The NFSv2 and NFSv3 server implementations in the Linux kernel through 4.10.13 lacked certain checks for the end of a buffer. A remote attacker could trigger a pointer-arithmetic error or possibly cause other unspecified impacts using crafted requests related to fs/nfsd/nfs3xdr.c and fs/nfsd/nfsxdr.c.
Find out more about CVE-2017-7895 from the MITRE CVE dictionary dictionary and NIST NVD.
This issue affects the versions of the Linux kernel as shipped with Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2. Future kernel updates for Red Hat Enterprise Linux 5, 6, 7 and Red Hat Enterprise MRG 2 may address this issue.
| CVSS3 Base Score | 6.5 |
|---|---|
| CVSS3 Base Metrics | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| Attack Vector | Network |
| Attack Complexity | Low |
| Privileges Required | Low |
| User Interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity Impact | None |
| Availability Impact | None |
| Platform | Errata | Release Date |
|---|---|---|
| Red Hat Enterprise Linux Server TUS (v. 6.6) (kernel) | RHSA-2017:1798 | 2017-07-24 |
| Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) | RHSA-2017:1616 | 2017-06-28 |
| Red Hat Enterprise Linux 7 (kernel) | RHSA-2017:1615 | 2017-06-28 |
| Red Hat Enterprise Linux Long Life (v. 5.9 server) (kernel) | RHSA-2017:2472 | 2017-08-15 |
| Red Hat Enterprise Linux Advanced Update Support 6.4 (kernel) | RHSA-2017:1715 | 2017-07-11 |
| Red Hat Enterprise Linux 6 (kernel) | RHSA-2017:1723 | 2017-07-11 |
| Red Hat Enterprise Linux Server TUS (v. 6.5) (kernel) | RHSA-2017:2428 | 2017-08-08 |
| Red Hat Enterprise Linux Extended Update Support 7.2 (kernel) | RHSA-2017:1766 | 2017-07-18 |
| Red Hat Enterprise Linux Advanced Update Support 6.5 (kernel) | RHSA-2017:2428 | 2017-08-08 |
| Red Hat MRG Grid for RHEL 6 Server v.2 (kernel-rt) | RHSA-2017:1647 | 2017-06-28 |
| Red Hat Enterprise Linux Extended Update Support 6.7 (kernel) | RHSA-2017:2429 | 2017-08-08 |
| Red Hat Enterprise Linux Advanced Update Support 6.2 (kernel) | RHSA-2017:2732 | 2017-09-14 |
| Red Hat Enterprise Linux Advanced Update Support 6.6 (kernel) | RHSA-2017:1798 | 2017-07-24 |
| Red Hat Enterprise Linux Server (v. 5 ELS) (kernel) | RHSA-2017:2412 | 2017-08-02 |
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