kernel
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 13 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
A flaw possibility of race condition and incorrect initialization of the process id was found in the Linux kernel child/parent process identification handling while filtering signal handlers. A local attacker is able to abuse this flaw to bypass checks to send any signal to a privileged process.
Weaknesses (CWE)
- CWE-665 — Improper Initialization
- CWE-362 — Concurrent Execution using Shared Resource with Improper Synchronization
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.5 | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | MEDIUM 4.4 | AV:L/AC:M/Au:N/C:P/I:P/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-23177
- GCVE · GCVE-0-2020-35508
CERT-FR advisories
- CERTFR-2022-AVI-425 — Multiples vulnérabilités dans IBM Spectrum Protect Plus · cert.ssi.gouv.fr
- CERTFR-2022-AVI-239 — Multiples vulnérabilités dans les produits IBM · cert.ssi.gouv.fr
- CERTFR-2022-AVI-092 — Multiples vulnérabilités dans IBM Spectrum Protect Plus · cert.ssi.gouv.fr
- CERTFR-2021-AVI-573 — Multiples vulnérabilités dans le noyau Linux de Red Hat · cert.ssi.gouv.fr
- CERTFR-2021-AVI-551 — Multiples vulnérabilités dans le noyau Linux de RedHat · cert.ssi.gouv.fr
- CERTFR-2021-AVI-149 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 5.12cpe:2.3:o:linux:linux_kernel:5.12:-:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.12:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.12:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.12:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:5.12:rc4:*:*:*:*:*:*cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*cpe:2.3:o:netapp:a700s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:brocade_fabric_operating_system_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:fas8300_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:fas8700_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:aff_a400_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h610c_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h610s_firmware:-:*:*:*:*:*:*:*cpe:2.3:o:netapp:h615c_firmware:-:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| kernel | affected kernel 5.12 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |