CVE-2019-19523
Vulnerability Summary
Timeline
Description
In the Linux kernel before 5.3.7, there is a use-after-free bug that can be caused by a malicious USB device in the drivers/usb/misc/adutux.c driver, aka CID-44efc269db79.
CVSS Metrics
- v3.1•MEDIUM•Score: 4.6CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- v2.0•MEDIUM•Score: 4.9AV:L/AC:L/Au:N/C:N/I:N/A:C
EPSS Trends
Current EPSS score: 0.41%• Percentile: 35%
Techniques & Countermeasures
- CWE-416•Use After Free
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.
Affected Systems
- debian•linux
< 5.3.7-1 | < 5.3.7-1 | < 5.3.7-1 | < 5.3.7-1
- ubuntu•linux
all | < 4.4.0-168.197 | < 4.15.0-72.81
- ubuntu•linux-aws
< 4.4.0-1058.62 | < 4.4.0-1098.109 | < 4.15.0-1056.58
- ubuntu•linux-aws-5.0
< 5.0.0-1022.25~18.04.1
- ubuntu•linux-aws-fips
< 4.15.0-2018.18 | all
- ubuntu•linux-aws-hwe
< 4.15.0-1056.58~16.04.1
- ubuntu•linux-azure
< 4.15.0-1064.69~14.04.1 | < 4.15.0-1064.69 | < 5.0.0-1027.29~18.04.1
- 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
< 4.4.0-1025.30 | all
- ubuntu•linux-gcp
< 4.15.0-1050.53 | < 5.0.0-1026.27~18.04.1
- ubuntu•linux-gcp-edge
all
- ubuntu•linux-gcp-fips
all
- ubuntu•linux-gke
all
- ubuntu•linux-gke-4.15
< 4.15.0-1049.52
- ubuntu•linux-gke-5.0
< 5.0.0-1026.27~18.04.2
- ubuntu•linux-hwe
< 4.15.0-72.81~16.04.1 | < 5.0.0-37.40~18.04.1
- ubuntu•linux-hwe-edge
all | all
- ubuntu•linux-intel-iot-realtime
all
- ubuntu•linux-kvm
< 4.4.0-1062.69 | < 4.15.0-1051.51
- ubuntu•linux-lts-xenial
< 4.4.0-168.197~14.04.1
- ubuntu•linux-oem
< 4.15.0-1065.75
- ubuntu•linux-oem-osp1
< 5.0.0-1030.34
- ubuntu•linux-oracle
< 4.15.0-1030.33~16.04.1 | < 4.15.0-1030.33
- ubuntu•linux-oracle-5.0
< 5.0.0-1008.13~18.04.1
- ubuntu•linux-raspi-realtime
all
- ubuntu•linux-raspi2
< 4.4.0-1125.134 | < 4.15.0-1052.56 | all
- ubuntu•linux-realtime
all
- ubuntu•linux-riscv
all
- ubuntu•linux-snapdragon
< 4.4.0-1129.137 | < 4.15.0-1069.76
- debian•debian_linux
8.0
- linux•linux_kernel
< 5.3.7
- opensuse•leap
15.1
References (10)
- https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.3.7
- https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=44efc269db7929f6275a1fa927ef082e533ecde0
- http://www.openwall.com/lists/oss-security/2019/12/03/4
- https://lists.debian.org/debian-lts-announce/2020/01/msg00013.html
- https://lists.debian.org/debian-lts-announce/2020/03/msg00001.html
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00021.html
- https://ubuntu.com/security/CVE-2019-19523
- https://git.kernel.org/linus/44efc269db7929f6275a1fa927ef082e533ecde0
- https://www.cve.org/CVERecord?id=CVE-2019-19523
- https://security-tracker.debian.org/tracker/CVE-2019-19523