CVE-2020-8428
At a glance
- Source
- NVD
- EPSS
- EPSS 0.68 % · percentile 52 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
fs/namei.c in the Linux kernel before 5.5 has a may_create_in_sticky use-after-free, which allows local users to cause a denial of service (OOPS) or possibly obtain sensitive information from kernel memory, aka CID-d0cb50185ae9. One attack vector may be an open system call for a UNIX domain socket, if the socket is being moved to a new parent directory and its old parent directory is being removed.
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://www.openwall.com/lists/oss-security/2020/01/28/2
- https://github.com/torvalds/linux/commit/d0cb50185ae942b03c4327be322055d622dc79f6
- https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=d0cb50185ae942b03c4327be322055d622dc79f6
- http://www.openwall.com/lists/oss-security/2020/01/28/4
- http://www.openwall.com/lists/oss-security/2020/02/02/1
- https://security.netapp.com/advisory/ntap-20200313-0003/
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://usn.ubuntu.com/4320-1/
- https://usn.ubuntu.com/4318-1/
- http://packetstormsecurity.com/files/157233/Kernel-Live-Patch-Security-Notice-LSN-0065-1.html
- https://usn.ubuntu.com/4324-1/
- https://usn.ubuntu.com/4325-1/
- https://usn.ubuntu.com/4319-1/
- https://www.debian.org/security/2020/dsa-4667
- https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
- https://www.debian.org/security/2020/dsa-4698
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.1 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | LOW 3.6 | AV:L/AC:L/Au:N/C:P/I:N/A:P | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2020-29295
- GCVE · GCVE-0-2020-8428
CERT-FR advisories
- CERTFR-2020-AVI-368 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2020-AVI-331 — Multiples vulnérabilités dans Google Android · cert.ssi.gouv.fr
- CERTFR-2020-AVI-191 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2020-AVI-148 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2020-AVI-130 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2020-AVI-124 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2020-AVI-119 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.19 < 5.5
Affected products
| Product | Versions |
|---|---|
| affected n/a |
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 |