Medium severity · published Oct 20, 2022
CVE-2022-3621
Linux Kernel nilfs2 inode.c nilfs_bmap_lookup_at_level null pointer dereference
6.5
CVSS
1.7%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.7% · higher than 77% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Kernel · Linux
All versions, or not specified · source: vendor, NVD
DL
Debian Linux · Debian
10.0 · source: NVD
SS
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem · Siemens
before V1.1 · source: CISA
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2022-3621
CVE.org
https://www.cve.org/CVERecord?id=CVE-2022-3621
Mailing List
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=21a87d88c2253350e115029f14fe2a10a7e6c856
Mailing List
https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
Mailing List
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
Third Party Advisory
https://vuldb.com/?id.211920
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/html/ssa-794697.html
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