CVE-2017-17450
Publication date 6 December 2017
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
net/netfilter/xt_osf.c in the Linux kernel through 4.14.4 does not require the CAP_NET_ADMIN capability for add_callback and remove_callback operations, which allows local users to bypass intended access restrictions because the xt_osf_fingers data structure is shared across all net namespaces.
From the Ubuntu Security Team
It was discovered that the netfilter passive OS fingerprinting (xt_osf) module did not properly perform access control checks. A local attacker could improperly modify the system-wide OS fingerprint list.
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.4.0-119.143
|
|
14.04 LTS trusty |
Fixed 3.13.0-142.191
|
|
linux-armadaxp | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-aws | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.4.0-1054.63
|
|
14.04 LTS trusty |
Fixed 4.4.0-1016.16
|
|
linux-azure | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.13.0-1014.17
|
|
14.04 LTS trusty |
Not affected
|
|
linux-euclid | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-flo | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-gcp | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.13.0-1012.16
|
|
14.04 LTS trusty | Not in release | |
linux-gke | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-goldfish | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-grouper | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-hwe | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.13.0-38.43~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-hwe-edge | 18.04 LTS bionic |
Fixed 4.18.0-8.9~18.04.1
|
16.04 LTS xenial |
Fixed 4.13.0-38.43~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-kvm | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.4.0-1020.25
|
|
14.04 LTS trusty | Not in release | |
linux-linaro-omap | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-linaro-shared | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-linaro-vexpress | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-quantal | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-raring | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-saucy | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-trusty | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-utopic | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-vivid | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Ignored | |
linux-lts-wily | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-lts-xenial | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty |
Fixed 4.4.0-119.143~14.04.1
|
|
linux-maguro | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-mako | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-manta | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-oem | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.13.0-1022.24
|
|
14.04 LTS trusty | Not in release | |
linux-qcm-msm | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-raspi2 | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.4.0-1086.94
|
|
14.04 LTS trusty | Not in release | |
linux-snapdragon | 18.04 LTS bionic |
Not affected
|
16.04 LTS xenial |
Fixed 4.4.0-1088.93
|
|
14.04 LTS trusty | Not in release | |
linux-ti-omap4 | 18.04 LTS bionic | Not in release |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.8 · High |
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
Related Ubuntu Security Notices (USN)
- USN-3583-2
- Linux kernel (Trusty HWE) vulnerabilities
- 23 February 2018
- USN-3619-2
- Linux kernel (Xenial HWE) vulnerabilities
- 5 April 2018
- USN-3619-1
- Linux kernel vulnerabilities
- 4 April 2018
- USN-3617-3
- Linux kernel (Raspberry Pi 2) vulnerabilities
- 4 April 2018
- USN-3617-1
- Linux kernel vulnerabilities
- 3 April 2018
- USN-3617-2
- Linux (HWE) vulnerabilities
- 3 April 2018
- USN-3632-1
- Linux kernel (Azure) vulnerabilities
- 24 April 2018
- USN-3583-1
- Linux kernel vulnerabilities
- 23 February 2018