CVE-2020-15393
Vulnerability Summary
Timeline
Description
In the Linux kernel 4.4 through 5.7.6, usbtest_disconnect in drivers/usb/misc/usbtest.c has a memory leak, aka CID-28ebeb8db770.
CVSS Metrics
- v3.1•MEDIUM•Score: 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- v2.0•LOW•Score: 2.1AV:L/AC:L/Au:N/C:N/I:N/A:P
EPSS Trends
Current EPSS score: 0.45%• Percentile: 38%
Techniques & Countermeasures
- CWE-401•Missing Release of Memory after Effective Lifetime
The product does not sufficiently track and release allocated memory after it has been used, making the memory unavailable for reallocation and reuse.
Affected Systems
- canonical•ubuntu_linux
14.04 | 16.04 | 18.04 | 20.04
- debian•linux
< 5.7.10-1 | < 5.7.10-1 | < 5.7.10-1 | < 5.7.10-1
- ubuntu•linux
all | < 4.4.0-187.217 | < 4.15.0-115.116 | < 5.4.0-45.49
- ubuntu•linux-aws
< 4.4.0-1076.80 | < 4.4.0-1112.124 | < 4.15.0-1080.84 | < 5.4.0-1022.22
- ubuntu•linux-aws-5.0
all
- ubuntu•linux-aws-5.3
< 5.3.0-1033.35
- ubuntu•linux-aws-5.4
< 5.4.0-1022.22~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2025.25 | all | < 5.4.0-1069.73+fips2
- ubuntu•linux-aws-hwe
< 4.15.0-1080.84~16.04.1
- ubuntu•linux-azure
< 4.15.0-1093.103~14.04.1 | < 4.15.0-1093.103~16.04.1 | all | < 5.4.0-1023.23
- ubuntu•linux-azure-4.15
< 4.15.0-1093.103
- ubuntu•linux-azure-5.3
< 5.3.0-1035.36
- ubuntu•linux-azure-5.4
< 5.4.0-1023.23~18.04.1
- ubuntu•linux-azure-edge
all
- ubuntu•linux-azure-fde
all
- ubuntu•linux-azure-fips
< 4.15.0-2007.8 | all | < 5.4.0-1073.76+fips1
- ubuntu•linux-bluefield
all
- ubuntu•linux-fips
< 4.4.0-1044.49 | all | < 4.15.0-1039.44
- ubuntu•linux-gcp
< 4.15.0-1081.92~16.04.1 | all | < 5.4.0-1022.22
- ubuntu•linux-gcp-4.15
< 4.15.0-1081.92
- ubuntu•linux-gcp-5.3
all
- ubuntu•linux-gcp-5.4
< 5.4.0-1022.22~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all | < 5.4.0-1067.71~20.04.1
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1067.70
- ubuntu•linux-gke-5.3
< 5.3.0-1033.35
- ubuntu•linux-hwe
< 4.15.0-115.116~16.04.1 | < 5.3.0-65.59
- ubuntu•linux-hwe-5.4
< 5.4.0-45.49~18.04.2
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1078.85 | < 4.15.0-1072.73 | < 5.4.0-1021.21
- ubuntu•linux-lts-xenial
< 4.4.0-187.217~14.04.1
- ubuntu•linux-oem
< 4.15.0-1094.104
- ubuntu•linux-oem-5.6
< 5.6.0-1031.32
- ubuntu•linux-oracle
< 4.15.0-1051.55~16.04.1 | < 4.15.0-1051.55 | < 5.4.0-1022.22
- ubuntu•linux-oracle-5.0
all
- ubuntu•linux-oracle-5.3
all
- ubuntu•linux-oracle-5.4
< 5.4.0-1022.22~18.04.1
- ubuntu•linux-raspi
< 5.4.0-1016.17
- ubuntu•linux-raspi-5.4
< 5.4.0-1016.17~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1137.146 | < 4.15.0-1068.72 | all
- ubuntu•linux-raspi2-5.3
< 5.3.0-1032.34
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
< 5.4.0-31.35 | all
- ubuntu•linux-snapdragon
< 4.4.0-1141.149 | < 4.15.0-1084.92
- debian•debian_linux
9.0
- linux•linux_kernel
≥ 4.4, ≤ 5.7.6
- opensuse•leap
15.1 | 15.2
References (20)
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=28ebeb8db77035e058a510ce9bd17c2b9a009dba
- https://lkml.org/lkml/2020/6/2/968
- http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00071.html
- http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00009.html
- https://lists.debian.org/debian-lts-announce/2020/08/msg00019.html
- https://usn.ubuntu.com/4463-1/
- https://usn.ubuntu.com/4465-1/
- https://usn.ubuntu.com/4483-1/
- https://usn.ubuntu.com/4485-1/
- https://lists.debian.org/debian-lts-announce/2020/10/msg00032.html
- https://lists.debian.org/debian-lts-announce/2020/10/msg00034.html
- https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=831eebad70a25f55b5745453ac252d4afe997187
- https://ubuntu.com/security/CVE-2020-15393
- https://git.kernel.org/linus/28ebeb8db77035e058a510ce9bd17c2b9a009dba
- https://ubuntu.com/security/notices/USN-4463-1
- https://ubuntu.com/security/notices/USN-4465-1
- https://ubuntu.com/security/notices/USN-4483-1
- https://ubuntu.com/security/notices/USN-4485-1
- https://www.cve.org/CVERecord?id=CVE-2020-15393
- https://security-tracker.debian.org/tracker/CVE-2020-15393