Vulnerability Monitor

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CVE-2019-19947

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.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 4.6, with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 13 products from linux, from debian, from canonical and 10 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2019, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2019-12-24T00:15:10.963

Last Modified

2024-11-21T04:35:43.153

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 4.6 (MEDIUM)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

3.9

Impact Score

2.9

Weaknesses

Type: Primary
CWE-908

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	linux	linux_kernel	≤ 5.4.6	Yes
Operating System	debian	debian_linux	8.0	Yes
Operating System	canonical	ubuntu_linux	14.04	Yes
Operating System	canonical	ubuntu_linux	16.04	Yes
Operating System	canonical	ubuntu_linux	18.04	Yes
Operating System	canonical	ubuntu_linux	19.10	Yes
Application	netapp	active_iq_unified_manager	-	Yes
Application	netapp	cloud_backup	-	Yes
Application	netapp	data_availability_services	-	Yes
Application	netapp	e-series_santricity_os_controller	≤ 11.70.2	Yes
Application	netapp	fas\/aff_baseboard_management_controller	-	Yes
Application	netapp	hci_baseboard_management_controller	h610s	Yes
Application	netapp	solidfire_\&_hci_management_node	-	Yes
Application	netapp	steelstore_cloud_integrated_storage	-	Yes
Hardware	netapp	aff_baseboard_management_controller	a700s	Yes
Hardware	netapp	solidfire_baseboard_management_controller	-	Yes

References

http://www.openwall.com/lists/oss-security/2019/12/24/1 Mailing List, Third Party Advisory ([email protected])
https://github.com/torvalds/linux/commit/da2311a6385c3b499da2ed5d9be59ce331fa93e9 Patch, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html Mailing List, Third Party Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html Mailing List, Third Party Advisory ([email protected])
https://security.netapp.com/advisory/ntap-20200204-0002/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/4284-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/4285-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/4427-1/ Third Party Advisory ([email protected])
https://usn.ubuntu.com/4485-1/ Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2019/12/24/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/torvalds/linux/commit/da2311a6385c3b499da2ed5d9be59ce331fa93e9 Patch, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.netapp.com/advisory/ntap-20200204-0002/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4284-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4285-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4427-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://usn.ubuntu.com/4485-1/ Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For linux's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.