CVE-2020-11494

MEDIUM

Linux Kernel 3.16-5.6.2 - Information Disclosure via Uninitialized can_frame Data in slc_bump

Title source: llm
STIX 2.1

Description

An issue was discovered in slc_bump in drivers/net/can/slcan.c in the Linux kernel 3.16 through 5.6.2. It allows attackers to read uninitialized can_frame data, potentially containing sensitive information from kernel stack memory, if the configuration lacks CONFIG_INIT_STACK_ALL, aka CID-b9258a2cece4.

References (13)

Core 13
Core References
Mailing List, Third Party Advisory vendor-advisory x_refsource_suse
http://lists.opensuse.org/opensuse-security-announce/2020-04/msg00035.html
Third Party Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20200430-0004/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4364-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4368-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4363-1/
Third Party Advisory vendor-advisory x_refsource_ubuntu
https://usn.ubuntu.com/4369-1/
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html
Mailing List, Third Party Advisory mailing-list x_refsource_mlist
https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html
Third Party Advisory vendor-advisory x_refsource_debian
https://www.debian.org/security/2020/dsa-4698

Scores

CVSS v3 4.4
EPSS 0.0069
EPSS Percentile 47.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Details

CWE
CWE-909 CWE-908
Status published
Products (8)
canonical/ubuntu_linux 14.04
canonical/ubuntu_linux 16.04
canonical/ubuntu_linux 18.04
canonical/ubuntu_linux 19.10
debian/debian_linux 8.0
debian/debian_linux 9.0
linux/linux_kernel 3.16 - 5.6.2
opensuse/leap 15.1
Published Apr 02, 2020
Tracked Since Feb 18, 2026