CVE-2017-18249
Publication date 26 March 2018
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
The add_free_nid function in fs/f2fs/node.c in the Linux kernel before 4.12 does not properly track an allocated nid, which allows local users to cause a denial of service (race condition) or possibly have unspecified other impact via concurrent threads.
From the Ubuntu Security Team
It was discovered that a race condition existed in the f2fs file system implementation in the Linux kernel. A local attacker could use this to cause a denial of service.
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.4.0-145.171
|
|
14.04 LTS trusty | Ignored | |
linux-aws | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.4.0-1079.89
|
|
14.04 LTS trusty |
Fixed 4.4.0-1040.43
|
|
linux-aws-hwe | ||
18.04 LTS bionic | Not in release | |
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty | Not in release | |
linux-azure | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.13.0-1005.7
|
|
14.04 LTS trusty |
Not affected
|
|
linux-azure-edge | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.13.0-1005.7
|
|
14.04 LTS trusty | Not in release | |
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 4.13.0-1002.5
|
|
14.04 LTS trusty | Not in release | |
linux-gcp-edge | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-gke | ||
18.04 LTS bionic |
Not affected
|
|
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 4.13.0-26.29~16.04.2
|
|
14.04 LTS trusty | Not in release | |
linux-hwe-edge | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.13.0-26.29~16.04.2
|
|
14.04 LTS trusty | Not in release | |
linux-kvm | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.4.0-1043.49
|
|
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 | Ignored | |
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 | Ignored | |
linux-lts-xenial | ||
18.04 LTS bionic | Not in release | |
16.04 LTS xenial | Not in release | |
14.04 LTS trusty |
Fixed 4.4.0-144.170~14.04.1
|
|
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 |
Not affected
|
|
14.04 LTS trusty | Not in release | |
linux-oracle | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Not affected
|
|
14.04 LTS trusty | Not in release | |
linux-raspi2 | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.4.0-1106.114
|
|
14.04 LTS trusty | Not in release | |
linux-snapdragon | ||
18.04 LTS bionic |
Fixed 4.15.0-1053.57
|
|
16.04 LTS xenial |
Fixed 4.4.0-1110.115
|
|
14.04 LTS trusty | Not in release |
Severity score breakdown
Parameter | Value |
---|---|
Base score | 7.0 · High |
Attack vector | Local |
Attack complexity | High |
Privileges required | Low |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-3932-1
- Linux kernel vulnerabilities
- 2 April 2019
- USN-3932-2
- Linux kernel (Xenial HWE) vulnerabilities
- 2 April 2019