CVE-2019-19947
Published: 24 December 2019
In the Linux kernel through 5.4.6, there are information leaks of uninitialized memory to a USB device in the drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c driver, aka CID-da2311a6385c.
From the Ubuntu Security Team
It was discovered that the Kvaser CAN/USB driver in the Linux kernel did not properly initialize memory in certain situations. A local attacker could possibly use this to expose sensitive information (kernel memory).
Notes
| Author | Note |
|---|---|
| tyhicks | I don't think that the Fixes tag in patch is correct and that the info leaks were possible since the initial inclusion of the driver |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
linux Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-115.116)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(5.3.0-40.32)
|
|
| focal |
Not vulnerable
(5.4.0-18.22)
|
|
| trusty |
Ignored
(was needed ESM criteria)
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.4.0-186.216)
|
|
|
Patches: Introduced by 7259124eac7d1b76b41c7a9cb2511a30556deebe Introduced by 080f40a6fa28dab299da7a652e444b1e2d9231e7 |
||
|
linux-aws Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1080.84)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(5.3.0-1011.12)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Released
(4.4.0-1075.79)
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.4.0-1111.123)
|
|
|
linux-aws-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1025.28)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-aws-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1016.17~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-aws-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
linux-aws-hwe Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.15.0-1080.84~16.04.1)
|
|
|
linux-azure Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1032.34)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(5.3.0-1013.14)
|
|
| focal |
Not vulnerable
(5.4.0-1006.6)
|
|
| trusty |
Released
(4.15.0-1093.103~14.04.1)
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.15.0-1093.103~16.04.1)
|
|
|
linux-azure-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1093.103)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-azure-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1013.14~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-azure-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1020.20~18.04.1)
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-azure-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needs-triage now end-of-life)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-gcp Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1031.32)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(5.3.0-1012.13)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.15.0-1081.92~16.04.1)
|
|
|
linux-gcp-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1081.92)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-gcp-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1012.13~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-gcp-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
linux-gcp-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needs-triage now end-of-life)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-4.15 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1067.70)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1030.31)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-gke-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1012.13~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-hwe Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-40.32~18.04.1)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.15.0-115.116~16.04.1)
|
|
|
linux-hwe-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-37.41~18.04.1)
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-hwe-edge Launchpad, Ubuntu, Debian |
bionic |
Ignored
(was needs-triage now end-of-life)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Ignored
(was needs-triage now end-of-life)
|
|
|
linux-kvm Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1072.73)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(5.3.0-1010.11)
|
|
| focal |
Not vulnerable
(5.4.0-1004.4)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.4.0-1077.84)
|
|
|
linux-lts-trusty Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-lts-xenial Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Released
(4.4.0-186.216~14.04.1)
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-oem Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1094.104)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Ignored
(reached end-of-life)
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Ignored
(was needs-triage now end-of-life)
|
|
|
linux-oem-5.6 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| focal |
Not vulnerable
(5.6.0-1007.7)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-oem-osp1 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1039.44)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Ignored
(was pending \[5.0.0-1043.48\] now end-of-life)
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1051.55)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(5.3.0-1009.10)
|
|
| focal |
Not vulnerable
(5.4.0-1005.5)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.15.0-1051.55~16.04.1)
|
|
|
linux-oracle-5.0 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.0.0-1011.16)
|
| disco |
Does not exist
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle-5.3 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.3.0-1011.12~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-oracle-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1019.19~18.04.1)
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
linux-raspi Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| focal |
Not vulnerable
(5.4.0-1007.7)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-raspi-5.4 Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(5.4.0-1013.13~18.04.1)
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-raspi2 Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1068.72)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Released
(5.3.0-1018.20)
|
|
| focal |
Ignored
(was needed now end-of-life)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.4.0-1136.145)
|
|
|
linux-raspi2-5.3 Launchpad, Ubuntu, Debian |
bionic |
Released
(5.3.0-1018.20~18.04.1)
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-riscv Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| eoan |
Does not exist
|
|
| focal |
Not vulnerable
(5.4.0-24.28)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Does not exist
|
|
|
linux-snapdragon Launchpad, Ubuntu, Debian |
bionic |
Released
(4.15.0-1084.92)
|
| disco |
Ignored
(reached end-of-life)
|
|
| eoan |
Does not exist
|
|
| focal |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(5.5~rc3)
|
|
| xenial |
Released
(4.4.0-1140.148)
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 4.6 |
| Attack vector | Physical |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
References
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19947
- https://git.kernel.org/linus/da2311a6385c3b499da2ed5d9be59ce331fa93e9
- http://www.openwall.com/lists/oss-security/2019/12/24/1
- https://github.com/torvalds/linux/commit/da2311a6385c3b499da2ed5d9be59ce331fa93e9
- https://ubuntu.com/security/notices/USN-4284-1
- https://ubuntu.com/security/notices/USN-4285-1
- https://ubuntu.com/security/notices/USN-4427-1
- https://ubuntu.com/security/notices/USN-4485-1
- NVD
- Launchpad
- Debian