CVE-2019-11815
Publication date 8 May 2019
Last updated 24 July 2024
Ubuntu priority
Cvss 3 Severity Score
An issue was discovered in rds_tcp_kill_sock in net/rds/tcp.c in the Linux kernel before 5.0.8. There is a race condition leading to a use-after-free, related to net namespace cleanup.
From the Ubuntu Security Team
It was discovered that a race condition leading to a use-after-free existed in the Reliable Datagram Sockets (RDS) protocol implementation in the Linux kernel. The RDS protocol is blacklisted by default in Ubuntu. If enabled, a local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
Status
Package | Ubuntu Release | Status |
---|---|---|
linux | ||
18.04 LTS bionic |
Fixed 4.15.0-55.60
|
|
16.04 LTS xenial |
Fixed 4.4.0-150.176
|
|
14.04 LTS trusty |
Not affected
|
|
linux-aws | ||
18.04 LTS bionic |
Fixed 4.15.0-1047.49
|
|
16.04 LTS xenial |
Fixed 4.4.0-1084.94
|
|
14.04 LTS trusty |
Fixed 4.4.0-1045.48
|
|
linux-aws-hwe | ||
18.04 LTS bionic | Not in release | |
16.04 LTS xenial |
Fixed 4.15.0-1047.49~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-azure | ||
18.04 LTS bionic |
Fixed 4.18.0-1025.27~18.04.1
|
|
16.04 LTS xenial |
Fixed 4.15.0-1051.56
|
|
14.04 LTS trusty | Ignored | |
linux-azure-edge | ||
18.04 LTS bionic |
Fixed 4.18.0-1025.27~18.04.1
|
|
16.04 LTS xenial |
Fixed 4.15.0-1051.56
|
|
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 4.15.0-1037.39
|
|
16.04 LTS xenial |
Fixed 4.15.0-1037.39~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-gcp-edge | ||
18.04 LTS bionic |
Fixed 4.15.0-1037.39
|
|
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-gke-4.15 | ||
18.04 LTS bionic |
Fixed 4.15.0-1037.39
|
|
16.04 LTS xenial | Not in release | |
14.04 LTS trusty | Not in release | |
linux-gke-5.0 | ||
18.04 LTS bionic |
Not affected
|
|
16.04 LTS xenial | Not in release | |
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 |
Fixed 5.0.0-23.24~18.04.1
|
|
16.04 LTS xenial |
Fixed 4.15.0-55.60~16.04.2
|
|
14.04 LTS trusty | Not in release | |
linux-hwe-edge | ||
18.04 LTS bionic |
Fixed 5.0.0-16.17~18.04.1
|
|
16.04 LTS xenial |
Fixed 4.15.0-55.60~16.04.2
|
|
14.04 LTS trusty | Not in release | |
linux-kvm | ||
18.04 LTS bionic |
Fixed 4.15.0-1039.39
|
|
16.04 LTS xenial |
Fixed 4.4.0-1047.53
|
|
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 4.4.0-150.176~14.04.1
|
|
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 4.15.0-1050.57
|
|
16.04 LTS xenial | Ignored | |
14.04 LTS trusty | Not in release | |
linux-oracle | ||
18.04 LTS bionic |
Fixed 4.15.0-1018.20
|
|
16.04 LTS xenial |
Fixed 4.15.0-1018.20~16.04.1
|
|
14.04 LTS trusty | Not in release | |
linux-raspi2 | ||
18.04 LTS bionic |
Fixed 4.15.0-1041.44
|
|
16.04 LTS xenial |
Fixed 4.4.0-1110.118
|
|
14.04 LTS trusty | Not in release | |
linux-snapdragon | ||
18.04 LTS bionic |
Fixed 4.15.0-1058.64
|
|
16.04 LTS xenial |
Fixed 4.4.0-1114.119
|
|
14.04 LTS trusty | Not in release |
Get expanded security coverage with Ubuntu Pro
Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.
Get Ubuntu ProNotes
seth-arnold
I haven't yet seen evidence to support allegations that this is remotely exploitable. Blacklisting rds.ko module is probably sufficient to prevent the vulnerable code from loading. The default configuration of the kmod package has included RDS in /etc/modprobe.d/blacklist-rare-network.conf since 14.04 LTS. I'm dropping priority as a result.
Severity score breakdown
Parameter | Value |
---|---|
Base score | 8.1 · High |
Attack vector | Network |
Attack complexity | High |
Privileges required | None |
User interaction | None |
Scope | Unchanged |
Confidentiality | High |
Integrity impact | High |
Availability impact | High |
Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-4118-1
- Linux kernel (AWS) vulnerabilities
- 2 September 2019
- USN-4008-1
- Linux kernel vulnerabilities
- 4 June 2019
- USN-4068-2
- Linux kernel (HWE) vulnerabilities
- 23 July 2019
- USN-4068-1
- Linux kernel vulnerabilities
- 23 July 2019
- USN-4008-3
- Linux kernel (Xenial HWE) vulnerabilities
- 7 June 2019
- USN-4005-1
- Linux kernel vulnerabilities
- 4 June 2019