SB2019122418 - Use of uninitialized resource in Linux kernel
Published: December 24, 2019
Security Bulletin ID
SB2019122418
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Use of uninitialized resource (CVE-ID: CVE-2019-19947)
CWE-ID: CWE-908 - Use of Uninitialized Resource
CVSSv4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
The vulnerability allows a local non-authenticated attacker to gain access to sensitive information.
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.
Remediation
Install update from vendor's website.
References
- https://github.com/torvalds/linux/commit/da2311a6385c3b499da2ed5d9be59ce331fa93e9
- http://www.openwall.com/lists/oss-security/2019/12/24/1
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://security.netapp.com/advisory/ntap-20200204-0002/
- https://usn.ubuntu.com/4285-1/
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- https://usn.ubuntu.com/4284-1/
- https://usn.ubuntu.com/4427-1/
- https://usn.ubuntu.com/4485-1/