CVE-2017-18270
Published: 18 May 2018
In the Linux kernel before 4.13.5, a local user could create keyrings for other users via keyctl commands, setting unwanted defaults or causing a denial of service.
From the Ubuntu Security Team
It was discovered that the keyring subsystem in the Linux kernel did not properly prevent a user from creating keyrings for other users. A local attacker could use this cause a denial of service or expose sensitive information.
Priority
Status
Package | Release | Status |
---|---|---|
linux
Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-17.20)
|
bionic |
Not vulnerable
(4.13.0-17.20)
|
|
cosmic |
Not vulnerable
(4.15.0-20.21)
|
|
trusty |
Released
(3.13.0-157.207)
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.4.0-98.121)
|
|
Patches:
Introduced by
69664cf16af4f31cd54d77948a4baf9c7e0ca7b9
|
||
linux-aws
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Not vulnerable
(4.15.0-1001.1)
|
|
cosmic |
Not vulnerable
(4.15.0-1007.7)
|
|
trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.4.0-1039.48)
|
|
linux-azure
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Not vulnerable
(4.15.0-1002.2)
|
|
cosmic |
Not vulnerable
(4.15.0-1009.9)
|
|
trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.13.0-1005.7)
|
|
linux-azure-edge
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.18.0-1003.3~18.04.1)
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Not vulnerable
(4.15.0-1002.2)
|
|
linux-euclid
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Ignored
(was needed ESM criteria)
|
|
linux-flo
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Ignored
(abandoned)
|
|
linux-gcp
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Not vulnerable
(4.15.0-1001.1)
|
|
cosmic |
Not vulnerable
(4.15.0-1006.6)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.13.0-1002.5)
|
|
linux-gke
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Ignored
(end of standard support, was needs-triage)
|
|
linux-goldfish
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Ignored
(end of life, was needs-triage)
|
|
linux-grouper
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-hwe
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Not vulnerable
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.13.0-26.29~16.04.2)
|
|
linux-hwe-edge
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Not vulnerable
(4.18.0-8.9~18.04.1)
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.13.0-26.29~16.04.2)
|
|
linux-kvm
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Not vulnerable
(4.15.0-1002.2)
|
|
cosmic |
Not vulnerable
(4.15.0-1008.8)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.4.0-1009.14)
|
|
linux-lts-trusty
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-lts-utopic
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-lts-vivid
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-lts-wily
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-lts-xenial
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Released
(4.4.0-98.121~14.04.1)
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-maguro
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-mako
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Ignored
(abandoned)
|
|
linux-manta
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Does not exist
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Does not exist
|
|
linux-oem
Launchpad, Ubuntu, Debian |
artful |
Does not exist
|
bionic |
Not vulnerable
(4.15.0-1002.3)
|
|
cosmic |
Not vulnerable
(4.15.0-1004.5)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Not vulnerable
(4.13.0-1008.9)
|
|
linux-raspi2
Launchpad, Ubuntu, Debian |
artful |
Released
(4.13.0-1006.6)
|
bionic |
Not vulnerable
(4.13.0-1006.6)
|
|
cosmic |
Not vulnerable
(4.15.0-1010.11)
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.4.0-1076.84)
|
|
linux-snapdragon
Launchpad, Ubuntu, Debian |
artful |
Released
(4.4.0-1078.83)
|
bionic |
Not vulnerable
|
|
cosmic |
Does not exist
|
|
trusty |
Does not exist
|
|
upstream |
Released
(4.14~rc3)
|
|
xenial |
Released
(4.4.0-1078.83)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.1 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | None |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=237bbd29f7a049d310d907f4b2716a7feef9abf3
- https://github.com/torvalds/linux/commit/237bbd29f7a049d310d907f4b2716a7feef9abf3
- https://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.13.5
- https://ubuntu.com/security/notices/USN-3754-1
- https://www.cve.org/CVERecord?id=CVE-2017-18270
- NVD
- Launchpad
- Debian