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Vulnerability · Published Oct 20, 2022 · Assigned by VulDB

CVE-2022-3621Linux Kernel nilfs2 inode.c nilfs_bmap_lookup_at_level null pointer dereference

Medium 4.3

In plain English

A medium-severity security flaw 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 1.7% (higher than 78% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium
Exploit odds (30 days)1.7%top 22.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is the function nilfs_bmap_lookup_at_level of the file fs/nilfs2/inode.c of the component nilfs2. The manipulation leads to null pointer dereference. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211920.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12linux6.0.2-1DEBIAN-CVE-2022-3621
Debian:13linux6.0.2-1DEBIAN-CVE-2022-3621
Debian:14linux6.0.2-1DEBIAN-CVE-2022-3621
Ubuntu:22.04:LTSlinux5.15.0-56.62UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux5.15.0-56.62USN-5755-1
Ubuntu:22.04:LTSlinux-aws5.15.0-1026.30UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-aws5.15.0-1026.30USN-5755-1
Ubuntu:22.04:LTSlinux-aws-6.2no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-azure5.15.0-1029.36USN-5779-1
Ubuntu:22.04:LTSlinux-azure5.15.0-1029.36UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-azure-6.2no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1029.36.1UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-azure-fde5.15.0-1029.36.1USN-5779-1
Ubuntu:22.04:LTSlinux-azure-fde-6.2no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-gcp5.15.0-1025.32USN-5755-1
Ubuntu:22.04:LTSlinux-gcp5.15.0-1025.32UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-gcp-6.2no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-gke5.15.0-1023.28USN-5755-2
Ubuntu:22.04:LTSlinux-gke5.15.0-1023.28UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1011.15UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-gkeop5.15.0-1011.15USN-5755-1
Ubuntu:22.04:LTSlinux-hwe-6.2no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-ibm5.15.0-1021.24USN-5755-1
Ubuntu:22.04:LTSlinux-ibm5.15.0-1021.24UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-intel-iot-realtimeno fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1021.26USN-5755-1
Ubuntu:22.04:LTSlinux-intel-iotg5.15.0-1021.26UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-kvm5.15.0-1024.29UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-kvm5.15.0-1024.29USN-5755-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-56.62USN-5755-1
Ubuntu:22.04:LTSlinux-lowlatency5.15.0-56.62UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-lowlatency-hwe-6.2no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-nvidia5.15.0-1015.15UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-nvidia-6.2no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-oem-5.175.17.0-1024.25USN-5773-1
Ubuntu:22.04:LTSlinux-oem-5.175.17.0-1024.25UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-oem-6.0no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-oem-6.1no fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-oracle5.15.0-1025.31USN-5755-1
Ubuntu:22.04:LTSlinux-oracle5.15.0-1025.31UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-raspi5.15.0-1021.23UBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-raspi5.15.0-1021.23USN-5755-1
Ubuntu:24.04:LTSlinux-raspi-realtimeno fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-realtimeno fix listedUBUNTU-CVE-2022-3621
Ubuntu:22.04:LTSlinux-riscvno fix listedUBUNTU-CVE-2022-3621

Affected products (as reported)

VendorProductVersions
Linux Kernel n/a

Weakness: CWE-404 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References