CVE-2019-8956
Published: 22 February 2019
In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.
From the Ubuntu Security Team
Jakub Jirasek discovered a use-after-free vulnerability in the SCTP implementation in the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.13.0-16.19)
|
| cosmic |
Released
(4.18.0-17.18)
|
|
| trusty |
Not vulnerable
(3.11.0-12.19)
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.2.0-16.19)
|
|
|
Patches: Introduced by 4910280503f3af2857d5aa77e35b22d93a8960a8 |
||
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
| cosmic |
Released
(4.18.0-1012.14)
|
|
| trusty |
Not vulnerable
(4.4.0-1002.2)
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.4.0-1001.10)
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.15.0-1030.31~16.04.1)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1014.14~18.04.1)
|
| cosmic |
Released
(4.18.0-1014.14)
|
|
| trusty |
Not vulnerable
(4.15.0-1023.24~14.04.1)
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1014.14~18.04.1)
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.11.0-1009.9)
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.4.0-9019.20)
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Ignored
(abandoned)
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1001.1)
|
| cosmic |
Released
(4.18.0-1008.9)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.10.0-1004.4)
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1008.9~18.04.1)
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Ignored
(end of standard support)
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Ignored
(end of life)
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-17.18~18.04.1)
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-8.9~18.04.1)
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.8.0-36.36~16.04.1)
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.2)
|
| cosmic |
Released
(4.18.0-1009.9)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.4.0-1004.9)
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [end of standard support])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Not vulnerable
(4.4.0-13.29~14.04.1)
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Ignored
(abandoned)
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1002.3)
|
| cosmic |
Not vulnerable
(4.15.0-1004.5)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Ignored
(end of standard support, was needs-triage)
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.15.0-1007.9)
|
| cosmic |
Not vulnerable
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.15.0-1007.9~16.04.1)
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(4.13.0-1005.5)
|
| cosmic |
Released
(4.18.0-1011.13)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.2.0-1013.19)
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| cosmic |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0~rc6)
|
|
| xenial |
Not vulnerable
(4.4.0-1012.12)
|
|
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |