CVE-2018-1093
Linux kernel through version 4.15
MEDIUM 5.5
At a glance
- Source
- NVD
- EPSS
- EPSS 1.92 % · percentile 80 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- redhat
- NVD status
- Modified
Description
The ext4_valid_block_bitmap function in fs/ext4/balloc.c in the Linux kernel through 4.15.15 allows attackers to cause a denial of service (out-of-bounds read and system crash) via a crafted ext4 image because balloc.c and ialloc.c do not validate bitmap block numbers.
Weaknesses (CWE)
- CWE-125 — Out-of-bounds Read
References
- https://usn.ubuntu.com/3752-2/
- https://usn.ubuntu.com/3676-1/
- https://lists.debian.org/debian-lts-announce/2018/07/msg00015.html
- http://openwall.com/lists/oss-security/2018/03/29/1
- https://usn.ubuntu.com/3752-3/
- https://lists.debian.org/debian-lts-announce/2018/07/msg00016.html
- https://lists.debian.org/debian-lts-announce/2018/06/msg00000.html
- https://bugzilla.kernel.org/show_bug.cgi?id=199181
- https://www.debian.org/security/2018/dsa-4188
- https://usn.ubuntu.com/3754-1/
- https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git/commit/?id=7dac4a1726a9c64a517d595c40e95e2d0d135f6f
- https://bugzilla.redhat.com/show_bug.cgi?id=1560782
- https://usn.ubuntu.com/3676-2/
- https://usn.ubuntu.com/3752-1/
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | MEDIUM 5.5 | CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.1 | AV:N/AC:M/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2018-11743
- GCVE · GCVE-0-2018-1093
CERT-FR advisories
- CERTFR-2018-AVI-505 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2018-AVI-413 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2018-AVI-408 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2018-AVI-362 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2018-AVI-319 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2018-AVI-308 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2018-AVI-299 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2018-AVI-277 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≤ 4.15.15
Affected products
| Product | Versions |
|---|---|
| Linux kernel through version 4.15 | affected Linux kernel through version 4.15 |
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 |