-abi-stablelists4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-abi-stablelists5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-core4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-core5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-cross-headers4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-cross-headers5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-debug4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-debug5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-debug-core4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-debug-core5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-debug-devel4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-debug-devel5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:9kernel-debug-devel-matched5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-debug-modules4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-debug-modules5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-debug-modules-extra4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-debug-modules-extra5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-devel4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-devel5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:9kernel-devel-matched5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-doc4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-doc5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-headers4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:8kernel-modules4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-modules5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-modules-extra4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-modules-extra5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:9kernel-rt5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-core5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-debug5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-debug-core5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-debug-devel5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-debug-kvm5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-debug-modules5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-debug-modules-extra5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-devel5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-kvm5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-modules5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:9kernel-rt-modules-extra5.14.0-162.22.2.rt21.186.el9_1ALSA-2023:1469
AlmaLinux:8kernel-tools4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-tools5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-tools-libs4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-tools-libs5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-tools-libs-devel4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-tools-libs-devel5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-zfcpdump4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-zfcpdump5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-zfcpdump-core4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-zfcpdump-core5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-zfcpdump-devel4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-zfcpdump-devel5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:9kernel-zfcpdump-devel-matched5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-zfcpdump-modules4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-zfcpdump-modules5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8kernel-zfcpdump-modules-extra4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9kernel-zfcpdump-modules-extra5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8perf4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9perf5.14.0-162.22.2.el9_1ALSA-2023:1470
AlmaLinux:8python3-perf4.18.0-513.5.1.el8_9ALSA-2023:7077
AlmaLinux:9python3-perf5.14.0-162.22.2.el9_1ALSA-2023:1470
Debian:12linux5.15.15-1DEBIAN-CVE-2022-4744
Debian:13linux5.15.15-1DEBIAN-CVE-2022-4744
Debian:14linux5.15.15-1DEBIAN-CVE-2022-4744
Rocky Linux:9kernel0:5.14.0-162.22.2.el9_1RLSA-2023:1470
Rocky Linux:9kernel-rt0:5.14.0-162.22.2.rt21.186.el9_1RLSA-2023:1469
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-4744

Affected products (as reported)

VendorProductVersions
n/a Kernel Linux kernel 5.16-rc7

Weakness: CWE-460 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References