CVE-2017-7979
At a glance
- Source
- NVD
- EPSS
- EPSS 0.40 % · percentile 34 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- mitre
- NVD status
- Modified
Description
The cookie feature in the packet action API implementation in net/sched/act_api.c in the Linux kernel 4.11.x through 4.11-rc7 mishandles the tb nlattr array, which allows local users to cause a denial of service (uninitialized memory access and refcount underflow, and system hang or crash) or possibly have unspecified other impact via "tc filter add" commands in certain contexts. NOTE: this does not affect stable kernels, such as 4.10.x, from kernel.org.
Weaknesses (CWE)
- CWE-20 — Improper Input Validation
References
- http://marc.info/?l=linux-netdev&m=149251041420195
- https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1682368
- https://bugzilla.proxmox.com/show_bug.cgi?id=1351
- http://marc.info/?l=linux-netdev&m=149200742616349
- http://marc.info/?l=linux-netdev&m=149200746116365
- http://marc.info/?l=linux-netdev&m=149251041420194
- http://marc.info/?l=linux-netdev&m=149200746116366
- http://www.securityfocus.com/bid/97969
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.0 | HIGH 7.8 | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 2.0 | HIGH 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2017-16949
- GCVE · GCVE-0-2017-7979
CERT-FR advisories
- CERTFR-2017-AVI-169 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:4.11:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.11:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.11:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.11:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.11:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.11:rc6:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:4.11:rc7:*:*:*:*:*:*
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 |