CVE-2017-7895
Published: 28 April 2017
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.
From the Ubuntu Security Team
Tuomas Haanpää and Ari Kauppi discovered that the NFSv2 and NFSv3 server implementations in the Linux kernel did not properly check for the end of buffer. A remote attacker could use this to craft requests that cause a denial of service (system crash) or possibly execute arbitrary code.
Notes
Author | Note |
---|---|
jdstrand | android kernels (flo, goldfish, grouper, maguro, mako and manta) are not supported on the Ubuntu Touch 14.10 and earlier preview kernels linux-lts-saucy no longer receives official support linux-lts-quantal no longer receives official support |
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-22.24)
|
precise |
Ignored
(was needed ESM criteria)
|
|
trusty |
Released
(3.13.0-125.174)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Released
(4.4.0-79.100)
|
|
yakkety |
Released
(4.8.0-59.64)
|
|
zesty |
Released
(4.10.0-22.24)
|
|
Patches: Introduced by 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 |
||
linux-armadaxp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was needed)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-aws Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Released
(4.4.0-1018.27)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-azure Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-euclid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Ignored
(was needed ESM criteria)
|
|
zesty |
Does not exist
|
|
linux-flo Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-gcp Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Released
(4.4.0-1014.14)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Ignored
(abandoned)
|
|
linux-grouper Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Released
(4.10.0-27.30~16.04.2)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Released
(4.10.0-27.30~16.04.2)
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-kvm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
zesty |
Does not exist
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [end-of-life])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-raring Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [end-of-life])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [end-of-life])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
This package is not directly supported by the Ubuntu Security Team | ||
linux-lts-trusty Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Released
(3.13.0-125.174~precise1)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [out of standard support])
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [was needed now end-of-life])
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [out of standard support])
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Released
(4.4.0-79.100~14.04.1)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-maguro Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Ignored
(abandoned)
|
|
yakkety |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored)
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-oem Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Not vulnerable
(4.13.0-1008.9)
|
|
zesty |
Does not exist
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was ignored [abandoned])
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.10.0-1006.8)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Released
(4.4.0-1057.64)
|
|
yakkety |
Released
(4.8.0-1043.47)
|
|
zesty |
Released
(4.10.0-1006.8)
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Not vulnerable
(4.4.0-1059.63)
|
precise |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Released
(4.4.0-1059.63)
|
|
yakkety |
Released
(4.4.0-1059.63)
|
|
zesty |
Released
(4.4.0-1059.63)
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
precise |
Does not exist
(precise was needed)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.11)
|
|
xenial |
Does not exist
|
|
yakkety |
Does not exist
|
|
zesty |
Does not exist
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 9.8 |
Attack vector | Network |
Attack complexity | Low |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7895
- https://ubuntu.com/security/notices/USN-3314-1
- https://ubuntu.com/security/notices/USN-3312-1
- https://ubuntu.com/security/notices/USN-3312-2
- https://ubuntu.com/security/notices/USN-3359-1
- https://ubuntu.com/security/notices/USN-3361-1
- https://ubuntu.com/security/notices/USN-3360-1
- https://ubuntu.com/security/notices/USN-3360-2
- NVD
- Launchpad
- Debian