CVE-2017-17448
Published: 6 December 2017
net/netfilter/nfnetlink_cthelper.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for new, get, and del operations, which allows local users to bypass intended access restrictions because the nfnl_cthelper_list data structure is shared across all net namespaces.
From the Ubuntu Security Team
It was discovered that the netfilter component of the Linux did not properly restrict access to the connection tracking helpers list. A local attacker could use this to bypass intended access restrictions.
Priority
Status
Package | Release | Status |
---|---|---|
linux Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-10.11)
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Released
(4.13.0-38.43)
|
|
trusty |
Released
(3.13.0-144.193)
|
|
xenial |
Released
(4.4.0-119.143)
|
|
zesty |
Ignored
(end of life)
|
|
Patches: Introduced by 12f7a505331e6b2754684b509f2ac8f0011ce644 |
||
linux-linaro-omap Launchpad, Ubuntu, Debian |
upstream |
Released
(4.15~rc4)
|
bionic |
Does not exist
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-ti-omap4 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-armadaxp Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
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-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Ignored
(abandoned)
|
|
zesty |
Does not exist
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
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~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-linaro-shared Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Released
(4.4.0-1016.16)
|
|
xenial |
Released
(4.4.0-1054.63)
|
|
zesty |
Does not exist
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
upstream |
Released
(4.15~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.13.0-1012.16)
|
|
zesty |
Does not exist
|
|
linux-gke Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Ignored
(end of standard support, was needed)
|
|
zesty |
Does not exist
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
upstream |
Released
(4.15~rc4)
|
|
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~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.13.0-38.43~16.04.1)
|
|
zesty |
Does not exist
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
|
|
xenial |
Released
(4.4.0-1020.25)
|
|
zesty |
Does not exist
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Ignored
(end of life, was needs-triage)
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
xenial |
Does not exist
|
|
zesty |
Does not exist
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
upstream |
Released
(4.15~rc4)
|
|
artful |
Does not exist
|
|
trusty |
Released
(4.4.0-119.143~14.04.1)
|
|
xenial |
Does not exist
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
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~rc4)
|
|
xenial |
Released
(4.4.0-1088.93)
|
|
zesty |
Ignored
(end of life)
|
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 |
Attack vector | Local |
Attack complexity | Low |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-17448
- https://patchwork.kernel.org/patch/10089373/
- https://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git/commit/?id=4b380c42f7d00a395feede754f0bc2292eebe6e5
- 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-3620-1
- https://ubuntu.com/security/notices/USN-3620-2
- https://ubuntu.com/security/notices/USN-3619-2
- https://ubuntu.com/security/notices/USN-3632-1
- NVD
- Launchpad
- Debian