CVE-2017-8797
At a glance
- Source
- NVD
- EPSS
- EPSS 9.48 % · percentile 95 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system.
Weaknesses (CWE)
- CWE-129 — Improper Validation of Array Index
References
- http://www.openwall.com/lists/oss-security/2017/06/27/5
- http://www.securitytracker.com/id/1038790
- https://access.redhat.com/errata/RHSA-2017:2437
- https://github.com/torvalds/linux/commit/f961e3f2acae94b727380c0b74e2d3954d0edf79
- https://access.redhat.com/errata/RHSA-2017:2669
- https://bugzilla.redhat.com/show_bug.cgi?id=1466329
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=f961e3f2acae94b727380c0b74e2d3954d0edf79
- https://github.com/torvalds/linux/commit/b550a32e60a4941994b437a8d662432a486235a5
- https://access.redhat.com/errata/RHSA-2017:2077
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.11.3
- https://access.redhat.com/errata/RHSA-2017:1842
- http://www.securityfocus.com/bid/99298
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b550a32e60a4941994b437a8d662432a486235a5
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.8 | AV:N/AC:L/Au:N/C:N/I:N/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2017-17740
- GCVE · GCVE-0-2017-8797
CERT-FR advisories
- CERTFR-2017-AVI-287 — Multiples vulnérabilités dans le noyau Linux de RedHat · cert.ssi.gouv.fr
- CERTFR-2017-AVI-262 — Multiples vulnérabilités dans le noyau Linux de RedHat · cert.ssi.gouv.fr
- CERTFR-2017-AVI-249 — Multiples vulnérabilités dans le noyau Linux de Suse · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.0 < 4.1.40cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.2 < 4.4.70cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.5 < 4.9.30cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.11 < 4.11.3
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 |