CVE-2017-7645

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
CVSS 2.0 •
EPSS 16.01% Top 10%
Vendor Advisory redhat.com Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory debian.org Vendor Advisory kernel.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://marc.info/?l=linux-nfs&m=149247516212924&w=2 patch mailing list third party advisory
https://access.redhat.com/errata/RHSA-2017:1615 third party advisory vendor advisory
https://usn.ubuntu.com/3754-1/ third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1647 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2017:1616 third party advisory vendor advisory
https://access.redhat.com/errata/RHSA-2018:1319 third party advisory vendor advisory
https://github.com/torvalds/linux/commit/e6838a29ecb484c97e4efef9429643b9851fba6e third party advisory patch
https://help.ecostruxureit.com/display/public/UADCE725/Security+fixes+in+StruxureWare+Data+Center+Expert+v7.6.0 third party advisory
http://www.securityfocus.com/bid/97950 third party advisory vdb entry
https://marc.info/?l=linux-nfs&m=149218228327497&w=2 patch mailing list third party advisory
http://www.debian.org/security/2017/dsa-3886 third party advisory vendor advisory
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=e6838a29ecb484c97e4efef9429643b9851fba6e vendor advisory

Frequently Asked Questions

What is the severity of CVE-2017-7645?
CVE-2017-7645 has been scored as a high severity vulnerability.
How to fix CVE-2017-7645?
To fix CVE-2017-7645, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-7645 being actively exploited in the wild?
It is possible that CVE-2017-7645 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~16% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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