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Vulnerability record · CVE-2017-7645 · published 18 April 2017

CVE-2017-7645: Linux kernel improper input validation vulnerability

Linux · Linux Kernel

The NFSv2/NFSv3 server in the nfsd subsystem in the Linux kernel through 4.10.11 allows remote attackers to cause a denial of service (system crash) via a long RPC reply, related to net/sunrpc/svc.c, fs/nfsd/nfs3xdr.c, and fs/nfsd/nfsxdr.c.

7.5 CVSS 3.1 High EPSS 5.9% · top 7.0% CWE-20 · Improper input validation
7.5CVSS 3.1 base score, v2 7.8
5.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
24References
17 Jun 2026Last modified by NVD

Description

The NFSv2/NFSv3 server in the nfsd subsystem in the Linux kernel through 4.10.11 allows remote attackers to cause a denial of service (system crash) via a long RPC reply, related to net/sunrpc/svc.c, fs/nfsd/nfs3xdr.c, and fs/nfsd/nfsxdr.c.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.debian.org/security/2017/dsa-3886 Third Party Advisory
http://www.securityfocus.com/bid/97950 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:1615 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1616 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1647 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1319 Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6838a29ecb484c97e4efef9429643b9851fba6e Vendor Advisory
https://github.com/torvalds/linux/commit/e6838a29ecb484c97e4efef9429643b9851fba6e PatchThird Party Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 Third Party Advisory
https://marc.info/?l=linux-nfs&m=149218228327497&w=2 Mailing ListPatchThird Party Advisory
https://marc.info/?l=linux-nfs&m=149247516212924&w=2 Mailing ListPatchThird Party Advisory
https://usn.ubuntu.com/3754-1/ Third Party Advisory
http://www.debian.org/security/2017/dsa-3886 Third Party Advisory
http://www.securityfocus.com/bid/97950 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHSA-2017:1615 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1616 Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:1647 Third Party Advisory
https://access.redhat.com/errata/RHSA-2018:1319 Third Party Advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6838a29ecb484c97e4efef9429643b9851fba6e Vendor Advisory
https://github.com/torvalds/linux/commit/e6838a29ecb484c97e4efef9429643b9851fba6e PatchThird Party Advisory
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 Third Party Advisory
https://marc.info/?l=linux-nfs&m=149218228327497&w=2 Mailing ListPatchThird Party Advisory
https://marc.info/?l=linux-nfs&m=149247516212924&w=2 Mailing ListPatchThird Party Advisory
https://usn.ubuntu.com/3754-1/ Third Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2017-7645), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.