CVE-2017-7895

critical

Description

The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lack certain checks for the end of a buffer, which allows remote attackers to trigger pointer-arithmetic errors or possibly have unspecified other impact via crafted requests, related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.

References

http://www.debian.org/security/2017/dsa-3886

http://www.securityfocus.com/bid/98085

https://access.redhat.com/errata/RHSA-2017:1615

https://access.redhat.com/errata/RHSA-2017:1616

https://access.redhat.com/errata/RHSA-2017:1647

https://access.redhat.com/errata/RHSA-2017:1715

https://access.redhat.com/errata/RHSA-2017:1723

https://access.redhat.com/errata/RHSA-2017:1766

https://access.redhat.com/errata/RHSA-2017:1798

https://access.redhat.com/errata/RHSA-2017:2412

https://access.redhat.com/errata/RHSA-2017:2428

https://access.redhat.com/errata/RHSA-2017:2429

https://access.redhat.com/errata/RHSA-2017:2472

https://access.redhat.com/errata/RHSA-2017:2732

https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=13bf9fbff0e5e099e2b6f003a0ab8ae145436309

https://github.com/torvalds/linux/commit/13bf9fbff0e5e099e2b6f003a0ab8ae145436309

Details

Source: MITRE

Published: 2017-04-28

Updated: 2019-10-03

Type: CWE-119

Risk Information

CVSS v2

Base Score: 10

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

Impact Score: 10

Exploitability Score: 10

Severity: HIGH

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 3.9

Severity: CRITICAL