CVE-2017-7645: Canonical Ubuntu Linux

High severity, CVSS 7.5. EPSS: 5.9% chance of exploitation in the next 30 days.

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.

Affected products

• Canonical Ubuntu Linux: version 14.04 only
• Debian Debian Linux: version 8.0 only; version 9.0 only
• Linux Linux Kernel: before 3.2.89 (fixed in 3.2.89); from 3.3, before 3.10.107 (fixed in 3.10.107); from 3.11, before 3.12.74 (fixed in 3.12.74); from 3.13, before 3.16.44 (fixed in 3.16.44); from 3.17, before 3.18.52 (fixed in 3.18.52); from 3.19, before 4.1.40 (fixed in 4.1.40); …

Published 2017-04-18. Last modified 2026-06-17.