CVE-2017-7645
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (5.91%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 5.91% probability · 93th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- linux/linux kernel · debian/debian linux · canonical/ubuntu linux
- Source
- cve@mitre.org
EPSS 5.9% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.debian.org/security/2017/dsa-3886Third Party Advisory
- http://www.securityfocus.com/bid/97950Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1615Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1616Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1647Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1319Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6838a29ecb484c97e4efef9429643b9851fba6eVendor Advisory
- https://github.com/torvalds/linux/commit/e6838a29ecb484c97e4efef9429643b9851fba6ePatch, Third Party Advisory
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
- https://marc.info/?l=linux-nfs&m=149218228327497&w=2Mailing List, Patch, Third Party Advisory
- https://marc.info/?l=linux-nfs&m=149247516212924&w=2Mailing List, Patch, Third Party Advisory
- https://usn.ubuntu.com/3754-1/Third Party Advisory
- http://www.debian.org/security/2017/dsa-3886Third Party Advisory
- http://www.securityfocus.com/bid/97950Third Party Advisory, VDB Entry
- https://access.redhat.com/errata/RHSA-2017:1615Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1616Third Party Advisory
- https://access.redhat.com/errata/RHSA-2017:1647Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:1319Third Party Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6838a29ecb484c97e4efef9429643b9851fba6eVendor Advisory
- https://github.com/torvalds/linux/commit/e6838a29ecb484c97e4efef9429643b9851fba6ePatch, Third Party Advisory
- https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0Third Party Advisory
- https://marc.info/?l=linux-nfs&m=149218228327497&w=2Mailing List, Patch, Third Party Advisory
- https://marc.info/?l=linux-nfs&m=149247516212924&w=2Mailing List, Patch, Third Party Advisory
- https://usn.ubuntu.com/3754-1/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.