CVE-2017-16994
Published: 27 November 2017
The walk_hugetlb_range function in mm/pagewalk.c in the Linux kernel before 4.14.2 mishandles holes in hugetlb ranges, which allows local users to obtain sensitive information from uninitialized kernel memory via crafted use of the mincore() system call.
From the Ubuntu Security Team
It was discovered that the HugeTLB component of the Linux kernel did not properly handle holes in hugetlb ranges. A local attacker could use this to expose sensitive information (kernel memory).
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-10.11)
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Released
(4.13.0-38.43)
|
|
| trusty |
Not vulnerable
|
|
| xenial |
Released
(4.4.0-119.143)
|
|
| zesty |
Ignored
(end of life)
|
|
|
Patches: Introduced by 1e25a271c8ac1c9faebf4eb3fa609189e4e7b1b6 |
||
|
linux-armadaxp Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
| This package is not directly supported by the Ubuntu Security Team | ||
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Released
(4.4.0-1016.16)
|
|
| xenial |
Released
(4.4.0-1054.63)
|
|
| zesty |
Does not exist
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| xenial |
Ignored
(abandoned)
|
|
| zesty |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
upstream |
Released
(4.15~rc1)
|
| bionic |
Does not exist
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Ignored
(end of standard support, was needed)
|
|
| zesty |
Does not exist
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| xenial |
Not vulnerable
|
|
| zesty |
Not vulnerable
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Released
(4.13.0-38.43~16.04.1)
|
|
| zesty |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-8.9~18.04.1)
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Released
(4.13.0-38.43~16.04.1)
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-omap Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
| xenial |
Released
(4.13.0-1014.17)
|
|
| zesty |
Does not exist
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Ignored
(was needed ESM criteria)
|
|
| zesty |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Released
(4.13.0-1012.16)
|
|
| zesty |
Does not exist
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
| upstream |
Released
(4.15~rc1)
|
|
| artful |
Does not exist
|
|
| trusty |
Does not exist
|
|
| xenial |
Released
(4.4.0-1020.25)
|
|
| zesty |
Does not exist
|
|
|
linux-linaro-vexpress Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-quantal Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
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
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-saucy Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
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
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Ignored
(end of life, was needs-triage)
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Released
(4.4.0-119.143~14.04.1)
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Ignored
(abandoned)
|
|
| zesty |
Does not exist
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Not vulnerable
(4.15.0-1002.3)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.13.0-1022.24)
|
|
| zesty |
Does not exist
|
|
|
linux-qcm-msm Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-1016.17)
|
| bionic |
Not vulnerable
(4.15.0-1006.7)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.4.0-1086.94)
|
|
| zesty |
Ignored
(end of life)
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
artful |
Released
(4.4.0-1088.93)
|
| bionic |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Released
(4.4.0-1088.93)
|
|
| zesty |
Ignored
(end of life)
|
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
| bionic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(4.15~rc1)
|
|
| xenial |
Does not exist
|
|
| zesty |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-16994
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=373c4557d2aa362702c4c2d41288fb1e54990b7c
- http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.14.2
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1431
- https://github.com/torvalds/linux/commit/373c4557d2aa362702c4c2d41288fb1e54990b7c
- https://ubuntu.com/security/notices/USN-3617-1
- https://ubuntu.com/security/notices/USN-3617-2
- https://ubuntu.com/security/notices/USN-3617-3
- https://ubuntu.com/security/notices/USN-3619-1
- https://ubuntu.com/security/notices/USN-3619-2
- https://ubuntu.com/security/notices/USN-3632-1
- NVD
- Launchpad
- Debian