CVE-2019-9213
Published: 5 March 2019
In the Linux kernel before 4.20.14, expand_downwards in mm/mmap.c lacks a check for the mmap minimum address, which makes it easier for attackers to exploit kernel NULL pointer dereferences on non-SMAP platforms. This is related to a capability check for the wrong task.
From the Ubuntu Security Team
Jann Horn discovered that the mmap implementation in the Linux kernel did not properly check for the mmap minimum address in some situations. A local attacker could use this to assist exploiting a kernel NULL pointer dereference vulnerability.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-47.50)
|
| cosmic |
Released
(4.18.0-17.18)
|
|
| disco |
Not vulnerable
(5.0.0-7.8)
|
|
| trusty |
Released
(3.13.0-168.218)
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.4.0-145.171)
|
|
|
Patches: Introduced by 8869477a49c3e99def1fcdadd6bbc407fea14b45 |
||
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1035.37)
|
| cosmic |
Released
(4.18.0-1012.14)
|
|
| disco |
Not vulnerable
(5.0.0-1001.1)
|
|
| trusty |
Released
(4.4.0-1040.43)
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.4.0-1079.89)
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.15.0-1035.37~16.04.1)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1014.14~18.04.1)
|
| cosmic |
Released
(4.18.0-1014.14)
|
|
| disco |
Not vulnerable
(5.0.0-1001.1)
|
|
| trusty |
Released
(4.15.0-1041.45~14.04.1)
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.15.0-1041.45)
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1014.14~18.04.1)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.15.0-1041.45)
|
|
|
linux-euclid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Ignored
(was needs-triage ESM criteria)
|
|
|
linux-flo Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Ignored
(abandoned)
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1029.31)
|
| cosmic |
Released
(4.18.0-1008.9)
|
|
| disco |
Not vulnerable
(5.0.0-1001.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.15.0-1029.31~16.04.1)
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-1008.9~18.04.1)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-gke Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Ignored
(end of standard support)
|
|
|
linux-goldfish Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Ignored
(end of life)
|
|
|
linux-grouper Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(4.18.0-17.18~18.04.1)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.15.0-47.50~16.04.1)
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.0.0-15.16~18.04.1)
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.15.0-47.50~16.04.1)
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1031.31)
|
| cosmic |
Released
(4.18.0-1009.9)
|
|
| disco |
Not vulnerable
(5.0.0-1001.1)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.4.0-1043.49)
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-utopic Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Ignored
(end of life, was ignored)
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-vivid Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Ignored
(end of life, was ignored)
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-wily Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Ignored
(end of life, was ignored)
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Released
(4.4.0-144.170~14.04.1)
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-maguro Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-mako Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Ignored
(abandoned)
|
|
|
linux-manta Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| cosmic |
Does not exist
|
|
| disco |
Does not exist
|
|
| trusty |
Does not exist
(trusty was ignored [abandoned])
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1035.40)
|
| cosmic |
Released
(4.15.0-1035.40)
|
|
| disco |
Not vulnerable
(4.15.0-1035.40)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Ignored
(end of standard support, was needs-triage)
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1010.12)
|
| cosmic |
Released
(4.15.0-1010.12)
|
|
| disco |
Not vulnerable
(4.15.0-1010.12)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.15.0-1010.12~16.04.1)
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1033.35)
|
| cosmic |
Released
(4.18.0-1011.13)
|
|
| disco |
Not vulnerable
(5.0.0-1004.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.4.0-1106.114)
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1053.57)
|
| cosmic |
Does not exist
|
|
| disco |
Not vulnerable
(5.0.0-1010.10)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.0)
|
|
| xenial |
Released
(4.4.0-1110.115)
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 5.5 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
References
- http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=0a1d52994d440e21def1c2174932410b4f2a98a1
- https://ubuntu.com/security/notices/USN-3930-1
- https://ubuntu.com/security/notices/USN-3930-2
- https://ubuntu.com/security/notices/USN-3931-1
- https://ubuntu.com/security/notices/USN-3931-2
- https://ubuntu.com/security/notices/USN-3932-1
- https://ubuntu.com/security/notices/USN-3932-2
- https://ubuntu.com/security/notices/USN-3933-1
- https://ubuntu.com/security/notices/USN-3933-2
- https://www.cve.org/CVERecord?id=CVE-2019-9213
- NVD
- Launchpad
- Debian