CVE-2018-14734
Publication date 29 July 2018
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
drivers/infiniband/core/ucma.c in the Linux kernel through 4.17.11 allows ucma_leave_multicast to access a certain data structure after a cleanup step in ucma_process_join, which allows attackers to cause a denial of service (use-after-free).
From the Ubuntu Security Team
Noam Rathaus discovered that a use-after-free vulnerability existed in the Infiniband implementation in the Linux kernel. An attacker could use this to cause a denial of service (system crash).
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | ||
18.04 LTS bionic |
Fixed 4.15.0-43.46
|
|
16.04 LTS xenial |
Fixed 4.4.0-138.164
|
|
14.04 LTS trusty |
Fixed 3.13.0-164.214
|
|
linux-aws | ||
18.04 LTS bionic |
Fixed 4.15.0-1031.33
|
|
16.04 LTS xenial |
Fixed 4.4.0-1070.80
|
|
14.04 LTS trusty |
Fixed 4.4.0-1032.35
|
|
linux-aws-hwe | ||
18.04 LTS bionic | Not in release | |
16.04 LTS xenial |
Fixed 4.15.0-1031.33~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-azure | ||
18.04 LTS bionic |
Fixed 4.15.0-1036.38
|
|
16.04 LTS xenial |
Fixed 4.15.0-1036.38~16.04.1
|
|
14.04 LTS trusty |
Fixed 4.15.0-1036.38~14.04.2
|
|
linux-azure-edge | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.18.0-1006.6~16.04.2
|
|
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 |
Fixed 4.15.0-1026.27
|
|
16.04 LTS xenial |
Fixed 4.15.0-1026.27~16.04.1
|
|
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 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 4.15.0-43.46~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-hwe-edge | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.15.0-43.46~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-kvm | ||
18.04 LTS bionic |
Fixed 4.15.0-1028.28
|
|
16.04 LTS xenial |
Fixed 4.4.0-1036.42
|
|
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 | Not in release | |
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 4.4.0-138.164~14.04.1
|
|
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 |
Fixed 4.15.0-1030.35
|
|
16.04 LTS xenial | Ignored | |
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 |
Fixed 4.15.0-1030.32
|
|
16.04 LTS xenial |
Fixed 4.4.0-1099.107
|
|
14.04 LTS trusty | Not in release | |
linux-snapdragon | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial |
Fixed 4.4.0-1103.108
|
|
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-3847-2
- Linux kernel (HWE) vulnerabilities
- 20 December 2018
- USN-3847-3
- Linux kernel (Azure) vulnerabilities
- 20 December 2018
- USN-3847-1
- Linux kernel vulnerabilities
- 20 December 2018
- USN-3797-2
- Linux kernel (Xenial HWE) vulnerabilities
- 23 October 2018
- USN-3797-1
- Linux kernel vulnerabilities
- 23 October 2018
- USN-3849-2
- Linux kernel (Trusty HWE) vulnerabilities
- 20 December 2018
- USN-3849-1
- Linux kernel vulnerabilities
- 20 December 2018
Other references
- https://git.kernel.org/linus/cb2595c1393b4a5211534e6f0a0fbad369e21ad8 (4.18-rc1)
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cb2595c1393b4a5211534e6f0a0fbad369e21ad8
- https://github.com/torvalds/linux/commit/cb2595c1393b4a5211534e6f0a0fbad369e21ad8
- https://www.cve.org/CVERecord?id=CVE-2018-14734