CVE-2020-11494

Aliases:UBUNTU-CVE-2020-11494DEBIAN-CVE-2020-11494
Advisory lineage Upstream: 0 Downstream: 27
Modified
Published: 02 Apr 2020, 20:14
Last modified:04 Aug 2024, 11:35

Vulnerability Summary

Overall Risk (default)
low
18/100
CVSS Score
4.4 MEDIUM
v3.1 (nvd)
EPSS Score
0.72% LOW
1% probability +0.65%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

02 Apr 2020, 20:14
Published
Vulnerability first disclosed
04 Aug 2024, 11:35
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 4.4CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
  • v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:P/I:N/A:N

EPSS Trends

Current EPSS score: 0.72%• Percentile: 52%

Techniques & Countermeasures

  • CWE-908•Use of Uninitialized Resource

    The product uses or accesses a resource that has not been initialized.

  • CWE-909•Missing Initialization of Resource

    The product does not initialize a critical resource.

Affected Systems

  • canonical•ubuntu_linux

    14.04 | 16.04 | 18.04 | 19.10

  • debian•linux

    < 5.5.17-1 | < 5.5.17-1 | < 5.5.17-1 | < 5.5.17-1

  • ubuntu•linux

    all | < 4.4.0-179.209 | < 4.15.0-101.102

  • ubuntu•linux-aws

    < 4.4.0-1067.71 | < 4.4.0-1107.118 | < 4.15.0-1067.71

  • ubuntu•linux-aws-5.0

    all

  • ubuntu•linux-aws-5.3

    < 5.3.0-1019.21~18.04.1

  • ubuntu•linux-aws-fips

    < 4.15.0-2018.18 | all

  • ubuntu•linux-aws-hwe

    < 4.15.0-1067.71~16.04.1

  • ubuntu•linux-azure

    < 4.15.0-1083.93~14.04.1 | < 4.15.0-1083.93~16.04.1 | all

  • ubuntu•linux-azure-4.15

    < 4.15.0-1083.93

  • ubuntu•linux-azure-5.3

    < 5.3.0-1022.23~18.04.1

  • ubuntu•linux-azure-edge

    all

  • ubuntu•linux-azure-fde

    all

  • ubuntu•linux-azure-fips

    < 4.15.0-2006.7 | all

  • ubuntu•linux-bluefield

    all

  • ubuntu•linux-fips

    < 4.4.0-1034.39 | all | < 4.15.0-1029.34

  • ubuntu•linux-gcp

    < 4.15.0-1071.81~16.04.1 | all

  • ubuntu•linux-gcp-5.3

    < 5.3.0-1020.22~18.04.1

  • ubuntu•linux-gcp-edge

    all

  • ubuntu•linux-gcp-fips

    all

  • ubuntu•linux-gke

    all

  • ubuntu•linux-gke-4.15

    < 4.15.0-1059.62

  • ubuntu•linux-gke-5.0

    < 5.0.0-1037.38

  • ubuntu•linux-gke-5.3

    < 5.3.0-1020.22~18.04.1

  • ubuntu•linux-hwe

    < 4.15.0-101.102~16.04.1 | < 5.3.0-53.47~18.04.1

  • ubuntu•linux-hwe-edge

    all | all

  • ubuntu•linux-intel-iot-realtime

    all

  • ubuntu•linux-kvm

    < 4.4.0-1071.78 | < 4.15.0-1060.61

  • ubuntu•linux-lts-xenial

    < 4.4.0-179.209~14.04.1

  • ubuntu•linux-oem

    < 4.15.0-1081.91

  • ubuntu•linux-oem-5.6

    < 5.6.0-1008.8

  • ubuntu•linux-oem-osp1

    < 5.0.0-1052.57

  • ubuntu•linux-oracle

    < 4.15.0-1039.43~16.04.1 | < 4.15.0-1039.43

  • ubuntu•linux-oracle-5.0

    all

  • ubuntu•linux-oracle-5.3

    < 5.3.0-1018.20~18.04.1

  • ubuntu•linux-raspi

    < 5.4.0-1011.11

  • ubuntu•linux-raspi-realtime

    all

  • ubuntu•linux-raspi2

    < 4.4.0-1133.142 | < 4.15.0-1062.66 | all

  • ubuntu•linux-raspi2-5.3

    < 5.3.0-1026.28~18.04.1

  • ubuntu•linux-realtime

    all

  • ubuntu•linux-riscv

    all

  • ubuntu•linux-snapdragon

    < 4.4.0-1137.145 | < 4.15.0-1079.86

  • debian•debian_linux

    8.0 | 9.0

  • linux•linux_kernel

    ≥ 3.16, ≤ 5.6.2

  • opensuse•leap

    15.1

References (23)