CVE-2017-7895 Information

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.

CVSS Vector

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

Reference

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

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8